Class: AWS.DynamoDB
- Inherits:
-
AWS.Service
- Object
- AWS.Service
- AWS.DynamoDB
- Identifier:
- dynamodb
- API Version:
- 2012-08-10
- Defined in:
- (unknown)
Overview
Constructs a service interface object. Each API operation is exposed as a function on service.
Service Description
Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. DynamoDB lets you offload the administrative burdens of operating and scaling a distributed database, so that you don't have to worry about hardware provisioning, setup and configuration, replication, software patching, or cluster scaling.
With DynamoDB, you can create database tables that can store and retrieve any amount of data, and serve any level of request traffic. You can scale up or scale down your tables' throughput capacity without downtime or performance degradation, and use the Amazon Web Services Management Console to monitor resource utilization and performance metrics.
DynamoDB automatically spreads the data and traffic for your tables over a sufficient number of servers to handle your throughput and storage requirements, while maintaining consistent and fast performance. All of your data is stored on solid state disks (SSDs) and automatically replicated across multiple Availability Zones in an Amazon Web Services Region, providing built-in high availability and data durability.
Sending a Request Using DynamoDB
var dynamodb = new AWS.DynamoDB();
dynamodb.batchExecuteStatement(params, function (err, data) {
if (err) console.log(err, err.stack); // an error occurred
else console.log(data); // successful response
});
Locking the API Version
In order to ensure that the DynamoDB object uses this specific API, you can
construct the object by passing the apiVersion
option to the constructor:
var dynamodb = new AWS.DynamoDB({apiVersion: '2012-08-10'});
You can also set the API version globally in AWS.config.apiVersions
using
the dynamodb service identifier:
AWS.config.apiVersions = {
dynamodb: '2012-08-10',
// other service API versions
};
var dynamodb = new AWS.DynamoDB();
Version:
-
2012-08-10
Defined Under Namespace
Modules: Converter Classes: DocumentClient
Waiter Resource States
This service supports a list of resource states that can be polled using the waitFor() method. The resource states are:
Constructor Summary collapse
-
new AWS.DynamoDB(options = {}) ⇒ Object
constructor
Constructs a service object.
Property Summary collapse
-
endpoint ⇒ AWS.Endpoint
readwrite
An Endpoint object representing the endpoint URL for service requests.
Properties inherited from AWS.Service
Method Summary collapse
-
batchExecuteStatement(params = {}, callback) ⇒ AWS.Request
This operation allows you to perform batch reads or writes on data stored in DynamoDB, using PartiQL.
-
batchGetItem(params = {}, callback) ⇒ AWS.Request
The
BatchGetItem
operation returns the attributes of one or more items from one or more tables. -
batchWriteItem(params = {}, callback) ⇒ AWS.Request
The
BatchWriteItem
operation puts or deletes multiple items in one or more tables. -
createBackup(params = {}, callback) ⇒ AWS.Request
Creates a backup for an existing table.
Each time you create an on-demand backup, the entire table data is backed up.
-
createGlobalTable(params = {}, callback) ⇒ AWS.Request
Creates a global table from an existing table.
-
createTable(params = {}, callback) ⇒ AWS.Request
The
CreateTable
operation adds a new table to your account. -
deleteBackup(params = {}, callback) ⇒ AWS.Request
Deletes an existing backup of a table.
You can call
.DeleteBackup
at a maximum rate of 10 times per second. -
deleteItem(params = {}, callback) ⇒ AWS.Request
Deletes a single item in a table by primary key.
-
deleteResourcePolicy(params = {}, callback) ⇒ AWS.Request
Deletes the resource-based policy attached to the resource, which can be a table or stream.
DeleteResourcePolicy
is an idempotent operation; running it multiple times on the same resource doesn't result in an error response, unless you specify anExpectedRevisionId
, which will then return aPolicyNotFoundException
.To make sure that you don't inadvertently lock yourself out of your own resources, the root principal in your Amazon Web Services account can perform
DeleteResourcePolicy
requests, even if your resource-based policy explicitly denies the root principal's access. -
deleteTable(params = {}, callback) ⇒ AWS.Request
The
DeleteTable
operation deletes a table and all of its items. -
describeBackup(params = {}, callback) ⇒ AWS.Request
Describes an existing backup of a table.
You can call
.DescribeBackup
at a maximum rate of 10 times per second. -
describeContinuousBackups(params = {}, callback) ⇒ AWS.Request
Checks the status of continuous backups and point in time recovery on the specified table.
-
describeContributorInsights(params = {}, callback) ⇒ AWS.Request
Returns information about contributor insights for a given table or global secondary index.
.
-
describeEndpoints(params = {}, callback) ⇒ AWS.Request
Returns the regional endpoint information.
-
describeExport(params = {}, callback) ⇒ AWS.Request
Describes an existing table export.
.
-
describeGlobalTable(params = {}, callback) ⇒ AWS.Request
Returns information about the specified global table.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables.
-
describeGlobalTableSettings(params = {}, callback) ⇒ AWS.Request
Describes Region-specific settings for a global table.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables.
-
describeImport(params = {}, callback) ⇒ AWS.Request
Represents the properties of the import.
-
describeKinesisStreamingDestination(params = {}, callback) ⇒ AWS.Request
Returns information about the status of Kinesis streaming.
.
-
describeLimits(params = {}, callback) ⇒ AWS.Request
Returns the current provisioned-capacity quotas for your Amazon Web Services account in a Region, both for the Region as a whole and for any one DynamoDB table that you create there.
When you establish an Amazon Web Services account, the account has initial quotas on the maximum read capacity units and write capacity units that you can provision across all of your DynamoDB tables in a given Region.
-
describeTable(params = {}, callback) ⇒ AWS.Request
Returns information about the table, including the current status of the table, when it was created, the primary key schema, and any indexes on the table.
For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version).
-
describeTableReplicaAutoScaling(params = {}, callback) ⇒ AWS.Request
Describes auto scaling settings across replicas of the global table at once.
For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version).
-
describeTimeToLive(params = {}, callback) ⇒ AWS.Request
Gives a description of the Time to Live (TTL) status on the specified table.
-
disableKinesisStreamingDestination(params = {}, callback) ⇒ AWS.Request
Stops replication from the DynamoDB table to the Kinesis data stream.
-
enableKinesisStreamingDestination(params = {}, callback) ⇒ AWS.Request
Starts table data replication to the specified Kinesis data stream at a timestamp chosen during the enable workflow.
-
executeStatement(params = {}, callback) ⇒ AWS.Request
This operation allows you to perform reads and singleton writes on data stored in DynamoDB, using PartiQL.
For PartiQL reads (
SELECT
statement), if the total number of processed items exceeds the maximum dataset size limit of 1 MB, the read stops and results are returned to the user as aLastEvaluatedKey
value to continue the read in a subsequent operation. -
executeTransaction(params = {}, callback) ⇒ AWS.Request
This operation allows you to perform transactional reads or writes on data stored in DynamoDB, using PartiQL.
Note: The entire transaction must consist of either read statements or write statements, you cannot mix both in one transaction.- exportTableToPointInTime(params = {}, callback) ⇒ AWS.Request
Exports table data to an S3 bucket.
- getItem(params = {}, callback) ⇒ AWS.Request
The
GetItem
operation returns a set of attributes for the item with the given primary key.- getResourcePolicy(params = {}, callback) ⇒ AWS.Request
Returns the resource-based policy document attached to the resource, which can be a table or stream, in JSON format.
GetResourcePolicy
follows an eventually consistent model.- importTable(params = {}, callback) ⇒ AWS.Request
Imports table data from an S3 bucket.
- listBackups(params = {}, callback) ⇒ AWS.Request
List DynamoDB backups that are associated with an Amazon Web Services account and weren't made with Amazon Web Services Backup.
- listContributorInsights(params = {}, callback) ⇒ AWS.Request
Returns a list of ContributorInsightsSummary for a table and all its global secondary indexes.
.
- listExports(params = {}, callback) ⇒ AWS.Request
Lists completed exports within the past 90 days.
.
- listGlobalTables(params = {}, callback) ⇒ AWS.Request
Lists all global tables that have a replica in the specified Region.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables.
- listImports(params = {}, callback) ⇒ AWS.Request
Lists completed imports within the past 90 days.
- listTables(params = {}, callback) ⇒ AWS.Request
Returns an array of table names associated with the current account and endpoint.
- listTagsOfResource(params = {}, callback) ⇒ AWS.Request
List all tags on an Amazon DynamoDB resource.
- putItem(params = {}, callback) ⇒ AWS.Request
Creates a new item, or replaces an old item with a new item.
- putResourcePolicy(params = {}, callback) ⇒ AWS.Request
Attaches a resource-based policy document to the resource, which can be a table or stream.
- query(params = {}, callback) ⇒ AWS.Request
You must provide the name of the partition key attribute and a single value for that attribute.
- restoreTableFromBackup(params = {}, callback) ⇒ AWS.Request
Creates a new table from an existing backup.
- restoreTableToPointInTime(params = {}, callback) ⇒ AWS.Request
Restores the specified table to the specified point in time within
EarliestRestorableDateTime
andLatestRestorableDateTime
.- scan(params = {}, callback) ⇒ AWS.Request
The
Scan
operation returns one or more items and item attributes by accessing every item in a table or a secondary index.- tagResource(params = {}, callback) ⇒ AWS.Request
Associate a set of tags with an Amazon DynamoDB resource.
- transactGetItems(params = {}, callback) ⇒ AWS.Request
TransactGetItems
is a synchronous operation that atomically retrieves multiple items from one or more tables (but not from indexes) in a single account and Region.- transactWriteItems(params = {}, callback) ⇒ AWS.Request
TransactWriteItems
is a synchronous write operation that groups up to 100 action requests.- untagResource(params = {}, callback) ⇒ AWS.Request
Removes the association of tags from an Amazon DynamoDB resource.
- updateContinuousBackups(params = {}, callback) ⇒ AWS.Request
UpdateContinuousBackups
enables or disables point in time recovery for the specified table.- updateContributorInsights(params = {}, callback) ⇒ AWS.Request
Updates the status for contributor insights for a specific table or index.
- updateGlobalTable(params = {}, callback) ⇒ AWS.Request
Adds or removes replicas in the specified global table.
- updateGlobalTableSettings(params = {}, callback) ⇒ AWS.Request
Updates settings for a global table.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables.
- updateItem(params = {}, callback) ⇒ AWS.Request
Edits an existing item's attributes, or adds a new item to the table if it does not already exist.
- updateKinesisStreamingDestination(params = {}, callback) ⇒ AWS.Request
The command to update the Kinesis stream destination.
.
- updateTable(params = {}, callback) ⇒ AWS.Request
Modifies the provisioned throughput settings, global secondary indexes, or DynamoDB Streams settings for a given table.
For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version).
- updateTableReplicaAutoScaling(params = {}, callback) ⇒ AWS.Request
Updates auto scaling settings on your global tables at once.
For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version).
- updateTimeToLive(params = {}, callback) ⇒ AWS.Request
The
UpdateTimeToLive
method enables or disables Time to Live (TTL) for the specified table.- waitFor(state, params = {}, callback) ⇒ AWS.Request
Waits for a given DynamoDB resource.
Methods inherited from AWS.Service
makeRequest, makeUnauthenticatedRequest, defineService
Constructor Details
new AWS.DynamoDB(options = {}) ⇒ Object
Constructs a service object. This object has one method for each API operation.
Examples:
Constructing a DynamoDB object
var dynamodb = new AWS.DynamoDB({apiVersion: '2012-08-10'});
Options Hash (options):
-
params
(map)
—
An optional map of parameters to bind to every request sent by this service object. For more information on bound parameters, see "Working with Services" in the Getting Started Guide.
-
endpoint
(String|AWS.Endpoint)
—
The endpoint URI to send requests to. The default endpoint is built from the configured
region
. The endpoint should be a string like'https://{service}.{region}.amazonaws.com'
or an Endpoint object. -
accessKeyId
(String)
—
your AWS access key ID.
-
secretAccessKey
(String)
—
your AWS secret access key.
-
sessionToken
(AWS.Credentials)
—
the optional AWS session token to sign requests with.
-
credentials
(AWS.Credentials)
—
the AWS credentials to sign requests with. You can either specify this object, or specify the accessKeyId and secretAccessKey options directly.
-
credentialProvider
(AWS.CredentialProviderChain)
—
the provider chain used to resolve credentials if no static
credentials
property is set. -
region
(String)
—
the region to send service requests to. See AWS.DynamoDB.region for more information.
-
maxRetries
(Integer)
—
the maximum amount of retries to attempt with a request. See AWS.DynamoDB.maxRetries for more information.
-
maxRedirects
(Integer)
—
the maximum amount of redirects to follow with a request. See AWS.DynamoDB.maxRedirects for more information.
-
sslEnabled
(Boolean)
—
whether to enable SSL for requests.
-
paramValidation
(Boolean|map)
—
whether input parameters should be validated against the operation description before sending the request. Defaults to true. Pass a map to enable any of the following specific validation features:
- min [Boolean] — Validates that a value meets the min
constraint. This is enabled by default when paramValidation is set
to
true
. - max [Boolean] — Validates that a value meets the max constraint.
- pattern [Boolean] — Validates that a string value matches a regular expression.
- enum [Boolean] — Validates that a string value matches one of the allowable enum values.
- min [Boolean] — Validates that a value meets the min
constraint. This is enabled by default when paramValidation is set
to
-
computeChecksums
(Boolean)
—
whether to compute checksums for payload bodies when the service accepts it (currently supported in S3 only)
-
convertResponseTypes
(Boolean)
—
whether types are converted when parsing response data. Currently only supported for JSON based services. Turning this off may improve performance on large response payloads. Defaults to
true
. -
correctClockSkew
(Boolean)
—
whether to apply a clock skew correction and retry requests that fail because of an skewed client clock. Defaults to
false
. -
s3ForcePathStyle
(Boolean)
—
whether to force path style URLs for S3 objects.
-
s3BucketEndpoint
(Boolean)
—
whether the provided endpoint addresses an individual bucket (false if it addresses the root API endpoint). Note that setting this configuration option requires an
endpoint
to be provided explicitly to the service constructor. -
s3DisableBodySigning
(Boolean)
—
whether S3 body signing should be disabled when using signature version
v4
. Body signing can only be disabled when using https. Defaults totrue
. -
s3UsEast1RegionalEndpoint
('legacy'|'regional')
—
when region is set to 'us-east-1', whether to send s3 request to global endpoints or 'us-east-1' regional endpoints. This config is only applicable to S3 client. Defaults to
legacy
-
s3UseArnRegion
(Boolean)
—
whether to override the request region with the region inferred from requested resource's ARN. Only available for S3 buckets Defaults to
true
-
retryDelayOptions
(map)
—
A set of options to configure the retry delay on retryable errors. Currently supported options are:
- base [Integer] — The base number of milliseconds to use in the exponential backoff for operation retries. Defaults to 100 ms for all services except DynamoDB, where it defaults to 50ms.
- customBackoff [function] — A custom function that accepts a
retry count and error and returns the amount of time to delay in
milliseconds. If the result is a non-zero negative value, no further
retry attempts will be made. The
base
option will be ignored if this option is supplied. The function is only called for retryable errors.
-
httpOptions
(map)
—
A set of options to pass to the low-level HTTP request. Currently supported options are:
- proxy [String] — the URL to proxy requests through
- agent [http.Agent, https.Agent] — the Agent object to perform
HTTP requests with. Used for connection pooling. Defaults to the global
agent (
http.globalAgent
) for non-SSL connections. Note that for SSL connections, a special Agent object is used in order to enable peer certificate verification. This feature is only available in the Node.js environment. - connectTimeout [Integer] — Sets the socket to timeout after
failing to establish a connection with the server after
connectTimeout
milliseconds. This timeout has no effect once a socket connection has been established. - timeout [Integer] — Sets the socket to timeout after timeout milliseconds of inactivity on the socket. Defaults to two minutes (120000).
- xhrAsync [Boolean] — Whether the SDK will send asynchronous HTTP requests. Used in the browser environment only. Set to false to send requests synchronously. Defaults to true (async on).
- xhrWithCredentials [Boolean] — Sets the "withCredentials" property of an XMLHttpRequest object. Used in the browser environment only. Defaults to false.
-
apiVersion
(String, Date)
—
a String in YYYY-MM-DD format (or a date) that represents the latest possible API version that can be used in all services (unless overridden by
apiVersions
). Specify 'latest' to use the latest possible version. -
apiVersions
(map<String, String|Date>)
—
a map of service identifiers (the lowercase service class name) with the API version to use when instantiating a service. Specify 'latest' for each individual that can use the latest available version.
-
logger
(#write, #log)
—
an object that responds to .write() (like a stream) or .log() (like the console object) in order to log information about requests
-
systemClockOffset
(Number)
—
an offset value in milliseconds to apply to all signing times. Use this to compensate for clock skew when your system may be out of sync with the service time. Note that this configuration option can only be applied to the global
AWS.config
object and cannot be overridden in service-specific configuration. Defaults to 0 milliseconds. -
signatureVersion
(String)
—
the signature version to sign requests with (overriding the API configuration). Possible values are: 'v2', 'v3', 'v4'.
-
signatureCache
(Boolean)
—
whether the signature to sign requests with (overriding the API configuration) is cached. Only applies to the signature version 'v4'. Defaults to
true
. -
dynamoDbCrc32
(Boolean)
—
whether to validate the CRC32 checksum of HTTP response bodies returned by DynamoDB. Default:
true
. -
useAccelerateEndpoint
(Boolean)
—
Whether to use the S3 Transfer Acceleration endpoint with the S3 service. Default:
false
. -
clientSideMonitoring
(Boolean)
—
whether to collect and publish this client's performance metrics of all its API requests.
-
endpointDiscoveryEnabled
(Boolean|undefined)
—
whether to call operations with endpoints given by service dynamically. Setting this
-
endpointCacheSize
(Number)
—
the size of the global cache storing endpoints from endpoint discovery operations. Once endpoint cache is created, updating this setting cannot change existing cache size. Defaults to 1000
-
hostPrefixEnabled
(Boolean)
—
whether to marshal request parameters to the prefix of hostname. Defaults to
true
. -
stsRegionalEndpoints
('legacy'|'regional')
—
whether to send sts request to global endpoints or regional endpoints. Defaults to 'legacy'.
-
useFipsEndpoint
(Boolean)
—
Enables FIPS compatible endpoints. Defaults to
false
. -
useDualstackEndpoint
(Boolean)
—
Enables IPv6 dualstack endpoint. Defaults to
false
.
Property Details
Method Details
batchExecuteStatement(params = {}, callback) ⇒ AWS.Request
This operation allows you to perform batch reads or writes on data stored in DynamoDB, using PartiQL. Each read statement in a
BatchExecuteStatement
must specify an equality condition on all key attributes. This enforces that eachSELECT
statement in a batch returns at most a single item. For more information, see Running batch operations with PartiQL for DynamoDB .Note: The entire batch must consist of either read statements or write statements, you cannot mix both in one batch.A HTTP 200 response does not mean that all statements in the BatchExecuteStatement succeeded. Error details for individual statements can be found under the Error field of the
BatchStatementResponse
for each statement.Service Reference:
Examples:
Calling the batchExecuteStatement operation
var params = { Statements: [ /* required */ { Statement: 'STRING_VALUE', /* required */ ConsistentRead: true || false, Parameters: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ], ReturnValuesOnConditionCheckFailure: ALL_OLD | NONE }, /* more items */ ], ReturnConsumedCapacity: INDEXES | TOTAL | NONE }; dynamodb.batchExecuteStatement(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
Statements
— (Array<map>
)The list of PartiQL statements representing the batch to run.
Statement
— required — (String
)A valid PartiQL statement.
Parameters
— (Array<map>
)The parameters associated with a PartiQL statement in the batch request.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsistentRead
— (Boolean
)The read consistency of the PartiQL batch request.
ReturnValuesOnConditionCheckFailure
— (String
)An optional parameter that returns the item attributes for a PartiQL batch request operation that failed a condition check.
There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
Possible values include:"ALL_OLD"
"NONE"
ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Responses
— (Array<map>
)The response to each PartiQL statement in the batch. The values of the list are ordered according to the ordering of the request statements.
Error
— (map
)The error associated with a failed PartiQL batch statement.
Code
— (String
)The error code associated with the failed PartiQL batch statement.
Possible values include:"ConditionalCheckFailed"
"ItemCollectionSizeLimitExceeded"
"RequestLimitExceeded"
"ValidationError"
"ProvisionedThroughputExceeded"
"TransactionConflict"
"ThrottlingError"
"InternalServerError"
"ResourceNotFound"
"AccessDenied"
"DuplicateItem"
Message
— (String
)The error message associated with the PartiQL batch response.
Item
— (map<map>
)The item which caused the condition check to fail. This will be set if ReturnValuesOnConditionCheckFailure is specified as
ALL_OLD
.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
TableName
— (String
)The table name associated with a failed PartiQL batch statement.
Item
— (map<map>
)A DynamoDB item associated with a BatchStatementResponse
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsumedCapacity
— (Array<map>
)The capacity units consumed by the entire operation. The values of the list are ordered according to the ordering of the statements.
TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
-
(AWS.Response)
—
Returns:
batchGetItem(params = {}, callback) ⇒ AWS.Request
The
BatchGetItem
operation returns the attributes of one or more items from one or more tables. You identify requested items by primary key.A single operation can retrieve up to 16 MB of data, which can contain as many as 100 items.
BatchGetItem
returns a partial result if the response size limit is exceeded, the table's provisioned throughput is exceeded, more than 1MB per partition is requested, or an internal processing failure occurs. If a partial result is returned, the operation returns a value forUnprocessedKeys
. You can use this value to retry the operation starting with the next item to get.If you request more than 100 items,
BatchGetItem
returns aValidationException
with the message "Too many items requested for the BatchGetItem call."For example, if you ask to retrieve 100 items, but each individual item is 300 KB in size, the system returns 52 items (so as not to exceed the 16 MB limit). It also returns an appropriate
UnprocessedKeys
value so you can get the next page of results. If desired, your application can include its own logic to assemble the pages of results into one dataset.If none of the items can be processed due to insufficient provisioned throughput on all of the tables in the request, then
BatchGetItem
returns aProvisionedThroughputExceededException
. If at least one of the items is successfully processed, thenBatchGetItem
completes successfully, while returning the keys of the unread items inUnprocessedKeys
.If DynamoDB returns any unprocessed items, you should retry the batch operation on those items. However, we strongly recommend that you use an exponential backoff algorithm. If you retry the batch operation immediately, the underlying read or write requests can still fail due to throttling on the individual tables. If you delay the batch operation using exponential backoff, the individual requests in the batch are much more likely to succeed.
For more information, see Batch Operations and Error Handling in the Amazon DynamoDB Developer Guide.
By default,
BatchGetItem
performs eventually consistent reads on every table in the request. If you want strongly consistent reads instead, you can setConsistentRead
totrue
for any or all tables.In order to minimize response latency,
BatchGetItem
may retrieve items in parallel.When designing your application, keep in mind that DynamoDB does not return items in any particular order. To help parse the response by item, include the primary key values for the items in your request in the
ProjectionExpression
parameter.If a requested item does not exist, it is not returned in the result. Requests for nonexistent items consume the minimum read capacity units according to the type of read. For more information, see Working with Tables in the Amazon DynamoDB Developer Guide.
Service Reference:
Examples:
To retrieve multiple items from a table
/* This example reads multiple items from the Music table using a batch of three GetItem requests. Only the AlbumTitle attribute is returned. */ var params = { RequestItems: { "Music": { Keys: [ { "Artist": { S: "No One You Know" }, "SongTitle": { S: "Call Me Today" } }, { "Artist": { S: "Acme Band" }, "SongTitle": { S: "Happy Day" } }, { "Artist": { S: "No One You Know" }, "SongTitle": { S: "Scared of My Shadow" } } ], ProjectionExpression: "AlbumTitle" } } }; dynamodb.batchGetItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { Responses: { "Music": [ { "AlbumTitle": { S: "Somewhat Famous" } }, { "AlbumTitle": { S: "Blue Sky Blues" } }, { "AlbumTitle": { S: "Louder Than Ever" } } ] } } */ });
Calling the batchGetItem operation
var params = { RequestItems: { /* required */ '<TableArn>': { Keys: [ /* required */ { '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ }, /* more items */ ], AttributesToGet: [ 'STRING_VALUE', /* more items */ ], ConsistentRead: true || false, ExpressionAttributeNames: { '<ExpressionAttributeNameVariable>': 'STRING_VALUE', /* '<ExpressionAttributeNameVariable>': ... */ }, ProjectionExpression: 'STRING_VALUE' }, /* '<TableArn>': ... */ }, ReturnConsumedCapacity: INDEXES | TOTAL | NONE }; dynamodb.batchGetItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
RequestItems
— (map<map>
)A map of one or more table names or table ARNs and, for each table, a map that describes one or more items to retrieve from that table. Each table name or ARN can be used only once per
BatchGetItem
request.Each element in the map of items to retrieve consists of the following:
-
ConsistentRead
- Iftrue
, a strongly consistent read is used; iffalse
(the default), an eventually consistent read is used. -
ExpressionAttributeNames
- One or more substitution tokens for attribute names in theProjectionExpression
parameter. The following are some use cases for usingExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information about expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
-
-
Keys
- An array of primary key attribute values that define specific items in the table. For each primary key, you must provide all of the key attributes. For example, with a simple primary key, you only need to provide the partition key value. For a composite key, you must provide both the partition key value and the sort key value. -
ProjectionExpression
- A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.If no attribute names are specified, then all attributes are returned. If any of the requested attributes are not found, they do not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
-
AttributesToGet
- This is a legacy parameter. UseProjectionExpression
instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.
Keys
— required — (Array<map<map>>
)The primary key attribute values that define the items and the attributes associated with the items.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
AttributesToGet
— (Array<String>
)This is a legacy parameter. Use
ProjectionExpression
instead. For more information, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide.ConsistentRead
— (Boolean
)The consistency of a read operation. If set to
true
, then a strongly consistent read is used; otherwise, an eventually consistent read is used.ProjectionExpression
— (String
)A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
ProjectionExpression
must be separated by commas.If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
ExpressionAttributeNames
— (map<String>
)One or more substitution tokens for attribute names in an expression. The following are some use cases for using
ExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
-
-
ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Responses
— (map<Array<map<map>>>
)A map of table name or table ARN to a list of items. Each object in
Responses
consists of a table name or ARN, along with a map of attribute data consisting of the data type and attribute value.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
UnprocessedKeys
— (map<map>
)A map of tables and their respective keys that were not processed with the current response. The
UnprocessedKeys
value is in the same form asRequestItems
, so the value can be provided directly to a subsequentBatchGetItem
operation. For more information, seeRequestItems
in the Request Parameters section.Each element consists of:
-
Keys
- An array of primary key attribute values that define specific items in the table. -
ProjectionExpression
- One or more attributes to be retrieved from the table or index. By default, all attributes are returned. If a requested attribute is not found, it does not appear in the result. -
ConsistentRead
- The consistency of a read operation. If set totrue
, then a strongly consistent read is used; otherwise, an eventually consistent read is used.
If there are no unprocessed keys remaining, the response contains an empty
UnprocessedKeys
map.Keys
— required — (Array<map<map>>
)The primary key attribute values that define the items and the attributes associated with the items.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
AttributesToGet
— (Array<String>
)This is a legacy parameter. Use
ProjectionExpression
instead. For more information, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide.ConsistentRead
— (Boolean
)The consistency of a read operation. If set to
true
, then a strongly consistent read is used; otherwise, an eventually consistent read is used.ProjectionExpression
— (String
)A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the
ProjectionExpression
must be separated by commas.If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
ExpressionAttributeNames
— (map<String>
)One or more substitution tokens for attribute names in an expression. The following are some use cases for using
ExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information on expression attribute names, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
-
-
ConsumedCapacity
— (Array<map>
)The read capacity units consumed by the entire
BatchGetItem
operation.Each element consists of:
-
TableName
- The table that consumed the provisioned throughput. -
CapacityUnits
- The total number of capacity units consumed.
TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
-
-
(AWS.Response)
—
Returns:
batchWriteItem(params = {}, callback) ⇒ AWS.Request
The
BatchWriteItem
operation puts or deletes multiple items in one or more tables. A single call toBatchWriteItem
can transmit up to 16MB of data over the network, consisting of up to 25 item put or delete operations. While individual items can be up to 400 KB once stored, it's important to note that an item's representation might be greater than 400KB while being sent in DynamoDB's JSON format for the API call. For more details on this distinction, see Naming Rules and Data Types.Note:BatchWriteItem
cannot update items. If you perform aBatchWriteItem
operation on an existing item, that item's values will be overwritten by the operation and it will appear like it was updated. To update items, we recommend you use theUpdateItem
action.The individual
PutItem
andDeleteItem
operations specified inBatchWriteItem
are atomic; howeverBatchWriteItem
as a whole is not. If any requested operations fail because the table's provisioned throughput is exceeded or an internal processing failure occurs, the failed operations are returned in theUnprocessedItems
response parameter. You can investigate and optionally resend the requests. Typically, you would callBatchWriteItem
in a loop. Each iteration would check for unprocessed items and submit a newBatchWriteItem
request with those unprocessed items until all items have been processed.For tables and indexes with provisioned capacity, if none of the items can be processed due to insufficient provisioned throughput on all of the tables in the request, then
BatchWriteItem
returns aProvisionedThroughputExceededException
. For all tables and indexes, if none of the items can be processed due to other throttling scenarios (such as exceeding partition level limits), thenBatchWriteItem
returns aThrottlingException
.If DynamoDB returns any unprocessed items, you should retry the batch operation on those items. However, we strongly recommend that you use an exponential backoff algorithm. If you retry the batch operation immediately, the underlying read or write requests can still fail due to throttling on the individual tables. If you delay the batch operation using exponential backoff, the individual requests in the batch are much more likely to succeed.
For more information, see Batch Operations and Error Handling in the Amazon DynamoDB Developer Guide.
With
BatchWriteItem
, you can efficiently write or delete large amounts of data, such as from Amazon EMR, or copy data from another database into DynamoDB. In order to improve performance with these large-scale operations,BatchWriteItem
does not behave in the same way as individualPutItem
andDeleteItem
calls would. For example, you cannot specify conditions on individual put and delete requests, andBatchWriteItem
does not return deleted items in the response.If you use a programming language that supports concurrency, you can use threads to write items in parallel. Your application must include the necessary logic to manage the threads. With languages that don't support threading, you must update or delete the specified items one at a time. In both situations,
BatchWriteItem
performs the specified put and delete operations in parallel, giving you the power of the thread pool approach without having to introduce complexity into your application.Parallel processing reduces latency, but each specified put and delete request consumes the same number of write capacity units whether it is processed in parallel or not. Delete operations on nonexistent items consume one write capacity unit.
If one or more of the following is true, DynamoDB rejects the entire batch write operation:
-
One or more tables specified in the
BatchWriteItem
request does not exist. -
Primary key attributes specified on an item in the request do not match those in the corresponding table's primary key schema.
-
You try to perform multiple operations on the same item in the same
BatchWriteItem
request. For example, you cannot put and delete the same item in the sameBatchWriteItem
request. -
Your request contains at least two items with identical hash and range keys (which essentially is two put operations).
-
There are more than 25 requests in the batch.
-
Any individual item in a batch exceeds 400 KB.
-
The total request size exceeds 16 MB.
-
Any individual items with keys exceeding the key length limits. For a partition key, the limit is 2048 bytes and for a sort key, the limit is 1024 bytes.
Service Reference:
Examples:
To add multiple items to a table
/* This example adds three new items to the Music table using a batch of three PutItem requests. */ var params = { RequestItems: { "Music": [ { PutRequest: { Item: { "AlbumTitle": { S: "Somewhat Famous" }, "Artist": { S: "No One You Know" }, "SongTitle": { S: "Call Me Today" } } } }, { PutRequest: { Item: { "AlbumTitle": { S: "Songs About Life" }, "Artist": { S: "Acme Band" }, "SongTitle": { S: "Happy Day" } } } }, { PutRequest: { Item: { "AlbumTitle": { S: "Blue Sky Blues" }, "Artist": { S: "No One You Know" }, "SongTitle": { S: "Scared of My Shadow" } } } } ] } }; dynamodb.batchWriteItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { } */ });
Calling the batchWriteItem operation
var params = { RequestItems: { /* required */ '<TableArn>': [ { DeleteRequest: { Key: { /* required */ '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ } }, PutRequest: { Item: { /* required */ '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ } } }, /* more items */ ], /* '<TableArn>': ... */ }, ReturnConsumedCapacity: INDEXES | TOTAL | NONE, ReturnItemCollectionMetrics: SIZE | NONE }; dynamodb.batchWriteItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
RequestItems
— (map<Array<map>>
)A map of one or more table names or table ARNs and, for each table, a list of operations to be performed (
DeleteRequest
orPutRequest
). Each element in the map consists of the following:-
DeleteRequest
- Perform aDeleteItem
operation on the specified item. The item to be deleted is identified by aKey
subelement:-
Key
- A map of primary key attribute values that uniquely identify the item. Each entry in this map consists of an attribute name and an attribute value. For each primary key, you must provide all of the key attributes. For example, with a simple primary key, you only need to provide a value for the partition key. For a composite primary key, you must provide values for both the partition key and the sort key.
-
-
PutRequest
- Perform aPutItem
operation on the specified item. The item to be put is identified by anItem
subelement:-
Item
- A map of attributes and their values. Each entry in this map consists of an attribute name and an attribute value. Attribute values must not be null; string and binary type attributes must have lengths greater than zero; and set type attributes must not be empty. Requests that contain empty values are rejected with aValidationException
exception.If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
-
PutRequest
— (map
)A request to perform a
PutItem
operation.Item
— required — (map<map>
)A map of attribute name to attribute values, representing the primary key of an item to be processed by
PutItem
. All of the table's primary key attributes must be specified, and their data types must match those of the table's key schema. If any attributes are present in the item that are part of an index key schema for the table, their types must match the index key schema.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
DeleteRequest
— (map
)A request to perform a
DeleteItem
operation.Key
— required — (map<map>
)A map of attribute name to attribute values, representing the primary key of the item to delete. All of the table's primary key attributes must be specified, and their data types must match those of the table's key schema.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
-
ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
ReturnItemCollectionMetrics
— (String
)Determines whether item collection metrics are returned. If set to
Possible values include:SIZE
, the response includes statistics about item collections, if any, that were modified during the operation are returned in the response. If set toNONE
(the default), no statistics are returned."SIZE"
"NONE"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:UnprocessedItems
— (map<Array<map>>
)A map of tables and requests against those tables that were not processed. The
UnprocessedItems
value is in the same form asRequestItems
, so you can provide this value directly to a subsequentBatchWriteItem
operation. For more information, seeRequestItems
in the Request Parameters section.Each
UnprocessedItems
entry consists of a table name or table ARN and, for that table, a list of operations to perform (DeleteRequest
orPutRequest
).-
DeleteRequest
- Perform aDeleteItem
operation on the specified item. The item to be deleted is identified by aKey
subelement:-
Key
- A map of primary key attribute values that uniquely identify the item. Each entry in this map consists of an attribute name and an attribute value.
-
-
PutRequest
- Perform aPutItem
operation on the specified item. The item to be put is identified by anItem
subelement:-
Item
- A map of attributes and their values. Each entry in this map consists of an attribute name and an attribute value. Attribute values must not be null; string and binary type attributes must have lengths greater than zero; and set type attributes must not be empty. Requests that contain empty values will be rejected with aValidationException
exception.If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
-
If there are no unprocessed items remaining, the response contains an empty
UnprocessedItems
map.PutRequest
— (map
)A request to perform a
PutItem
operation.Item
— required — (map<map>
)A map of attribute name to attribute values, representing the primary key of an item to be processed by
PutItem
. All of the table's primary key attributes must be specified, and their data types must match those of the table's key schema. If any attributes are present in the item that are part of an index key schema for the table, their types must match the index key schema.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
DeleteRequest
— (map
)A request to perform a
DeleteItem
operation.Key
— required — (map<map>
)A map of attribute name to attribute values, representing the primary key of the item to delete. All of the table's primary key attributes must be specified, and their data types must match those of the table's key schema.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
-
ItemCollectionMetrics
— (map<Array<map>>
)A list of tables that were processed by
BatchWriteItem
and, for each table, information about any item collections that were affected by individualDeleteItem
orPutItem
operations.Each entry consists of the following subelements:
-
ItemCollectionKey
- The partition key value of the item collection. This is the same as the partition key value of the item. -
SizeEstimateRangeGB
- An estimate of item collection size, expressed in GB. This is a two-element array containing a lower bound and an upper bound for the estimate. The estimate includes the size of all the items in the table, plus the size of all attributes projected into all of the local secondary indexes on the table. Use this estimate to measure whether a local secondary index is approaching its size limit.The estimate is subject to change over time; therefore, do not rely on the precision or accuracy of the estimate.
ItemCollectionKey
— (map<map>
)The partition key value of the item collection. This value is the same as the partition key value of the item.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
SizeEstimateRangeGB
— (Array<Float>
)An estimate of item collection size, in gigabytes. This value is a two-element array containing a lower bound and an upper bound for the estimate. The estimate includes the size of all the items in the table, plus the size of all attributes projected into all of the local secondary indexes on that table. Use this estimate to measure whether a local secondary index is approaching its size limit.
The estimate is subject to change over time; therefore, do not rely on the precision or accuracy of the estimate.
-
ConsumedCapacity
— (Array<map>
)The capacity units consumed by the entire
BatchWriteItem
operation.Each element consists of:
-
TableName
- The table that consumed the provisioned throughput. -
CapacityUnits
- The total number of capacity units consumed.
TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
-
-
(AWS.Response)
—
Returns:
createBackup(params = {}, callback) ⇒ AWS.Request
Creates a backup for an existing table.
Each time you create an on-demand backup, the entire table data is backed up. There is no limit to the number of on-demand backups that can be taken.
When you create an on-demand backup, a time marker of the request is cataloged, and the backup is created asynchronously, by applying all changes until the time of the request to the last full table snapshot. Backup requests are processed instantaneously and become available for restore within minutes.
You can call
CreateBackup
at a maximum rate of 50 times per second.All backups in DynamoDB work without consuming any provisioned throughput on the table.
If you submit a backup request on 2018-12-14 at 14:25:00, the backup is guaranteed to contain all data committed to the table up to 14:24:00, and data committed after 14:26:00 will not be. The backup might contain data modifications made between 14:24:00 and 14:26:00. On-demand backup does not support causal consistency.
Along with data, the following are also included on the backups:
-
Global secondary indexes (GSIs)
-
Local secondary indexes (LSIs)
-
Streams
-
Provisioned read and write capacity
Service Reference:
Examples:
Calling the createBackup operation
var params = { BackupName: 'STRING_VALUE', /* required */ TableName: 'STRING_VALUE' /* required */ }; dynamodb.createBackup(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
BackupName
— (String
)Specified name for the backup.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:BackupDetails
— (map
)Contains the details of the backup created for the table.
BackupArn
— required — (String
)ARN associated with the backup.
BackupName
— required — (String
)Name of the requested backup.
BackupSizeBytes
— (Integer
)Size of the backup in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
BackupStatus
— required — (String
)Backup can be in one of the following states: CREATING, ACTIVE, DELETED.
Possible values include:"CREATING"
"DELETED"
"AVAILABLE"
BackupType
— required — (String
)BackupType:
-
USER
- You create and manage these using the on-demand backup feature. -
SYSTEM
- If you delete a table with point-in-time recovery enabled, aSYSTEM
backup is automatically created and is retained for 35 days (at no additional cost). System backups allow you to restore the deleted table to the state it was in just before the point of deletion. -
AWS_BACKUP
- On-demand backup created by you from Backup service.
"USER"
"SYSTEM"
"AWS_BACKUP"
-
BackupCreationDateTime
— required — (Date
)Time at which the backup was created. This is the request time of the backup.
BackupExpiryDateTime
— (Date
)Time at which the automatic on-demand backup created by DynamoDB will expire. This
SYSTEM
on-demand backup expires automatically 35 days after its creation.
-
(AWS.Response)
—
Returns:
createGlobalTable(params = {}, callback) ⇒ AWS.Request
Creates a global table from an existing table. A global table creates a replication relationship between two or more DynamoDB tables with the same table name in the provided Regions.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables. Customers should use Global Tables version 2019.11.21 (Current) when possible, because it provides greater flexibility, higher efficiency, and consumes less write capacity than 2017.11.29 (Legacy).
To determine which version you're using, see Determining the global table version you are using. To update existing global tables from version 2017.11.29 (Legacy) to version 2019.11.21 (Current), see Upgrading global tables.
If you want to add a new replica table to a global table, each of the following conditions must be true:
-
The table must have the same primary key as all of the other replicas.
-
The table must have the same name as all of the other replicas.
-
The table must have DynamoDB Streams enabled, with the stream containing both the new and the old images of the item.
-
None of the replica tables in the global table can contain any data.
If global secondary indexes are specified, then the following conditions must also be met:
-
The global secondary indexes must have the same name.
-
The global secondary indexes must have the same hash key and sort key (if present).
If local secondary indexes are specified, then the following conditions must also be met:
-
The local secondary indexes must have the same name.
-
The local secondary indexes must have the same hash key and sort key (if present).
Write capacity settings should be set consistently across your replica tables and secondary indexes. DynamoDB strongly recommends enabling auto scaling to manage the write capacity settings for all of your global tables replicas and indexes.
If you prefer to manage write capacity settings manually, you should provision equal replicated write capacity units to your replica tables. You should also provision equal replicated write capacity units to matching secondary indexes across your global table.
Service Reference:
Examples:
Calling the createGlobalTable operation
var params = { GlobalTableName: 'STRING_VALUE', /* required */ ReplicationGroup: [ /* required */ { RegionName: 'STRING_VALUE' }, /* more items */ ] }; dynamodb.createGlobalTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
GlobalTableName
— (String
)The global table name.
ReplicationGroup
— (Array<map>
)The Regions where the global table needs to be created.
RegionName
— (String
)The Region where the replica needs to be created.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:GlobalTableDescription
— (map
)Contains the details of the global table.
ReplicationGroup
— (Array<map>
)The Regions where the global table has replicas.
RegionName
— (String
)The name of the Region.
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use. -
REGION_DISABLED
- The replica is inaccessible because the Amazon Web Services Region has been disabled.Note: If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table is inaccessible.Note: If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaStatusDescription
— (String
)Detailed information about the replica status.
ReplicaStatusPercentProgress
— (String
)Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.
KMSMasterKeyId
— (String
)The KMS key of the replica that will be used for KMS encryption.
ProvisionedThroughputOverride
— (map
)Replica-specific provisioned throughput. If not described, uses the source table's provisioned throughput settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput settings for the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index settings.
IndexName
— (String
)The name of the global secondary index.
ProvisionedThroughputOverride
— (map
)If not described, uses the source table GSI's read capacity settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
ReplicaInaccessibleDateTime
— (Date
)The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the
ReplicaStatus
property.ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
GlobalTableArn
— (String
)The unique identifier of the global table.
CreationDateTime
— (Date
)The creation time of the global table.
GlobalTableStatus
— (String
)The current state of the global table:
-
CREATING
- The global table is being created. -
UPDATING
- The global table is being updated. -
DELETING
- The global table is being deleted. -
ACTIVE
- The global table is ready for use.
"CREATING"
"ACTIVE"
"DELETING"
"UPDATING"
-
GlobalTableName
— (String
)The global table name.
-
(AWS.Response)
—
Returns:
createTable(params = {}, callback) ⇒ AWS.Request
The
CreateTable
operation adds a new table to your account. In an Amazon Web Services account, table names must be unique within each Region. That is, you can have two tables with same name if you create the tables in different Regions.CreateTable
is an asynchronous operation. Upon receiving aCreateTable
request, DynamoDB immediately returns a response with aTableStatus
ofCREATING
. After the table is created, DynamoDB sets theTableStatus
toACTIVE
. You can perform read and write operations only on anACTIVE
table.You can optionally define secondary indexes on the new table, as part of the
CreateTable
operation. If you want to create multiple tables with secondary indexes on them, you must create the tables sequentially. Only one table with secondary indexes can be in theCREATING
state at any given time.You can use the
DescribeTable
action to check the table status.Service Reference:
Examples:
To create a table
/* This example creates a table named Music. */ var params = { AttributeDefinitions: [ { AttributeName: "Artist", AttributeType: "S" }, { AttributeName: "SongTitle", AttributeType: "S" } ], KeySchema: [ { AttributeName: "Artist", KeyType: "HASH" }, { AttributeName: "SongTitle", KeyType: "RANGE" } ], ProvisionedThroughput: { ReadCapacityUnits: 5, WriteCapacityUnits: 5 }, TableName: "Music" }; dynamodb.createTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { TableDescription: { AttributeDefinitions: [ { AttributeName: "Artist", AttributeType: "S" }, { AttributeName: "SongTitle", AttributeType: "S" } ], CreationDateTime: <Date Representation>, ItemCount: 0, KeySchema: [ { AttributeName: "Artist", KeyType: "HASH" }, { AttributeName: "SongTitle", KeyType: "RANGE" } ], ProvisionedThroughput: { ReadCapacityUnits: 5, WriteCapacityUnits: 5 }, TableName: "Music", TableSizeBytes: 0, TableStatus: "CREATING" } } */ });
Calling the createTable operation
var params = { AttributeDefinitions: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ AttributeType: S | N | B /* required */ }, /* more items */ ], KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], TableName: 'STRING_VALUE', /* required */ BillingMode: PROVISIONED | PAY_PER_REQUEST, DeletionProtectionEnabled: true || false, GlobalSecondaryIndexes: [ { IndexName: 'STRING_VALUE', /* required */ KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], Projection: { /* required */ NonKeyAttributes: [ 'STRING_VALUE', /* more items */ ], ProjectionType: ALL | KEYS_ONLY | INCLUDE }, OnDemandThroughput: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughput: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ } }, /* more items */ ], LocalSecondaryIndexes: [ { IndexName: 'STRING_VALUE', /* required */ KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], Projection: { /* required */ NonKeyAttributes: [ 'STRING_VALUE', /* more items */ ], ProjectionType: ALL | KEYS_ONLY | INCLUDE } }, /* more items */ ], OnDemandThroughput: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughput: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ }, ResourcePolicy: 'STRING_VALUE', SSESpecification: { Enabled: true || false, KMSMasterKeyId: 'STRING_VALUE', SSEType: AES256 | KMS }, StreamSpecification: { StreamEnabled: true || false, /* required */ StreamViewType: NEW_IMAGE | OLD_IMAGE | NEW_AND_OLD_IMAGES | KEYS_ONLY }, TableClass: STANDARD | STANDARD_INFREQUENT_ACCESS, Tags: [ { Key: 'STRING_VALUE', /* required */ Value: 'STRING_VALUE' /* required */ }, /* more items */ ] }; dynamodb.createTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
AttributeDefinitions
— (Array<map>
)An array of attributes that describe the key schema for the table and indexes.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
TableName
— (String
)The name of the table to create. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
KeySchema
— (Array<map>
)Specifies the attributes that make up the primary key for a table or an index. The attributes in
KeySchema
must also be defined in theAttributeDefinitions
array. For more information, see Data Model in the Amazon DynamoDB Developer Guide.Each
KeySchemaElement
in the array is composed of:-
AttributeName
- The name of this key attribute. -
KeyType
- The role that the key attribute will assume:-
HASH
- partition key -
RANGE
- sort key
-
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from the DynamoDB usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.For a simple primary key (partition key), you must provide exactly one element with a
KeyType
ofHASH
.For a composite primary key (partition key and sort key), you must provide exactly two elements, in this order: The first element must have a
KeyType
ofHASH
, and the second element must have aKeyType
ofRANGE
.For more information, see Working with Tables in the Amazon DynamoDB Developer Guide.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
LocalSecondaryIndexes
— (Array<map>
)One or more local secondary indexes (the maximum is 5) to be created on the table. Each index is scoped to a given partition key value. There is a 10 GB size limit per partition key value; otherwise, the size of a local secondary index is unconstrained.
Each local secondary index in the array includes the following:
-
IndexName
- The name of the local secondary index. Must be unique only for this table. -
KeySchema
- Specifies the key schema for the local secondary index. The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- Only the specified table attributes are projected into the index. The list of projected attributes is inNonKeyAttributes
. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
IndexName
— required — (String
)The name of the local secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the local secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
GlobalSecondaryIndexes
— (Array<map>
)One or more global secondary indexes (the maximum is 20) to be created on the table. Each global secondary index in the array includes the following:
-
IndexName
- The name of the global secondary index. Must be unique only for this table. -
KeySchema
- Specifies the key schema for the global secondary index. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- Only the specified table attributes are projected into the index. The list of projected attributes is inNonKeyAttributes
. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
ProvisionedThroughput
- The provisioned throughput settings for the global secondary index, consisting of read and write capacity units.
IndexName
— required — (String
)The name of the global secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- We recommend usingPROVISIONED
for predictable workloads.PROVISIONED
sets the billing mode to Provisioned capacity mode. -
PAY_PER_REQUEST
- We recommend usingPAY_PER_REQUEST
for unpredictable workloads.PAY_PER_REQUEST
sets the billing mode to On-demand capacity mode.
"PROVISIONED"
"PAY_PER_REQUEST"
-
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for a specified table or index. The settings can be modified using the
UpdateTable
operation.If you set BillingMode as
PROVISIONED
, you must specify this property. If you set BillingMode asPAY_PER_REQUEST
, you cannot specify this property.For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
StreamSpecification
— (map
)The settings for DynamoDB Streams on the table. These settings consist of:
-
StreamEnabled
- Indicates whether DynamoDB Streams is to be enabled (true) or disabled (false). -
StreamViewType
- When an item in the table is modified,StreamViewType
determines what information is written to the table's stream. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
-
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
-
SSESpecification
— (map
)Represents the settings used to enable server-side encryption.
Enabled
— (Boolean
)Indicates whether server-side encryption is done using an Amazon Web Services managed key or an Amazon Web Services owned key. If enabled (true), server-side encryption type is set to
KMS
and an Amazon Web Services managed key is used (KMS charges apply). If disabled (false) or not specified, server-side encryption is set to Amazon Web Services owned key.SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyId
— (String
)The KMS key that should be used for the KMS encryption. To specify a key, use its key ID, Amazon Resource Name (ARN), alias name, or alias ARN. Note that you should only provide this parameter if the key is different from the default DynamoDB key
alias/aws/dynamodb
.
Tags
— (Array<map>
)A list of key-value pairs to label the table. For more information, see Tagging for DynamoDB.
Key
— required — (String
)The key of the tag. Tag keys are case sensitive. Each DynamoDB table can only have up to one tag with the same key. If you try to add an existing tag (same key), the existing tag value will be updated to the new value.
Value
— required — (String
)The value of the tag. Tag values are case-sensitive and can be null.
TableClass
— (String
)The table class of the new table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
DeletionProtectionEnabled
— (Boolean
)Indicates whether deletion protection is to be enabled (true) or disabled (false) on the table.
ResourcePolicy
— (String
)An Amazon Web Services resource-based policy document in JSON format that will be attached to the table.
When you attach a resource-based policy while creating a table, the policy application is strongly consistent.
The maximum size supported for a resource-based policy document is 20 KB. DynamoDB counts whitespaces when calculating the size of a policy against this limit. For a full list of all considerations that apply for resource-based policies, see Resource-based policy considerations.
Note: You need to specify theCreateTable
andPutResourcePolicy
IAM actions for authorizing a user to create a table with a resource-based policy.OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified table in on-demand capacity mode. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableDescription
— (map
)Represents the properties of the table.
AttributeDefinitions
— (Array<map>
)An array of
AttributeDefinition
objects. Each of these objects describes one attribute in the table and index key schema.Each
AttributeDefinition
object in this array is composed of:-
AttributeName
- The name of the attribute. -
AttributeType
- The data type for the attribute.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
-
TableName
— (String
)The name of the table.
KeySchema
— (Array<map>
)The primary key structure for the table. Each
KeySchemaElement
consists of:-
AttributeName
- The name of the attribute. -
KeyType
- The role of the attribute:-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value. -
For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
TableStatus
— (String
)The current state of the table:
-
CREATING
- The table is being created. -
UPDATING
- The table/index configuration is being updated. The table/index remains available for data operations whenUPDATING
. -
DELETING
- The table is being deleted. -
ACTIVE
- The table is ready for use. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table in inaccessible. Table operations may fail due to failure to use the KMS key. DynamoDB will initiate the table archival process when a table's KMS key remains inaccessible for more than seven days. -
ARCHIVING
- The table is being archived. Operations are not allowed until archival is complete. -
ARCHIVED
- The table has been archived. See the ArchivalReason for more information.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
"ARCHIVING"
"ARCHIVED"
-
CreationDateTime
— (Date
)The date and time when the table was created, in UNIX epoch time format.
ProvisionedThroughput
— (map
)The provisioned throughput settings for the table, consisting of read and write capacity units, along with data about increases and decreases.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
TableSizeBytes
— (Integer
)The total size of the specified table, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified table. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
TableArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the table.
TableId
— (String
)Unique identifier for the table for which the backup was created.
BillingModeSummary
— (map
)Contains the details for the read/write capacity mode.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
LastUpdateToPayPerRequestDateTime
— (Date
)Represents the time when
PAY_PER_REQUEST
was last set as the read/write capacity mode.
LocalSecondaryIndexes
— (Array<map>
)Represents one or more local secondary indexes on the table. Each index is scoped to a given partition key value. Tables with one or more local secondary indexes are subject to an item collection size limit, where the amount of data within a given item collection cannot exceed 10 GB. Each element is composed of:
-
IndexName
- The name of the local secondary index. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- Only the specified table attributes are projected into the index. The list of projected attributes is inNonKeyAttributes
. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
IndexSizeBytes
- Represents the total size of the index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
ItemCount
- Represents the number of items in the index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)Represents the name of the local secondary index.
KeySchema
— (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
-
GlobalSecondaryIndexes
— (Array<map>
)The global secondary indexes, if any, on the table. Each index is scoped to a given partition key value. Each element is composed of:
-
Backfilling
- If true, then the index is currently in the backfilling phase. Backfilling occurs only when a new global secondary index is added to the table. It is the process by which DynamoDB populates the new index with data from the table. (This attribute does not appear for indexes that were created during aCreateTable
operation.)You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false. (This attribute does not appear for indexes that were created during aCreateTable
operation.) -
IndexName
- The name of the global secondary index. -
IndexSizeBytes
- The total size of the global secondary index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
IndexStatus
- The current status of the global secondary index:-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
-
-
ItemCount
- The number of items in the global secondary index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
ProvisionedThroughput
- The provisioned throughput settings for the global secondary index, consisting of read and write capacity units, along with data about increases and decreases.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)The name of the global secondary index.
KeySchema
— (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexStatus
— (String
)The current state of the global secondary index:
-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
-
Backfilling
— (Boolean
)Indicates whether the index is currently backfilling. Backfilling is the process of reading items from the table and determining whether they can be added to the index. (Not all items will qualify: For example, a partition key cannot have any duplicate values.) If an item can be added to the index, DynamoDB will do so. After all items have been processed, the backfilling operation is complete and
Backfilling
is false.You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false.Note: For indexes that were created during aCreateTable
operation, theBackfilling
attribute does not appear in theDescribeTable
output.ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
StreamSpecification
— (map
)The current DynamoDB Streams configuration for the table.
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
LatestStreamLabel
— (String
)A timestamp, in ISO 8601 format, for this stream.
Note that
LatestStreamLabel
is not a unique identifier for the stream, because it is possible that a stream from another table might have the same timestamp. However, the combination of the following three elements is guaranteed to be unique:-
Amazon Web Services customer ID
-
Table name
-
StreamLabel
-
LatestStreamArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the latest stream for this table.
GlobalTableVersion
— (String
)Represents the version of global tables in use, if the table is replicated across Amazon Web Services Regions.
Replicas
— (Array<map>
)Represents replicas of the table.
RegionName
— (String
)The name of the Region.
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use. -
REGION_DISABLED
- The replica is inaccessible because the Amazon Web Services Region has been disabled.Note: If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table is inaccessible.Note: If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaStatusDescription
— (String
)Detailed information about the replica status.
ReplicaStatusPercentProgress
— (String
)Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.
KMSMasterKeyId
— (String
)The KMS key of the replica that will be used for KMS encryption.
ProvisionedThroughputOverride
— (map
)Replica-specific provisioned throughput. If not described, uses the source table's provisioned throughput settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput settings for the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index settings.
IndexName
— (String
)The name of the global secondary index.
ProvisionedThroughputOverride
— (map
)If not described, uses the source table GSI's read capacity settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
ReplicaInaccessibleDateTime
— (Date
)The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the
ReplicaStatus
property.ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
RestoreSummary
— (map
)Contains details for the restore.
SourceBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup from which the table was restored.
SourceTableArn
— (String
)The ARN of the source table of the backup that is being restored.
RestoreDateTime
— required — (Date
)Point in time or source backup time.
RestoreInProgress
— required — (Boolean
)Indicates if a restore is in progress or not.
SSEDescription
— (map
)The description of the server-side encryption status on the specified table.
Status
— (String
)Represents the current state of server-side encryption. The only supported values are:
-
ENABLED
- Server-side encryption is enabled. -
UPDATING
- Server-side encryption is being updated.
"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"UPDATING"
-
SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyArn
— (String
)The KMS key ARN used for the KMS encryption.
InaccessibleEncryptionDateTime
— (Date
)Indicates the time, in UNIX epoch date format, when DynamoDB detected that the table's KMS key was inaccessible. This attribute will automatically be cleared when DynamoDB detects that the table's KMS key is accessible again. DynamoDB will initiate the table archival process when table's KMS key remains inaccessible for more than seven days from this date.
ArchivalSummary
— (map
)Contains information about the table archive.
ArchivalDateTime
— (Date
)The date and time when table archival was initiated by DynamoDB, in UNIX epoch time format.
ArchivalReason
— (String
)The reason DynamoDB archived the table. Currently, the only possible value is:
-
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The table was archived due to the table's KMS key being inaccessible for more than seven days. An On-Demand backup was created at the archival time.
-
ArchivalBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup the table was archived to, when applicable in the archival reason. If you wish to restore this backup to the same table name, you will need to delete the original table.
TableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
DeletionProtectionEnabled
— (Boolean
)Indicates whether deletion protection is enabled (true) or disabled (false) on the table.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
(AWS.Response)
—
Returns:
deleteBackup(params = {}, callback) ⇒ AWS.Request
Deletes an existing backup of a table.
You can call
DeleteBackup
at a maximum rate of 10 times per second.Service Reference:
Examples:
Calling the deleteBackup operation
var params = { BackupArn: 'STRING_VALUE' /* required */ }; dynamodb.deleteBackup(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
BackupArn
— (String
)The ARN associated with the backup.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:BackupDescription
— (map
)Contains the description of the backup created for the table.
BackupDetails
— (map
)Contains the details of the backup created for the table.
BackupArn
— required — (String
)ARN associated with the backup.
BackupName
— required — (String
)Name of the requested backup.
BackupSizeBytes
— (Integer
)Size of the backup in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
BackupStatus
— required — (String
)Backup can be in one of the following states: CREATING, ACTIVE, DELETED.
Possible values include:"CREATING"
"DELETED"
"AVAILABLE"
BackupType
— required — (String
)BackupType:
-
USER
- You create and manage these using the on-demand backup feature. -
SYSTEM
- If you delete a table with point-in-time recovery enabled, aSYSTEM
backup is automatically created and is retained for 35 days (at no additional cost). System backups allow you to restore the deleted table to the state it was in just before the point of deletion. -
AWS_BACKUP
- On-demand backup created by you from Backup service.
"USER"
"SYSTEM"
"AWS_BACKUP"
-
BackupCreationDateTime
— required — (Date
)Time at which the backup was created. This is the request time of the backup.
BackupExpiryDateTime
— (Date
)Time at which the automatic on-demand backup created by DynamoDB will expire. This
SYSTEM
on-demand backup expires automatically 35 days after its creation.
SourceTableDetails
— (map
)Contains the details of the table when the backup was created.
TableName
— required — (String
)The name of the table for which the backup was created.
TableId
— required — (String
)Unique identifier for the table for which the backup was created.
TableArn
— (String
)ARN of the table for which backup was created.
TableSizeBytes
— (Integer
)Size of the table in bytes. Note that this is an approximate value.
KeySchema
— required — (Array<map>
)Schema of the table.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
TableCreationDateTime
— required — (Date
)Time when the source table was created.
ProvisionedThroughput
— required — (map
)Read IOPs and Write IOPS on the table when the backup was created.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
ItemCount
— (Integer
)Number of items in the table. Note that this is an approximate value.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
SourceTableFeatureDetails
— (map
)Contains the details of the features enabled on the table when the backup was created. For example, LSIs, GSIs, streams, TTL.
LocalSecondaryIndexes
— (Array<map>
)Represents the LSI properties for the table when the backup was created. It includes the IndexName, KeySchema and Projection for the LSIs on the table at the time of backup.
IndexName
— (String
)Represents the name of the local secondary index.
KeySchema
— (Array<map>
)The complete key schema for a local secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
GlobalSecondaryIndexes
— (Array<map>
)Represents the GSI properties for the table when the backup was created. It includes the IndexName, KeySchema, Projection, and ProvisionedThroughput for the GSIs on the table at the time of backup.
IndexName
— (String
)The name of the global secondary index.
KeySchema
— (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
StreamDescription
— (map
)Stream settings on the table when the backup was created.
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
TimeToLiveDescription
— (map
)Time to Live settings on the table when the backup was created.
TimeToLiveStatus
— (String
)The TTL status for the table.
Possible values include:"ENABLING"
"DISABLING"
"ENABLED"
"DISABLED"
AttributeName
— (String
)The name of the TTL attribute for items in the table.
SSEDescription
— (map
)The description of the server-side encryption status on the table when the backup was created.
Status
— (String
)Represents the current state of server-side encryption. The only supported values are:
-
ENABLED
- Server-side encryption is enabled. -
UPDATING
- Server-side encryption is being updated.
"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"UPDATING"
-
SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyArn
— (String
)The KMS key ARN used for the KMS encryption.
InaccessibleEncryptionDateTime
— (Date
)Indicates the time, in UNIX epoch date format, when DynamoDB detected that the table's KMS key was inaccessible. This attribute will automatically be cleared when DynamoDB detects that the table's KMS key is accessible again. DynamoDB will initiate the table archival process when table's KMS key remains inaccessible for more than seven days from this date.
-
(AWS.Response)
—
Returns:
deleteItem(params = {}, callback) ⇒ AWS.Request
Deletes a single item in a table by primary key. You can perform a conditional delete operation that deletes the item if it exists, or if it has an expected attribute value.
In addition to deleting an item, you can also return the item's attribute values in the same operation, using the
ReturnValues
parameter.Unless you specify conditions, the
DeleteItem
is an idempotent operation; running it multiple times on the same item or attribute does not result in an error response.Conditional deletes are useful for deleting items only if specific conditions are met. If those conditions are met, DynamoDB performs the delete. Otherwise, the item is not deleted.
Service Reference:
Examples:
To delete an item
/* This example deletes an item from the Music table. */ var params = { Key: { "Artist": { S: "No One You Know" }, "SongTitle": { S: "Scared of My Shadow" } }, TableName: "Music" }; dynamodb.deleteItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { ConsumedCapacity: { CapacityUnits: 1, TableName: "Music" } } */ });
Calling the deleteItem operation
var params = { Key: { /* required */ '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ }, TableName: 'STRING_VALUE', /* required */ ConditionExpression: 'STRING_VALUE', ConditionalOperator: AND | OR, Expected: { '<AttributeName>': { AttributeValueList: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ], ComparisonOperator: EQ | NE | IN | LE | LT | GE | GT | BETWEEN | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH, Exists: true || false, Value: { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] } }, /* '<AttributeName>': ... */ }, ExpressionAttributeNames: { '<ExpressionAttributeNameVariable>': 'STRING_VALUE', /* '<ExpressionAttributeNameVariable>': ... */ }, ExpressionAttributeValues: { '<ExpressionAttributeValueVariable>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<ExpressionAttributeValueVariable>': ... */ }, ReturnConsumedCapacity: INDEXES | TOTAL | NONE, ReturnItemCollectionMetrics: SIZE | NONE, ReturnValues: NONE | ALL_OLD | UPDATED_OLD | ALL_NEW | UPDATED_NEW, ReturnValuesOnConditionCheckFailure: ALL_OLD | NONE }; dynamodb.deleteItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table from which to delete the item. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Key
— (map<map>
)A map of attribute names to
AttributeValue
objects, representing the primary key of the item to delete.For the primary key, you must provide all of the key attributes. For example, with a simple primary key, you only need to provide a value for the partition key. For a composite primary key, you must provide values for both the partition key and the sort key.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
Expected
— (map<map>
)This is a legacy parameter. Use
ConditionExpression
instead. For more information, see Expected in the Amazon DynamoDB Developer Guide.Value
— (map
)Represents the data for the expected attribute.
Each attribute value is described as a name-value pair. The name is the data type, and the value is the data itself.
For more information, see Data Types in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
Exists
— (Boolean
)Causes DynamoDB to evaluate the value before attempting a conditional operation:
-
If
Exists
istrue
, DynamoDB will check to see if that attribute value already exists in the table. If it is found, then the operation succeeds. If it is not found, the operation fails with aConditionCheckFailedException
. -
If
Exists
isfalse
, DynamoDB assumes that the attribute value does not exist in the table. If in fact the value does not exist, then the assumption is valid and the operation succeeds. If the value is found, despite the assumption that it does not exist, the operation fails with aConditionCheckFailedException
.
The default setting for
Exists
istrue
. If you supply aValue
all by itself, DynamoDB assumes the attribute exists: You don't have to setExists
totrue
, because it is implied.DynamoDB returns a
ValidationException
if:-
Exists
istrue
but there is noValue
to check. (You expect a value to exist, but don't specify what that value is.) -
Exists
isfalse
but you also provide aValue
. (You cannot expect an attribute to have a value, while also expecting it not to exist.)
-
ComparisonOperator
— (String
)A comparator for evaluating attributes in the
AttributeValueList
. For example, equals, greater than, less than, etc.The following comparison operators are available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
The following are descriptions of each comparison operator.
-
EQ
: Equal.EQ
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
NE
: Not equal.NE
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
LE
: Less than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
LT
: Less than.AttributeValueList
can contain only oneAttributeValue
of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GE
: Greater than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GT
: Greater than.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
NOT_NULL
: The attribute exists.NOT_NULL
is supported for all data types, including lists and maps.Note: This operator tests for the existence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNOT_NULL
, the result is a Booleantrue
. This result is because the attribute "a
" exists; its data type is not relevant to theNOT_NULL
comparison operator. -
NULL
: The attribute does not exist.NULL
is supported for all data types, including lists and maps.Note: This operator tests for the nonexistence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNULL
, the result is a Booleanfalse
. This is because the attribute "a
" exists; its data type is not relevant to theNULL
comparison operator. -
CONTAINS
: Checks for a subsequence, or value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is of type String, then the operator checks for a substring match. If the target attribute of the comparison is of type Binary, then the operator looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it finds an exact match with any member of the set.CONTAINS is supported for lists: When evaluating "
a CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
NOT_CONTAINS
: Checks for absence of a subsequence, or absence of a value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is a String, then the operator checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operator checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it does not find an exact match with any member of the set.NOT_CONTAINS is supported for lists: When evaluating "
a NOT CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
BEGINS_WITH
: Checks for a prefix.AttributeValueList
can contain only oneAttributeValue
of type String or Binary (not a Number or a set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type). -
IN
: Checks for matching elements in a list.AttributeValueList
can contain one or moreAttributeValue
elements of type String, Number, or Binary. These attributes are compared against an existing attribute of an item. If any elements of the input are equal to the item attribute, the expression evaluates to true. -
BETWEEN
: Greater than or equal to the first value, and less than or equal to the second value.AttributeValueList
must contain twoAttributeValue
elements of the same type, either String, Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not compare to{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
"EQ"
"NE"
"IN"
"LE"
"LT"
"GE"
"GT"
"BETWEEN"
"NOT_NULL"
"NULL"
"CONTAINS"
"NOT_CONTAINS"
"BEGINS_WITH"
-
AttributeValueList
— (Array<map>
)One or more values to evaluate against the supplied attribute. The number of values in the list depends on the
ComparisonOperator
being used.For type Number, value comparisons are numeric.
String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example,
a
is greater thanA
, anda
is greater thanB
. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
For information on specifying data types in JSON, see JSON Data Format in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConditionalOperator
— (String
)This is a legacy parameter. Use
Possible values include:ConditionExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide."AND"
"OR"
ReturnValues
— (String
)Use
ReturnValues
if you want to get the item attributes as they appeared before they were deleted. ForDeleteItem
, the valid values are:-
NONE
- IfReturnValues
is not specified, or if its value isNONE
, then nothing is returned. (This setting is the default forReturnValues
.) -
ALL_OLD
- The content of the old item is returned.
There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
Note: ThePossible values include:ReturnValues
parameter is used by several DynamoDB operations; however,DeleteItem
does not recognize any values other thanNONE
orALL_OLD
."NONE"
"ALL_OLD"
"UPDATED_OLD"
"ALL_NEW"
"UPDATED_NEW"
-
ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
ReturnItemCollectionMetrics
— (String
)Determines whether item collection metrics are returned. If set to
Possible values include:SIZE
, the response includes statistics about item collections, if any, that were modified during the operation are returned in the response. If set toNONE
(the default), no statistics are returned."SIZE"
"NONE"
ConditionExpression
— (String
)A condition that must be satisfied in order for a conditional
DeleteItem
to succeed.An expression can contain any of the following:
-
Functions:
attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size
These function names are case-sensitive.
-
Comparison operators:
= | <> | < | > | <= | >= | BETWEEN | IN
-
Logical operators:
AND | OR | NOT
For more information about condition expressions, see Condition Expressions in the Amazon DynamoDB Developer Guide.
-
ExpressionAttributeNames
— (map<String>
)One or more substitution tokens for attribute names in an expression. The following are some use cases for using
ExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information on expression attribute names, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
-
ExpressionAttributeValues
— (map<map>
)One or more values that can be substituted in an expression.
Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
Available | Backordered | Discontinued
You would first need to specify
ExpressionAttributeValues
as follows:{ ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
You could then use these values in an expression, such as this:
ProductStatus IN (:avail, :back, :disc)
For more information on expression attribute values, see Condition Expressions in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ReturnValuesOnConditionCheckFailure
— (String
)An optional parameter that returns the item attributes for a
DeleteItem
operation that failed a condition check.There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
Possible values include:"ALL_OLD"
"NONE"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Attributes
— (map<map>
)A map of attribute names to
AttributeValue
objects, representing the item as it appeared before theDeleteItem
operation. This map appears in the response only ifReturnValues
was specified asALL_OLD
in the request.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsumedCapacity
— (map
)The capacity units consumed by the
DeleteItem
operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation.ConsumedCapacity
is only returned if theReturnConsumedCapacity
parameter was specified. For more information, see Provisioned capacity mode in the Amazon DynamoDB Developer Guide.TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
ItemCollectionMetrics
— (map
)Information about item collections, if any, that were affected by the
DeleteItem
operation.ItemCollectionMetrics
is only returned if theReturnItemCollectionMetrics
parameter was specified. If the table does not have any local secondary indexes, this information is not returned in the response.Each
ItemCollectionMetrics
element consists of:-
ItemCollectionKey
- The partition key value of the item collection. This is the same as the partition key value of the item itself. -
SizeEstimateRangeGB
- An estimate of item collection size, in gigabytes. This value is a two-element array containing a lower bound and an upper bound for the estimate. The estimate includes the size of all the items in the table, plus the size of all attributes projected into all of the local secondary indexes on that table. Use this estimate to measure whether a local secondary index is approaching its size limit.The estimate is subject to change over time; therefore, do not rely on the precision or accuracy of the estimate.
ItemCollectionKey
— (map<map>
)The partition key value of the item collection. This value is the same as the partition key value of the item.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
SizeEstimateRangeGB
— (Array<Float>
)An estimate of item collection size, in gigabytes. This value is a two-element array containing a lower bound and an upper bound for the estimate. The estimate includes the size of all the items in the table, plus the size of all attributes projected into all of the local secondary indexes on that table. Use this estimate to measure whether a local secondary index is approaching its size limit.
The estimate is subject to change over time; therefore, do not rely on the precision or accuracy of the estimate.
-
-
(AWS.Response)
—
Returns:
deleteResourcePolicy(params = {}, callback) ⇒ AWS.Request
Deletes the resource-based policy attached to the resource, which can be a table or stream.
DeleteResourcePolicy
is an idempotent operation; running it multiple times on the same resource doesn't result in an error response, unless you specify anExpectedRevisionId
, which will then return aPolicyNotFoundException
.To make sure that you don't inadvertently lock yourself out of your own resources, the root principal in your Amazon Web Services account can perform
DeleteResourcePolicy
requests, even if your resource-based policy explicitly denies the root principal's access.Note:DeleteResourcePolicy
is an asynchronous operation. If you issue aGetResourcePolicy
request immediately after running theDeleteResourcePolicy
request, DynamoDB might still return the deleted policy. This is because the policy for your resource might not have been deleted yet. Wait for a few seconds, and then try theGetResourcePolicy
request again.Service Reference:
Examples:
Calling the deleteResourcePolicy operation
var params = { ResourceArn: 'STRING_VALUE', /* required */ ExpectedRevisionId: 'STRING_VALUE' }; dynamodb.deleteResourcePolicy(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ResourceArn
— (String
)The Amazon Resource Name (ARN) of the DynamoDB resource from which the policy will be removed. The resources you can specify include tables and streams. If you remove the policy of a table, it will also remove the permissions for the table's indexes defined in that policy document. This is because index permissions are defined in the table's policy.
ExpectedRevisionId
— (String
)A string value that you can use to conditionally delete your policy. When you provide an expected revision ID, if the revision ID of the existing policy on the resource doesn't match or if there's no policy attached to the resource, the request will fail and return a
PolicyNotFoundException
.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:RevisionId
— (String
)A unique string that represents the revision ID of the policy. If you're comparing revision IDs, make sure to always use string comparison logic.
This value will be empty if you make a request against a resource without a policy.
-
(AWS.Response)
—
Returns:
deleteTable(params = {}, callback) ⇒ AWS.Request
The
DeleteTable
operation deletes a table and all of its items. After aDeleteTable
request, the specified table is in theDELETING
state until DynamoDB completes the deletion. If the table is in theACTIVE
state, you can delete it. If a table is inCREATING
orUPDATING
states, then DynamoDB returns aResourceInUseException
. If the specified table does not exist, DynamoDB returns aResourceNotFoundException
. If table is already in theDELETING
state, no error is returned.For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version).
Note: DynamoDB might continue to accept data read and write operations, such asGetItem
andPutItem
, on a table in theDELETING
state until the table deletion is complete. For the full list of table states, see TableStatus.When you delete a table, any indexes on that table are also deleted.
If you have DynamoDB Streams enabled on the table, then the corresponding stream on that table goes into the
DISABLED
state, and the stream is automatically deleted after 24 hours.Use the
DescribeTable
action to check the status of the table.Service Reference:
Examples:
To delete a table
/* This example deletes the Music table. */ var params = { TableName: "Music" }; dynamodb.deleteTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { TableDescription: { ItemCount: 0, ProvisionedThroughput: { NumberOfDecreasesToday: 1, ReadCapacityUnits: 5, WriteCapacityUnits: 5 }, TableName: "Music", TableSizeBytes: 0, TableStatus: "DELETING" } } */ });
Calling the deleteTable operation
var params = { TableName: 'STRING_VALUE' /* required */ }; dynamodb.deleteTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table to delete. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableDescription
— (map
)Represents the properties of a table.
AttributeDefinitions
— (Array<map>
)An array of
AttributeDefinition
objects. Each of these objects describes one attribute in the table and index key schema.Each
AttributeDefinition
object in this array is composed of:-
AttributeName
- The name of the attribute. -
AttributeType
- The data type for the attribute.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
-
TableName
— (String
)The name of the table.
KeySchema
— (Array<map>
)The primary key structure for the table. Each
KeySchemaElement
consists of:-
AttributeName
- The name of the attribute. -
KeyType
- The role of the attribute:-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value. -
For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
TableStatus
— (String
)The current state of the table:
-
CREATING
- The table is being created. -
UPDATING
- The table/index configuration is being updated. The table/index remains available for data operations whenUPDATING
. -
DELETING
- The table is being deleted. -
ACTIVE
- The table is ready for use. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table in inaccessible. Table operations may fail due to failure to use the KMS key. DynamoDB will initiate the table archival process when a table's KMS key remains inaccessible for more than seven days. -
ARCHIVING
- The table is being archived. Operations are not allowed until archival is complete. -
ARCHIVED
- The table has been archived. See the ArchivalReason for more information.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
"ARCHIVING"
"ARCHIVED"
-
CreationDateTime
— (Date
)The date and time when the table was created, in UNIX epoch time format.
ProvisionedThroughput
— (map
)The provisioned throughput settings for the table, consisting of read and write capacity units, along with data about increases and decreases.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
TableSizeBytes
— (Integer
)The total size of the specified table, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified table. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
TableArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the table.
TableId
— (String
)Unique identifier for the table for which the backup was created.
BillingModeSummary
— (map
)Contains the details for the read/write capacity mode.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
LastUpdateToPayPerRequestDateTime
— (Date
)Represents the time when
PAY_PER_REQUEST
was last set as the read/write capacity mode.
LocalSecondaryIndexes
— (Array<map>
)Represents one or more local secondary indexes on the table. Each index is scoped to a given partition key value. Tables with one or more local secondary indexes are subject to an item collection size limit, where the amount of data within a given item collection cannot exceed 10 GB. Each element is composed of:
-
IndexName
- The name of the local secondary index. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- Only the specified table attributes are projected into the index. The list of projected attributes is inNonKeyAttributes
. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
IndexSizeBytes
- Represents the total size of the index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
ItemCount
- Represents the number of items in the index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)Represents the name of the local secondary index.
KeySchema
— (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
-
GlobalSecondaryIndexes
— (Array<map>
)The global secondary indexes, if any, on the table. Each index is scoped to a given partition key value. Each element is composed of:
-
Backfilling
- If true, then the index is currently in the backfilling phase. Backfilling occurs only when a new global secondary index is added to the table. It is the process by which DynamoDB populates the new index with data from the table. (This attribute does not appear for indexes that were created during aCreateTable
operation.)You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false. (This attribute does not appear for indexes that were created during aCreateTable
operation.) -
IndexName
- The name of the global secondary index. -
IndexSizeBytes
- The total size of the global secondary index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
IndexStatus
- The current status of the global secondary index:-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
-
-
ItemCount
- The number of items in the global secondary index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
ProvisionedThroughput
- The provisioned throughput settings for the global secondary index, consisting of read and write capacity units, along with data about increases and decreases.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)The name of the global secondary index.
KeySchema
— (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexStatus
— (String
)The current state of the global secondary index:
-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
-
Backfilling
— (Boolean
)Indicates whether the index is currently backfilling. Backfilling is the process of reading items from the table and determining whether they can be added to the index. (Not all items will qualify: For example, a partition key cannot have any duplicate values.) If an item can be added to the index, DynamoDB will do so. After all items have been processed, the backfilling operation is complete and
Backfilling
is false.You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false.Note: For indexes that were created during aCreateTable
operation, theBackfilling
attribute does not appear in theDescribeTable
output.ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
StreamSpecification
— (map
)The current DynamoDB Streams configuration for the table.
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
LatestStreamLabel
— (String
)A timestamp, in ISO 8601 format, for this stream.
Note that
LatestStreamLabel
is not a unique identifier for the stream, because it is possible that a stream from another table might have the same timestamp. However, the combination of the following three elements is guaranteed to be unique:-
Amazon Web Services customer ID
-
Table name
-
StreamLabel
-
LatestStreamArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the latest stream for this table.
GlobalTableVersion
— (String
)Represents the version of global tables in use, if the table is replicated across Amazon Web Services Regions.
Replicas
— (Array<map>
)Represents replicas of the table.
RegionName
— (String
)The name of the Region.
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use. -
REGION_DISABLED
- The replica is inaccessible because the Amazon Web Services Region has been disabled.Note: If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table is inaccessible.Note: If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaStatusDescription
— (String
)Detailed information about the replica status.
ReplicaStatusPercentProgress
— (String
)Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.
KMSMasterKeyId
— (String
)The KMS key of the replica that will be used for KMS encryption.
ProvisionedThroughputOverride
— (map
)Replica-specific provisioned throughput. If not described, uses the source table's provisioned throughput settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput settings for the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index settings.
IndexName
— (String
)The name of the global secondary index.
ProvisionedThroughputOverride
— (map
)If not described, uses the source table GSI's read capacity settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
ReplicaInaccessibleDateTime
— (Date
)The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the
ReplicaStatus
property.ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
RestoreSummary
— (map
)Contains details for the restore.
SourceBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup from which the table was restored.
SourceTableArn
— (String
)The ARN of the source table of the backup that is being restored.
RestoreDateTime
— required — (Date
)Point in time or source backup time.
RestoreInProgress
— required — (Boolean
)Indicates if a restore is in progress or not.
SSEDescription
— (map
)The description of the server-side encryption status on the specified table.
Status
— (String
)Represents the current state of server-side encryption. The only supported values are:
-
ENABLED
- Server-side encryption is enabled. -
UPDATING
- Server-side encryption is being updated.
"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"UPDATING"
-
SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyArn
— (String
)The KMS key ARN used for the KMS encryption.
InaccessibleEncryptionDateTime
— (Date
)Indicates the time, in UNIX epoch date format, when DynamoDB detected that the table's KMS key was inaccessible. This attribute will automatically be cleared when DynamoDB detects that the table's KMS key is accessible again. DynamoDB will initiate the table archival process when table's KMS key remains inaccessible for more than seven days from this date.
ArchivalSummary
— (map
)Contains information about the table archive.
ArchivalDateTime
— (Date
)The date and time when table archival was initiated by DynamoDB, in UNIX epoch time format.
ArchivalReason
— (String
)The reason DynamoDB archived the table. Currently, the only possible value is:
-
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The table was archived due to the table's KMS key being inaccessible for more than seven days. An On-Demand backup was created at the archival time.
-
ArchivalBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup the table was archived to, when applicable in the archival reason. If you wish to restore this backup to the same table name, you will need to delete the original table.
TableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
DeletionProtectionEnabled
— (Boolean
)Indicates whether deletion protection is enabled (true) or disabled (false) on the table.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
(AWS.Response)
—
Returns:
describeBackup(params = {}, callback) ⇒ AWS.Request
Describes an existing backup of a table.
You can call
DescribeBackup
at a maximum rate of 10 times per second.Service Reference:
Examples:
Calling the describeBackup operation
var params = { BackupArn: 'STRING_VALUE' /* required */ }; dynamodb.describeBackup(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
BackupArn
— (String
)The Amazon Resource Name (ARN) associated with the backup.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:BackupDescription
— (map
)Contains the description of the backup created for the table.
BackupDetails
— (map
)Contains the details of the backup created for the table.
BackupArn
— required — (String
)ARN associated with the backup.
BackupName
— required — (String
)Name of the requested backup.
BackupSizeBytes
— (Integer
)Size of the backup in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
BackupStatus
— required — (String
)Backup can be in one of the following states: CREATING, ACTIVE, DELETED.
Possible values include:"CREATING"
"DELETED"
"AVAILABLE"
BackupType
— required — (String
)BackupType:
-
USER
- You create and manage these using the on-demand backup feature. -
SYSTEM
- If you delete a table with point-in-time recovery enabled, aSYSTEM
backup is automatically created and is retained for 35 days (at no additional cost). System backups allow you to restore the deleted table to the state it was in just before the point of deletion. -
AWS_BACKUP
- On-demand backup created by you from Backup service.
"USER"
"SYSTEM"
"AWS_BACKUP"
-
BackupCreationDateTime
— required — (Date
)Time at which the backup was created. This is the request time of the backup.
BackupExpiryDateTime
— (Date
)Time at which the automatic on-demand backup created by DynamoDB will expire. This
SYSTEM
on-demand backup expires automatically 35 days after its creation.
SourceTableDetails
— (map
)Contains the details of the table when the backup was created.
TableName
— required — (String
)The name of the table for which the backup was created.
TableId
— required — (String
)Unique identifier for the table for which the backup was created.
TableArn
— (String
)ARN of the table for which backup was created.
TableSizeBytes
— (Integer
)Size of the table in bytes. Note that this is an approximate value.
KeySchema
— required — (Array<map>
)Schema of the table.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
TableCreationDateTime
— required — (Date
)Time when the source table was created.
ProvisionedThroughput
— required — (map
)Read IOPs and Write IOPS on the table when the backup was created.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
ItemCount
— (Integer
)Number of items in the table. Note that this is an approximate value.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
SourceTableFeatureDetails
— (map
)Contains the details of the features enabled on the table when the backup was created. For example, LSIs, GSIs, streams, TTL.
LocalSecondaryIndexes
— (Array<map>
)Represents the LSI properties for the table when the backup was created. It includes the IndexName, KeySchema and Projection for the LSIs on the table at the time of backup.
IndexName
— (String
)Represents the name of the local secondary index.
KeySchema
— (Array<map>
)The complete key schema for a local secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
GlobalSecondaryIndexes
— (Array<map>
)Represents the GSI properties for the table when the backup was created. It includes the IndexName, KeySchema, Projection, and ProvisionedThroughput for the GSIs on the table at the time of backup.
IndexName
— (String
)The name of the global secondary index.
KeySchema
— (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
StreamDescription
— (map
)Stream settings on the table when the backup was created.
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
TimeToLiveDescription
— (map
)Time to Live settings on the table when the backup was created.
TimeToLiveStatus
— (String
)The TTL status for the table.
Possible values include:"ENABLING"
"DISABLING"
"ENABLED"
"DISABLED"
AttributeName
— (String
)The name of the TTL attribute for items in the table.
SSEDescription
— (map
)The description of the server-side encryption status on the table when the backup was created.
Status
— (String
)Represents the current state of server-side encryption. The only supported values are:
-
ENABLED
- Server-side encryption is enabled. -
UPDATING
- Server-side encryption is being updated.
"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"UPDATING"
-
SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyArn
— (String
)The KMS key ARN used for the KMS encryption.
InaccessibleEncryptionDateTime
— (Date
)Indicates the time, in UNIX epoch date format, when DynamoDB detected that the table's KMS key was inaccessible. This attribute will automatically be cleared when DynamoDB detects that the table's KMS key is accessible again. DynamoDB will initiate the table archival process when table's KMS key remains inaccessible for more than seven days from this date.
-
(AWS.Response)
—
Returns:
describeContinuousBackups(params = {}, callback) ⇒ AWS.Request
Checks the status of continuous backups and point in time recovery on the specified table. Continuous backups are
ENABLED
on all tables at table creation. If point in time recovery is enabled,PointInTimeRecoveryStatus
will be set to ENABLED.After continuous backups and point in time recovery are enabled, you can restore to any point in time within
EarliestRestorableDateTime
andLatestRestorableDateTime
.LatestRestorableDateTime
is typically 5 minutes before the current time. You can restore your table to any point in time during the last 35 days.You can call
DescribeContinuousBackups
at a maximum rate of 10 times per second.Service Reference:
Examples:
Calling the describeContinuousBackups operation
var params = { TableName: 'STRING_VALUE' /* required */ }; dynamodb.describeContinuousBackups(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)Name of the table for which the customer wants to check the continuous backups and point in time recovery settings.
You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ContinuousBackupsDescription
— (map
)Represents the continuous backups and point in time recovery settings on the table.
ContinuousBackupsStatus
— required — (String
)ContinuousBackupsStatus
can be one of the following states: ENABLED, DISABLED"ENABLED"
"DISABLED"
PointInTimeRecoveryDescription
— (map
)The description of the point in time recovery settings applied to the table.
PointInTimeRecoveryStatus
— (String
)The current state of point in time recovery:
-
ENABLED
- Point in time recovery is enabled. -
DISABLED
- Point in time recovery is disabled.
"ENABLED"
"DISABLED"
-
EarliestRestorableDateTime
— (Date
)Specifies the earliest point in time you can restore your table to. You can restore your table to any point in time during the last 35 days.
LatestRestorableDateTime
— (Date
)LatestRestorableDateTime
is typically 5 minutes before the current time.
-
(AWS.Response)
—
Returns:
describeContributorInsights(params = {}, callback) ⇒ AWS.Request
Returns information about contributor insights for a given table or global secondary index.
Service Reference:
Examples:
Calling the describeContributorInsights operation
var params = { TableName: 'STRING_VALUE', /* required */ IndexName: 'STRING_VALUE' }; dynamodb.describeContributorInsights(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table to describe. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
IndexName
— (String
)The name of the global secondary index to describe, if applicable.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableName
— (String
)The name of the table being described.
IndexName
— (String
)The name of the global secondary index being described.
ContributorInsightsRuleList
— (Array<String>
)List of names of the associated contributor insights rules.
ContributorInsightsStatus
— (String
)Current status of contributor insights.
Possible values include:"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"FAILED"
LastUpdateDateTime
— (Date
)Timestamp of the last time the status was changed.
FailureException
— (map
)Returns information about the last failure that was encountered.
The most common exceptions for a FAILED status are:
-
LimitExceededException - Per-account Amazon CloudWatch Contributor Insights rule limit reached. Please disable Contributor Insights for other tables/indexes OR disable Contributor Insights rules before retrying.
-
AccessDeniedException - Amazon CloudWatch Contributor Insights rules cannot be modified due to insufficient permissions.
-
AccessDeniedException - Failed to create service-linked role for Contributor Insights due to insufficient permissions.
-
InternalServerError - Failed to create Amazon CloudWatch Contributor Insights rules. Please retry request.
ExceptionName
— (String
)Exception name.
ExceptionDescription
— (String
)Description of the failure.
-
-
(AWS.Response)
—
Returns:
describeEndpoints(params = {}, callback) ⇒ AWS.Request
Returns the regional endpoint information. For more information on policy permissions, please see Internetwork traffic privacy.
Service Reference:
Examples:
Calling the describeEndpoints operation
var params = { }; dynamodb.describeEndpoints(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
- params (Object) (defaults to: {})
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Endpoints
— (Array<map>
)List of endpoints.
Address
— required — (String
)IP address of the endpoint.
CachePeriodInMinutes
— required — (Integer
)Endpoint cache time to live (TTL) value.
-
(AWS.Response)
—
Returns:
describeExport(params = {}, callback) ⇒ AWS.Request
Describes an existing table export.
Service Reference:
Examples:
Calling the describeExport operation
var params = { ExportArn: 'STRING_VALUE' /* required */ }; dynamodb.describeExport(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ExportArn
— (String
)The Amazon Resource Name (ARN) associated with the export.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ExportDescription
— (map
)Represents the properties of the export.
ExportArn
— (String
)The Amazon Resource Name (ARN) of the table export.
ExportStatus
— (String
)Export can be in one of the following states: IN_PROGRESS, COMPLETED, or FAILED.
Possible values include:"IN_PROGRESS"
"COMPLETED"
"FAILED"
StartTime
— (Date
)The time at which the export task began.
EndTime
— (Date
)The time at which the export task completed.
ExportManifest
— (String
)The name of the manifest file for the export task.
TableArn
— (String
)The Amazon Resource Name (ARN) of the table that was exported.
TableId
— (String
)Unique ID of the table that was exported.
ExportTime
— (Date
)Point in time from which table data was exported.
ClientToken
— (String
)The client token that was provided for the export task. A client token makes calls to
ExportTableToPointInTimeInput
idempotent, meaning that multiple identical calls have the same effect as one single call.S3Bucket
— (String
)The name of the Amazon S3 bucket containing the export.
S3BucketOwner
— (String
)The ID of the Amazon Web Services account that owns the bucket containing the export.
S3Prefix
— (String
)The Amazon S3 bucket prefix used as the file name and path of the exported snapshot.
S3SseAlgorithm
— (String
)Type of encryption used on the bucket where export data is stored. Valid values for
S3SseAlgorithm
are:-
AES256
- server-side encryption with Amazon S3 managed keys -
KMS
- server-side encryption with KMS managed keys
"AES256"
"KMS"
-
S3SseKmsKeyId
— (String
)The ID of the KMS managed key used to encrypt the S3 bucket where export data is stored (if applicable).
FailureCode
— (String
)Status code for the result of the failed export.
FailureMessage
— (String
)Export failure reason description.
ExportFormat
— (String
)The format of the exported data. Valid values for
Possible values include:ExportFormat
areDYNAMODB_JSON
orION
."DYNAMODB_JSON"
"ION"
BilledSizeBytes
— (Integer
)The billable size of the table export.
ItemCount
— (Integer
)The number of items exported.
ExportType
— (String
)The type of export that was performed. Valid values are
Possible values include:FULL_EXPORT
orINCREMENTAL_EXPORT
."FULL_EXPORT"
"INCREMENTAL_EXPORT"
IncrementalExportSpecification
— (map
)Optional object containing the parameters specific to an incremental export.
ExportFromTime
— (Date
)Time in the past which provides the inclusive start range for the export table's data, counted in seconds from the start of the Unix epoch. The incremental export will reflect the table's state including and after this point in time.
ExportToTime
— (Date
)Time in the past which provides the exclusive end range for the export table's data, counted in seconds from the start of the Unix epoch. The incremental export will reflect the table's state just prior to this point in time. If this is not provided, the latest time with data available will be used.
ExportViewType
— (String
)The view type that was chosen for the export. Valid values are
Possible values include:NEW_AND_OLD_IMAGES
andNEW_IMAGES
. The default value isNEW_AND_OLD_IMAGES
."NEW_IMAGE"
"NEW_AND_OLD_IMAGES"
-
(AWS.Response)
—
Returns:
describeGlobalTable(params = {}, callback) ⇒ AWS.Request
Returns information about the specified global table.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables. Customers should use Global Tables version 2019.11.21 (Current) when possible, because it provides greater flexibility, higher efficiency, and consumes less write capacity than 2017.11.29 (Legacy).
To determine which version you're using, see Determining the global table version you are using. To update existing global tables from version 2017.11.29 (Legacy) to version 2019.11.21 (Current), see Upgrading global tables.
Service Reference:
Examples:
Calling the describeGlobalTable operation
var params = { GlobalTableName: 'STRING_VALUE' /* required */ }; dynamodb.describeGlobalTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
GlobalTableName
— (String
)The name of the global table.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:GlobalTableDescription
— (map
)Contains the details of the global table.
ReplicationGroup
— (Array<map>
)The Regions where the global table has replicas.
RegionName
— (String
)The name of the Region.
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use. -
REGION_DISABLED
- The replica is inaccessible because the Amazon Web Services Region has been disabled.Note: If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table is inaccessible.Note: If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaStatusDescription
— (String
)Detailed information about the replica status.
ReplicaStatusPercentProgress
— (String
)Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.
KMSMasterKeyId
— (String
)The KMS key of the replica that will be used for KMS encryption.
ProvisionedThroughputOverride
— (map
)Replica-specific provisioned throughput. If not described, uses the source table's provisioned throughput settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput settings for the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index settings.
IndexName
— (String
)The name of the global secondary index.
ProvisionedThroughputOverride
— (map
)If not described, uses the source table GSI's read capacity settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
ReplicaInaccessibleDateTime
— (Date
)The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the
ReplicaStatus
property.ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
GlobalTableArn
— (String
)The unique identifier of the global table.
CreationDateTime
— (Date
)The creation time of the global table.
GlobalTableStatus
— (String
)The current state of the global table:
-
CREATING
- The global table is being created. -
UPDATING
- The global table is being updated. -
DELETING
- The global table is being deleted. -
ACTIVE
- The global table is ready for use.
"CREATING"
"ACTIVE"
"DELETING"
"UPDATING"
-
GlobalTableName
— (String
)The global table name.
-
(AWS.Response)
—
Returns:
describeGlobalTableSettings(params = {}, callback) ⇒ AWS.Request
Describes Region-specific settings for a global table.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables. Customers should use Global Tables version 2019.11.21 (Current) when possible, because it provides greater flexibility, higher efficiency, and consumes less write capacity than 2017.11.29 (Legacy).
To determine which version you're using, see Determining the global table version you are using. To update existing global tables from version 2017.11.29 (Legacy) to version 2019.11.21 (Current), see Upgrading global tables.
Service Reference:
Examples:
Calling the describeGlobalTableSettings operation
var params = { GlobalTableName: 'STRING_VALUE' /* required */ }; dynamodb.describeGlobalTableSettings(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
GlobalTableName
— (String
)The name of the global table to describe.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:GlobalTableName
— (String
)The name of the global table.
ReplicaSettings
— (Array<map>
)The Region-specific settings for the global table.
RegionName
— required — (String
)The Region name of the replica.
ReplicaStatus
— (String
)The current state of the Region:
-
CREATING
- The Region is being created. -
UPDATING
- The Region is being updated. -
DELETING
- The Region is being deleted. -
ACTIVE
- The Region is ready for use.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaBillingModeSummary
— (map
)The read/write capacity mode of the replica.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
LastUpdateToPayPerRequestDateTime
— (Date
)Represents the time when
PAY_PER_REQUEST
was last set as the read/write capacity mode.
ReplicaProvisionedReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.ReplicaProvisionedReadCapacityAutoScalingSettings
— (map
)Auto scaling settings for a global table replica's read capacity units.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ReplicaProvisionedWriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.ReplicaProvisionedWriteCapacityAutoScalingSettings
— (map
)Auto scaling settings for a global table replica's write capacity units.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ReplicaGlobalSecondaryIndexSettings
— (Array<map>
)Replica global secondary index settings for the global table.
IndexName
— required — (String
)The name of the global secondary index. The name must be unique among all other indexes on this table.
IndexStatus
— (String
)The current status of the global secondary index:
-
CREATING
- The global secondary index is being created. -
UPDATING
- The global secondary index is being updated. -
DELETING
- The global secondary index is being deleted. -
ACTIVE
- The global secondary index is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
-
ProvisionedReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
.ProvisionedReadCapacityAutoScalingSettings
— (map
)Auto scaling settings for a global secondary index replica's read capacity units.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ProvisionedWriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.ProvisionedWriteCapacityAutoScalingSettings
— (map
)Auto scaling settings for a global secondary index replica's write capacity units.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
-
(AWS.Response)
—
Returns:
describeImport(params = {}, callback) ⇒ AWS.Request
Represents the properties of the import.
Service Reference:
Examples:
Calling the describeImport operation
var params = { ImportArn: 'STRING_VALUE' /* required */ }; dynamodb.describeImport(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ImportArn
— (String
)The Amazon Resource Name (ARN) associated with the table you're importing to.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ImportTableDescription
— (map
)Represents the properties of the table created for the import, and parameters of the import. The import parameters include import status, how many items were processed, and how many errors were encountered.
ImportArn
— (String
)The Amazon Resource Number (ARN) corresponding to the import request.
ImportStatus
— (String
)The status of the import.
Possible values include:"IN_PROGRESS"
"COMPLETED"
"CANCELLING"
"CANCELLED"
"FAILED"
TableArn
— (String
)The Amazon Resource Number (ARN) of the table being imported into.
TableId
— (String
)The table id corresponding to the table created by import table process.
ClientToken
— (String
)The client token that was provided for the import task. Reusing the client token on retry makes a call to
ImportTable
idempotent.S3BucketSource
— (map
)Values for the S3 bucket the source file is imported from. Includes bucket name (required), key prefix (optional) and bucket account owner ID (optional).
S3BucketOwner
— (String
)The account number of the S3 bucket that is being imported from. If the bucket is owned by the requester this is optional.
S3Bucket
— required — (String
)The S3 bucket that is being imported from.
S3KeyPrefix
— (String
)The key prefix shared by all S3 Objects that are being imported.
ErrorCount
— (Integer
)The number of errors occurred on importing the source file into the target table.
CloudWatchLogGroupArn
— (String
)The Amazon Resource Number (ARN) of the Cloudwatch Log Group associated with the target table.
InputFormat
— (String
)The format of the source data going into the target table.
Possible values include:"DYNAMODB_JSON"
"ION"
"CSV"
InputFormatOptions
— (map
)The format options for the data that was imported into the target table. There is one value, CsvOption.
Csv
— (map
)The options for imported source files in CSV format. The values are Delimiter and HeaderList.
Delimiter
— (String
)The delimiter used for separating items in the CSV file being imported.
HeaderList
— (Array<String>
)List of the headers used to specify a common header for all source CSV files being imported. If this field is specified then the first line of each CSV file is treated as data instead of the header. If this field is not specified the the first line of each CSV file is treated as the header.
InputCompressionType
— (String
)The compression options for the data that has been imported into the target table. The values are NONE, GZIP, or ZSTD.
Possible values include:"GZIP"
"ZSTD"
"NONE"
TableCreationParameters
— (map
)The parameters for the new table that is being imported into.
TableName
— required — (String
)The name of the table created as part of the import operation.
AttributeDefinitions
— required — (Array<map>
)The attributes of the table created as part of the import operation.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
KeySchema
— required — (Array<map>
)The primary key and option sort key of the table created as part of the import operation.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
BillingMode
— (String
)The billing mode for provisioning the table created as part of the import operation.
Possible values include:"PROVISIONED"
"PAY_PER_REQUEST"
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for a specified table or index. The settings can be modified using the
UpdateTable
operation.For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
SSESpecification
— (map
)Represents the settings used to enable server-side encryption.
Enabled
— (Boolean
)Indicates whether server-side encryption is done using an Amazon Web Services managed key or an Amazon Web Services owned key. If enabled (true), server-side encryption type is set to
KMS
and an Amazon Web Services managed key is used (KMS charges apply). If disabled (false) or not specified, server-side encryption is set to Amazon Web Services owned key.SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyId
— (String
)The KMS key that should be used for the KMS encryption. To specify a key, use its key ID, Amazon Resource Name (ARN), alias name, or alias ARN. Note that you should only provide this parameter if the key is different from the default DynamoDB key
alias/aws/dynamodb
.
GlobalSecondaryIndexes
— (Array<map>
)The Global Secondary Indexes (GSI) of the table to be created as part of the import operation.
IndexName
— required — (String
)The name of the global secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
StartTime
— (Date
)The time when this import task started.
EndTime
— (Date
)The time at which the creation of the table associated with this import task completed.
ProcessedSizeBytes
— (Integer
)The total size of data processed from the source file, in Bytes.
ProcessedItemCount
— (Integer
)The total number of items processed from the source file.
ImportedItemCount
— (Integer
)The number of items successfully imported into the new table.
FailureCode
— (String
)The error code corresponding to the failure that the import job ran into during execution.
FailureMessage
— (String
)The error message corresponding to the failure that the import job ran into during execution.
-
(AWS.Response)
—
Returns:
describeKinesisStreamingDestination(params = {}, callback) ⇒ AWS.Request
Returns information about the status of Kinesis streaming.
Service Reference:
Examples:
Calling the describeKinesisStreamingDestination operation
var params = { TableName: 'STRING_VALUE' /* required */ }; dynamodb.describeKinesisStreamingDestination(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table being described. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableName
— (String
)The name of the table being described.
KinesisDataStreamDestinations
— (Array<map>
)The list of replica structures for the table being described.
StreamArn
— (String
)The ARN for a specific Kinesis data stream.
DestinationStatus
— (String
)The current status of replication.
Possible values include:"ENABLING"
"ACTIVE"
"DISABLING"
"DISABLED"
"ENABLE_FAILED"
"UPDATING"
DestinationStatusDescription
— (String
)The human-readable string that corresponds to the replica status.
ApproximateCreationDateTimePrecision
— (String
)The precision of the Kinesis data stream timestamp. The values are either
Possible values include:MILLISECOND
orMICROSECOND
."MILLISECOND"
"MICROSECOND"
-
(AWS.Response)
—
Returns:
describeLimits(params = {}, callback) ⇒ AWS.Request
Returns the current provisioned-capacity quotas for your Amazon Web Services account in a Region, both for the Region as a whole and for any one DynamoDB table that you create there.
When you establish an Amazon Web Services account, the account has initial quotas on the maximum read capacity units and write capacity units that you can provision across all of your DynamoDB tables in a given Region. Also, there are per-table quotas that apply when you create a table there. For more information, see Service, Account, and Table Quotas page in the Amazon DynamoDB Developer Guide.
Although you can increase these quotas by filing a case at Amazon Web Services Support Center, obtaining the increase is not instantaneous. The
DescribeLimits
action lets you write code to compare the capacity you are currently using to those quotas imposed by your account so that you have enough time to apply for an increase before you hit a quota.For example, you could use one of the Amazon Web Services SDKs to do the following:
-
Call
DescribeLimits
for a particular Region to obtain your current account quotas on provisioned capacity there. -
Create a variable to hold the aggregate read capacity units provisioned for all your tables in that Region, and one to hold the aggregate write capacity units. Zero them both.
-
Call
ListTables
to obtain a list of all your DynamoDB tables. -
For each table name listed by
ListTables
, do the following:-
Call
DescribeTable
with the table name. -
Use the data returned by
DescribeTable
to add the read capacity units and write capacity units provisioned for the table itself to your variables. -
If the table has one or more global secondary indexes (GSIs), loop over these GSIs and add their provisioned capacity values to your variables as well.
-
-
Report the account quotas for that Region returned by
DescribeLimits
, along with the total current provisioned capacity levels you have calculated.
This will let you see whether you are getting close to your account-level quotas.
The per-table quotas apply only when you are creating a new table. They restrict the sum of the provisioned capacity of the new table itself and all its global secondary indexes.
For existing tables and their GSIs, DynamoDB doesn't let you increase provisioned capacity extremely rapidly, but the only quota that applies is that the aggregate provisioned capacity over all your tables and GSIs cannot exceed either of the per-account quotas.
Note:DescribeLimits
should only be called periodically. You can expect throttling errors if you call it more than once in a minute.The
DescribeLimits
Request element has no content.Service Reference:
Examples:
To determine capacity limits per table and account, in the current AWS region
/* The following example returns the maximum read and write capacity units per table, and for the AWS account, in the current AWS region. */ var params = { }; dynamodb.describeLimits(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { AccountMaxReadCapacityUnits: 20000, AccountMaxWriteCapacityUnits: 20000, TableMaxReadCapacityUnits: 10000, TableMaxWriteCapacityUnits: 10000 } */ });
Calling the describeLimits operation
var params = { }; dynamodb.describeLimits(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
- params (Object) (defaults to: {})
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:AccountMaxReadCapacityUnits
— (Integer
)The maximum total read capacity units that your account allows you to provision across all of your tables in this Region.
AccountMaxWriteCapacityUnits
— (Integer
)The maximum total write capacity units that your account allows you to provision across all of your tables in this Region.
TableMaxReadCapacityUnits
— (Integer
)The maximum read capacity units that your account allows you to provision for a new table that you are creating in this Region, including the read capacity units provisioned for its global secondary indexes (GSIs).
TableMaxWriteCapacityUnits
— (Integer
)The maximum write capacity units that your account allows you to provision for a new table that you are creating in this Region, including the write capacity units provisioned for its global secondary indexes (GSIs).
-
(AWS.Response)
—
Returns:
describeTable(params = {}, callback) ⇒ AWS.Request
Returns information about the table, including the current status of the table, when it was created, the primary key schema, and any indexes on the table.
For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version).
Note: If you issue aDescribeTable
request immediately after aCreateTable
request, DynamoDB might return aResourceNotFoundException
. This is becauseDescribeTable
uses an eventually consistent query, and the metadata for your table might not be available at that moment. Wait for a few seconds, and then try theDescribeTable
request again.Service Reference:
Examples:
To describe a table
/* This example describes the Music table. */ var params = { TableName: "Music" }; dynamodb.describeTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { Table: { AttributeDefinitions: [ { AttributeName: "Artist", AttributeType: "S" }, { AttributeName: "SongTitle", AttributeType: "S" } ], CreationDateTime: <Date Representation>, ItemCount: 0, KeySchema: [ { AttributeName: "Artist", KeyType: "HASH" }, { AttributeName: "SongTitle", KeyType: "RANGE" } ], ProvisionedThroughput: { NumberOfDecreasesToday: 1, ReadCapacityUnits: 5, WriteCapacityUnits: 5 }, TableName: "Music", TableSizeBytes: 0, TableStatus: "ACTIVE" } } */ });
Calling the describeTable operation
var params = { TableName: 'STRING_VALUE' /* required */ }; dynamodb.describeTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table to describe. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Table
— (map
)The properties of the table.
AttributeDefinitions
— (Array<map>
)An array of
AttributeDefinition
objects. Each of these objects describes one attribute in the table and index key schema.Each
AttributeDefinition
object in this array is composed of:-
AttributeName
- The name of the attribute. -
AttributeType
- The data type for the attribute.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
-
TableName
— (String
)The name of the table.
KeySchema
— (Array<map>
)The primary key structure for the table. Each
KeySchemaElement
consists of:-
AttributeName
- The name of the attribute. -
KeyType
- The role of the attribute:-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value. -
For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
TableStatus
— (String
)The current state of the table:
-
CREATING
- The table is being created. -
UPDATING
- The table/index configuration is being updated. The table/index remains available for data operations whenUPDATING
. -
DELETING
- The table is being deleted. -
ACTIVE
- The table is ready for use. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table in inaccessible. Table operations may fail due to failure to use the KMS key. DynamoDB will initiate the table archival process when a table's KMS key remains inaccessible for more than seven days. -
ARCHIVING
- The table is being archived. Operations are not allowed until archival is complete. -
ARCHIVED
- The table has been archived. See the ArchivalReason for more information.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
"ARCHIVING"
"ARCHIVED"
-
CreationDateTime
— (Date
)The date and time when the table was created, in UNIX epoch time format.
ProvisionedThroughput
— (map
)The provisioned throughput settings for the table, consisting of read and write capacity units, along with data about increases and decreases.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
TableSizeBytes
— (Integer
)The total size of the specified table, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified table. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
TableArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the table.
TableId
— (String
)Unique identifier for the table for which the backup was created.
BillingModeSummary
— (map
)Contains the details for the read/write capacity mode.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
LastUpdateToPayPerRequestDateTime
— (Date
)Represents the time when
PAY_PER_REQUEST
was last set as the read/write capacity mode.
LocalSecondaryIndexes
— (Array<map>
)Represents one or more local secondary indexes on the table. Each index is scoped to a given partition key value. Tables with one or more local secondary indexes are subject to an item collection size limit, where the amount of data within a given item collection cannot exceed 10 GB. Each element is composed of:
-
IndexName
- The name of the local secondary index. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- Only the specified table attributes are projected into the index. The list of projected attributes is inNonKeyAttributes
. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
IndexSizeBytes
- Represents the total size of the index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
ItemCount
- Represents the number of items in the index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)Represents the name of the local secondary index.
KeySchema
— (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
-
GlobalSecondaryIndexes
— (Array<map>
)The global secondary indexes, if any, on the table. Each index is scoped to a given partition key value. Each element is composed of:
-
Backfilling
- If true, then the index is currently in the backfilling phase. Backfilling occurs only when a new global secondary index is added to the table. It is the process by which DynamoDB populates the new index with data from the table. (This attribute does not appear for indexes that were created during aCreateTable
operation.)You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false. (This attribute does not appear for indexes that were created during aCreateTable
operation.) -
IndexName
- The name of the global secondary index. -
IndexSizeBytes
- The total size of the global secondary index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
IndexStatus
- The current status of the global secondary index:-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
-
-
ItemCount
- The number of items in the global secondary index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
ProvisionedThroughput
- The provisioned throughput settings for the global secondary index, consisting of read and write capacity units, along with data about increases and decreases.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)The name of the global secondary index.
KeySchema
— (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexStatus
— (String
)The current state of the global secondary index:
-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
-
Backfilling
— (Boolean
)Indicates whether the index is currently backfilling. Backfilling is the process of reading items from the table and determining whether they can be added to the index. (Not all items will qualify: For example, a partition key cannot have any duplicate values.) If an item can be added to the index, DynamoDB will do so. After all items have been processed, the backfilling operation is complete and
Backfilling
is false.You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false.Note: For indexes that were created during aCreateTable
operation, theBackfilling
attribute does not appear in theDescribeTable
output.ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
StreamSpecification
— (map
)The current DynamoDB Streams configuration for the table.
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
LatestStreamLabel
— (String
)A timestamp, in ISO 8601 format, for this stream.
Note that
LatestStreamLabel
is not a unique identifier for the stream, because it is possible that a stream from another table might have the same timestamp. However, the combination of the following three elements is guaranteed to be unique:-
Amazon Web Services customer ID
-
Table name
-
StreamLabel
-
LatestStreamArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the latest stream for this table.
GlobalTableVersion
— (String
)Represents the version of global tables in use, if the table is replicated across Amazon Web Services Regions.
Replicas
— (Array<map>
)Represents replicas of the table.
RegionName
— (String
)The name of the Region.
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use. -
REGION_DISABLED
- The replica is inaccessible because the Amazon Web Services Region has been disabled.Note: If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table is inaccessible.Note: If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaStatusDescription
— (String
)Detailed information about the replica status.
ReplicaStatusPercentProgress
— (String
)Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.
KMSMasterKeyId
— (String
)The KMS key of the replica that will be used for KMS encryption.
ProvisionedThroughputOverride
— (map
)Replica-specific provisioned throughput. If not described, uses the source table's provisioned throughput settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput settings for the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index settings.
IndexName
— (String
)The name of the global secondary index.
ProvisionedThroughputOverride
— (map
)If not described, uses the source table GSI's read capacity settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
ReplicaInaccessibleDateTime
— (Date
)The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the
ReplicaStatus
property.ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
RestoreSummary
— (map
)Contains details for the restore.
SourceBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup from which the table was restored.
SourceTableArn
— (String
)The ARN of the source table of the backup that is being restored.
RestoreDateTime
— required — (Date
)Point in time or source backup time.
RestoreInProgress
— required — (Boolean
)Indicates if a restore is in progress or not.
SSEDescription
— (map
)The description of the server-side encryption status on the specified table.
Status
— (String
)Represents the current state of server-side encryption. The only supported values are:
-
ENABLED
- Server-side encryption is enabled. -
UPDATING
- Server-side encryption is being updated.
"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"UPDATING"
-
SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyArn
— (String
)The KMS key ARN used for the KMS encryption.
InaccessibleEncryptionDateTime
— (Date
)Indicates the time, in UNIX epoch date format, when DynamoDB detected that the table's KMS key was inaccessible. This attribute will automatically be cleared when DynamoDB detects that the table's KMS key is accessible again. DynamoDB will initiate the table archival process when table's KMS key remains inaccessible for more than seven days from this date.
ArchivalSummary
— (map
)Contains information about the table archive.
ArchivalDateTime
— (Date
)The date and time when table archival was initiated by DynamoDB, in UNIX epoch time format.
ArchivalReason
— (String
)The reason DynamoDB archived the table. Currently, the only possible value is:
-
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The table was archived due to the table's KMS key being inaccessible for more than seven days. An On-Demand backup was created at the archival time.
-
ArchivalBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup the table was archived to, when applicable in the archival reason. If you wish to restore this backup to the same table name, you will need to delete the original table.
TableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
DeletionProtectionEnabled
— (Boolean
)Indicates whether deletion protection is enabled (true) or disabled (false) on the table.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
(AWS.Response)
—
Returns:
Waiter Resource States:
describeTableReplicaAutoScaling(params = {}, callback) ⇒ AWS.Request
Describes auto scaling settings across replicas of the global table at once.
For global tables, this operation only applies to global tables using Version 2019.11.21 (Current version).
Service Reference:
Examples:
Calling the describeTableReplicaAutoScaling operation
var params = { TableName: 'STRING_VALUE' /* required */ }; dynamodb.describeTableReplicaAutoScaling(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableAutoScalingDescription
— (map
)Represents the auto scaling properties of the table.
TableName
— (String
)The name of the table.
TableStatus
— (String
)The current state of the table:
-
CREATING
- The table is being created. -
UPDATING
- The table is being updated. -
DELETING
- The table is being deleted. -
ACTIVE
- The table is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
"ARCHIVING"
"ARCHIVED"
-
Replicas
— (Array<map>
)Represents replicas of the global table.
RegionName
— (String
)The Region where the replica exists.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index auto scaling settings.
IndexName
— (String
)The name of the global secondary index.
IndexStatus
— (String
)The current state of the replica global secondary index:
-
CREATING
- The index is being created. -
UPDATING
- The table/index configuration is being updated. The table/index remains available for data operations whenUPDATING
-
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
-
ProvisionedReadCapacityAutoScalingSettings
— (map
)Represents the auto scaling settings for a global table or global secondary index.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ProvisionedWriteCapacityAutoScalingSettings
— (map
)Represents the auto scaling settings for a global table or global secondary index.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ReplicaProvisionedReadCapacityAutoScalingSettings
— (map
)Represents the auto scaling settings for a global table or global secondary index.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ReplicaProvisionedWriteCapacityAutoScalingSettings
— (map
)Represents the auto scaling settings for a global table or global secondary index.
MinimumUnits
— (Integer
)The minimum capacity units that a global table or global secondary index should be scaled down to.
MaximumUnits
— (Integer
)The maximum capacity units that a global table or global secondary index should be scaled up to.
AutoScalingDisabled
— (Boolean
)Disabled auto scaling for this global table or global secondary index.
AutoScalingRoleArn
— (String
)Role ARN used for configuring the auto scaling policy.
ScalingPolicies
— (Array<map>
)Information about the scaling policies.
PolicyName
— (String
)The name of the scaling policy.
TargetTrackingScalingPolicyConfiguration
— (map
)Represents a target tracking scaling policy configuration.
DisableScaleIn
— (Boolean
)Indicates whether scale in by the target tracking policy is disabled. If the value is true, scale in is disabled and the target tracking policy won't remove capacity from the scalable resource. Otherwise, scale in is enabled and the target tracking policy can remove capacity from the scalable resource. The default value is false.
ScaleInCooldown
— (Integer
)The amount of time, in seconds, after a scale in activity completes before another scale in activity can start. The cooldown period is used to block subsequent scale in requests until it has expired. You should scale in conservatively to protect your application's availability. However, if another alarm triggers a scale out policy during the cooldown period after a scale-in, application auto scaling scales out your scalable target immediately.
ScaleOutCooldown
— (Integer
)The amount of time, in seconds, after a scale out activity completes before another scale out activity can start. While the cooldown period is in effect, the capacity that has been added by the previous scale out event that initiated the cooldown is calculated as part of the desired capacity for the next scale out. You should continuously (but not excessively) scale out.
TargetValue
— required — (Float
)The target value for the metric. The range is 8.515920e-109 to 1.174271e+108 (Base 10) or 2e-360 to 2e360 (Base 2).
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
-
(AWS.Response)
—
Returns:
describeTimeToLive(params = {}, callback) ⇒ AWS.Request
Gives a description of the Time to Live (TTL) status on the specified table.
Service Reference:
Examples:
Calling the describeTimeToLive operation
var params = { TableName: 'STRING_VALUE' /* required */ }; dynamodb.describeTimeToLive(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table to be described. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TimeToLiveDescription
— (map
)TimeToLiveStatus
— (String
)The TTL status for the table.
Possible values include:"ENABLING"
"DISABLING"
"ENABLED"
"DISABLED"
AttributeName
— (String
)The name of the TTL attribute for items in the table.
-
(AWS.Response)
—
Returns:
disableKinesisStreamingDestination(params = {}, callback) ⇒ AWS.Request
Stops replication from the DynamoDB table to the Kinesis data stream. This is done without deleting either of the resources.
Service Reference:
Examples:
Calling the disableKinesisStreamingDestination operation
var params = { StreamArn: 'STRING_VALUE', /* required */ TableName: 'STRING_VALUE', /* required */ EnableKinesisStreamingConfiguration: { ApproximateCreationDateTimePrecision: MILLISECOND | MICROSECOND } }; dynamodb.disableKinesisStreamingDestination(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the DynamoDB table. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
StreamArn
— (String
)The ARN for a Kinesis data stream.
EnableKinesisStreamingConfiguration
— (map
)The source for the Kinesis streaming information that is being enabled.
ApproximateCreationDateTimePrecision
— (String
)Toggle for the precision of Kinesis data stream timestamp. The values are either
Possible values include:MILLISECOND
orMICROSECOND
."MILLISECOND"
"MICROSECOND"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableName
— (String
)The name of the table being modified.
StreamArn
— (String
)The ARN for the specific Kinesis data stream.
DestinationStatus
— (String
)The current status of the replication.
Possible values include:"ENABLING"
"ACTIVE"
"DISABLING"
"DISABLED"
"ENABLE_FAILED"
"UPDATING"
EnableKinesisStreamingConfiguration
— (map
)The destination for the Kinesis streaming information that is being enabled.
ApproximateCreationDateTimePrecision
— (String
)Toggle for the precision of Kinesis data stream timestamp. The values are either
Possible values include:MILLISECOND
orMICROSECOND
."MILLISECOND"
"MICROSECOND"
-
(AWS.Response)
—
Returns:
enableKinesisStreamingDestination(params = {}, callback) ⇒ AWS.Request
Starts table data replication to the specified Kinesis data stream at a timestamp chosen during the enable workflow. If this operation doesn't return results immediately, use DescribeKinesisStreamingDestination to check if streaming to the Kinesis data stream is ACTIVE.
Service Reference:
Examples:
Calling the enableKinesisStreamingDestination operation
var params = { StreamArn: 'STRING_VALUE', /* required */ TableName: 'STRING_VALUE', /* required */ EnableKinesisStreamingConfiguration: { ApproximateCreationDateTimePrecision: MILLISECOND | MICROSECOND } }; dynamodb.enableKinesisStreamingDestination(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the DynamoDB table. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
StreamArn
— (String
)The ARN for a Kinesis data stream.
EnableKinesisStreamingConfiguration
— (map
)The source for the Kinesis streaming information that is being enabled.
ApproximateCreationDateTimePrecision
— (String
)Toggle for the precision of Kinesis data stream timestamp. The values are either
Possible values include:MILLISECOND
orMICROSECOND
."MILLISECOND"
"MICROSECOND"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableName
— (String
)The name of the table being modified.
StreamArn
— (String
)The ARN for the specific Kinesis data stream.
DestinationStatus
— (String
)The current status of the replication.
Possible values include:"ENABLING"
"ACTIVE"
"DISABLING"
"DISABLED"
"ENABLE_FAILED"
"UPDATING"
EnableKinesisStreamingConfiguration
— (map
)The destination for the Kinesis streaming information that is being enabled.
ApproximateCreationDateTimePrecision
— (String
)Toggle for the precision of Kinesis data stream timestamp. The values are either
Possible values include:MILLISECOND
orMICROSECOND
."MILLISECOND"
"MICROSECOND"
-
(AWS.Response)
—
Returns:
executeStatement(params = {}, callback) ⇒ AWS.Request
This operation allows you to perform reads and singleton writes on data stored in DynamoDB, using PartiQL.
For PartiQL reads (
SELECT
statement), if the total number of processed items exceeds the maximum dataset size limit of 1 MB, the read stops and results are returned to the user as aLastEvaluatedKey
value to continue the read in a subsequent operation. If the filter criteria inWHERE
clause does not match any data, the read will return an empty result set.A single
SELECT
statement response can return up to the maximum number of items (if using the Limit parameter) or a maximum of 1 MB of data (and then apply any filtering to the results usingWHERE
clause). IfLastEvaluatedKey
is present in the response, you need to paginate the result set. IfNextToken
is present, you need to paginate the result set and includeNextToken
.Service Reference:
Examples:
Calling the executeStatement operation
var params = { Statement: 'STRING_VALUE', /* required */ ConsistentRead: true || false, Limit: 'NUMBER_VALUE', NextToken: 'STRING_VALUE', Parameters: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ], ReturnConsumedCapacity: INDEXES | TOTAL | NONE, ReturnValuesOnConditionCheckFailure: ALL_OLD | NONE }; dynamodb.executeStatement(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
Statement
— (String
)The PartiQL statement representing the operation to run.
Parameters
— (Array<map>
)The parameters for the PartiQL statement, if any.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsistentRead
— (Boolean
)The consistency of a read operation. If set to
true
, then a strongly consistent read is used; otherwise, an eventually consistent read is used.NextToken
— (String
)Set this value to get remaining results, if
NextToken
was returned in the statement response.ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
Limit
— (Integer
)The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, along with a key in
LastEvaluatedKey
to apply in a subsequent operation so you can pick up where you left off. Also, if the processed dataset size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key inLastEvaluatedKey
to apply in a subsequent operation to continue the operation.ReturnValuesOnConditionCheckFailure
— (String
)An optional parameter that returns the item attributes for an
ExecuteStatement
operation that failed a condition check.There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
Possible values include:"ALL_OLD"
"NONE"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Items
— (Array<map<map>>
)If a read operation was used, this property will contain the result of the read operation; a map of attribute names and their values. For the write operations this value will be empty.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
NextToken
— (String
)If the response of a read request exceeds the response payload limit DynamoDB will set this value in the response. If set, you can use that this value in the subsequent request to get the remaining results.
ConsumedCapacity
— (map
)The capacity units consumed by an operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation.
ConsumedCapacity
is only returned if the request asked for it. For more information, see Provisioned capacity mode in the Amazon DynamoDB Developer Guide.TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LastEvaluatedKey
— (map<map>
)The primary key of the item where the operation stopped, inclusive of the previous result set. Use this value to start a new operation, excluding this value in the new request. If
LastEvaluatedKey
is empty, then the "last page" of results has been processed and there is no more data to be retrieved. IfLastEvaluatedKey
is not empty, it does not necessarily mean that there is more data in the result set. The only way to know when you have reached the end of the result set is whenLastEvaluatedKey
is empty.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
-
(AWS.Response)
—
Returns:
executeTransaction(params = {}, callback) ⇒ AWS.Request
This operation allows you to perform transactional reads or writes on data stored in DynamoDB, using PartiQL.
Note: The entire transaction must consist of either read statements or write statements, you cannot mix both in one transaction. The EXISTS function is an exception and can be used to check the condition of specific attributes of the item in a similar manner toConditionCheck
in the TransactWriteItems API.Service Reference:
Examples:
Calling the executeTransaction operation
var params = { TransactStatements: [ /* required */ { Statement: 'STRING_VALUE', /* required */ Parameters: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ], ReturnValuesOnConditionCheckFailure: ALL_OLD | NONE }, /* more items */ ], ClientRequestToken: 'STRING_VALUE', ReturnConsumedCapacity: INDEXES | TOTAL | NONE }; dynamodb.executeTransaction(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TransactStatements
— (Array<map>
)The list of PartiQL statements representing the transaction to run.
Statement
— required — (String
)A PartiQL statement that uses parameters.
Parameters
— (Array<map>
)The parameter values.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ReturnValuesOnConditionCheckFailure
— (String
)An optional parameter that returns the item attributes for a PartiQL
ParameterizedStatement
operation that failed a condition check.There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
Possible values include:"ALL_OLD"
"NONE"
ClientRequestToken
— (String
)Set this value to get remaining results, if
If a token is not provided, the SDK will use a version 4 UUID.NextToken
was returned in the statement response.ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response. For more information, see TransactGetItems and TransactWriteItems.
Possible values include:"INDEXES"
"TOTAL"
"NONE"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Responses
— (Array<map>
)The response to a PartiQL transaction.
Item
— (map<map>
)Map of attribute data consisting of the data type and attribute value.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsumedCapacity
— (Array<map>
)The capacity units consumed by the entire operation. The values of the list are ordered according to the ordering of the statements.
TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
-
(AWS.Response)
—
Returns:
exportTableToPointInTime(params = {}, callback) ⇒ AWS.Request
Exports table data to an S3 bucket. The table must have point in time recovery enabled, and you can export data from any time within the point in time recovery window.
Service Reference:
Examples:
Calling the exportTableToPointInTime operation
var params = { S3Bucket: 'STRING_VALUE', /* required */ TableArn: 'STRING_VALUE', /* required */ ClientToken: 'STRING_VALUE', ExportFormat: DYNAMODB_JSON | ION, ExportTime: new Date || 'Wed Dec 31 1969 16:00:00 GMT-0800 (PST)' || 123456789, ExportType: FULL_EXPORT | INCREMENTAL_EXPORT, IncrementalExportSpecification: { ExportFromTime: new Date || 'Wed Dec 31 1969 16:00:00 GMT-0800 (PST)' || 123456789, ExportToTime: new Date || 'Wed Dec 31 1969 16:00:00 GMT-0800 (PST)' || 123456789, ExportViewType: NEW_IMAGE | NEW_AND_OLD_IMAGES }, S3BucketOwner: 'STRING_VALUE', S3Prefix: 'STRING_VALUE', S3SseAlgorithm: AES256 | KMS, S3SseKmsKeyId: 'STRING_VALUE' }; dynamodb.exportTableToPointInTime(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableArn
— (String
)The Amazon Resource Name (ARN) associated with the table to export.
ExportTime
— (Date
)Time in the past from which to export table data, counted in seconds from the start of the Unix epoch. The table export will be a snapshot of the table's state at this point in time.
ClientToken
— (String
)Providing a
ClientToken
makes the call toExportTableToPointInTimeInput
idempotent, meaning that multiple identical calls have the same effect as one single call.A client token is valid for 8 hours after the first request that uses it is completed. After 8 hours, any request with the same client token is treated as a new request. Do not resubmit the same request with the same client token for more than 8 hours, or the result might not be idempotent.
If you submit a request with the same client token but a change in other parameters within the 8-hour idempotency window, DynamoDB returns an
If a token is not provided, the SDK will use a version 4 UUID.ImportConflictException
.S3Bucket
— (String
)The name of the Amazon S3 bucket to export the snapshot to.
S3BucketOwner
— (String
)The ID of the Amazon Web Services account that owns the bucket the export will be stored in.
Note: S3BucketOwner is a required parameter when exporting to a S3 bucket in another account.S3Prefix
— (String
)The Amazon S3 bucket prefix to use as the file name and path of the exported snapshot.
S3SseAlgorithm
— (String
)Type of encryption used on the bucket where export data will be stored. Valid values for
S3SseAlgorithm
are:-
AES256
- server-side encryption with Amazon S3 managed keys -
KMS
- server-side encryption with KMS managed keys
"AES256"
"KMS"
-
S3SseKmsKeyId
— (String
)The ID of the KMS managed key used to encrypt the S3 bucket where export data will be stored (if applicable).
ExportFormat
— (String
)The format for the exported data. Valid values for
Possible values include:ExportFormat
areDYNAMODB_JSON
orION
."DYNAMODB_JSON"
"ION"
ExportType
— (String
)Choice of whether to execute as a full export or incremental export. Valid values are FULL_EXPORT or INCREMENTAL_EXPORT. The default value is FULL_EXPORT. If INCREMENTAL_EXPORT is provided, the IncrementalExportSpecification must also be used.
Possible values include:"FULL_EXPORT"
"INCREMENTAL_EXPORT"
IncrementalExportSpecification
— (map
)Optional object containing the parameters specific to an incremental export.
ExportFromTime
— (Date
)Time in the past which provides the inclusive start range for the export table's data, counted in seconds from the start of the Unix epoch. The incremental export will reflect the table's state including and after this point in time.
ExportToTime
— (Date
)Time in the past which provides the exclusive end range for the export table's data, counted in seconds from the start of the Unix epoch. The incremental export will reflect the table's state just prior to this point in time. If this is not provided, the latest time with data available will be used.
ExportViewType
— (String
)The view type that was chosen for the export. Valid values are
Possible values include:NEW_AND_OLD_IMAGES
andNEW_IMAGES
. The default value isNEW_AND_OLD_IMAGES
."NEW_IMAGE"
"NEW_AND_OLD_IMAGES"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ExportDescription
— (map
)Contains a description of the table export.
ExportArn
— (String
)The Amazon Resource Name (ARN) of the table export.
ExportStatus
— (String
)Export can be in one of the following states: IN_PROGRESS, COMPLETED, or FAILED.
Possible values include:"IN_PROGRESS"
"COMPLETED"
"FAILED"
StartTime
— (Date
)The time at which the export task began.
EndTime
— (Date
)The time at which the export task completed.
ExportManifest
— (String
)The name of the manifest file for the export task.
TableArn
— (String
)The Amazon Resource Name (ARN) of the table that was exported.
TableId
— (String
)Unique ID of the table that was exported.
ExportTime
— (Date
)Point in time from which table data was exported.
ClientToken
— (String
)The client token that was provided for the export task. A client token makes calls to
ExportTableToPointInTimeInput
idempotent, meaning that multiple identical calls have the same effect as one single call.S3Bucket
— (String
)The name of the Amazon S3 bucket containing the export.
S3BucketOwner
— (String
)The ID of the Amazon Web Services account that owns the bucket containing the export.
S3Prefix
— (String
)The Amazon S3 bucket prefix used as the file name and path of the exported snapshot.
S3SseAlgorithm
— (String
)Type of encryption used on the bucket where export data is stored. Valid values for
S3SseAlgorithm
are:-
AES256
- server-side encryption with Amazon S3 managed keys -
KMS
- server-side encryption with KMS managed keys
"AES256"
"KMS"
-
S3SseKmsKeyId
— (String
)The ID of the KMS managed key used to encrypt the S3 bucket where export data is stored (if applicable).
FailureCode
— (String
)Status code for the result of the failed export.
FailureMessage
— (String
)Export failure reason description.
ExportFormat
— (String
)The format of the exported data. Valid values for
Possible values include:ExportFormat
areDYNAMODB_JSON
orION
."DYNAMODB_JSON"
"ION"
BilledSizeBytes
— (Integer
)The billable size of the table export.
ItemCount
— (Integer
)The number of items exported.
ExportType
— (String
)The type of export that was performed. Valid values are
Possible values include:FULL_EXPORT
orINCREMENTAL_EXPORT
."FULL_EXPORT"
"INCREMENTAL_EXPORT"
IncrementalExportSpecification
— (map
)Optional object containing the parameters specific to an incremental export.
ExportFromTime
— (Date
)Time in the past which provides the inclusive start range for the export table's data, counted in seconds from the start of the Unix epoch. The incremental export will reflect the table's state including and after this point in time.
ExportToTime
— (Date
)Time in the past which provides the exclusive end range for the export table's data, counted in seconds from the start of the Unix epoch. The incremental export will reflect the table's state just prior to this point in time. If this is not provided, the latest time with data available will be used.
ExportViewType
— (String
)The view type that was chosen for the export. Valid values are
Possible values include:NEW_AND_OLD_IMAGES
andNEW_IMAGES
. The default value isNEW_AND_OLD_IMAGES
."NEW_IMAGE"
"NEW_AND_OLD_IMAGES"
-
(AWS.Response)
—
Returns:
getItem(params = {}, callback) ⇒ AWS.Request
The
GetItem
operation returns a set of attributes for the item with the given primary key. If there is no matching item,GetItem
does not return any data and there will be noItem
element in the response.GetItem
provides an eventually consistent read by default. If your application requires a strongly consistent read, setConsistentRead
totrue
. Although a strongly consistent read might take more time than an eventually consistent read, it always returns the last updated value.Service Reference:
Examples:
To read an item from a table
/* This example retrieves an item from the Music table. The table has a partition key and a sort key (Artist and SongTitle), so you must specify both of these attributes. */ var params = { Key: { "Artist": { S: "Acme Band" }, "SongTitle": { S: "Happy Day" } }, TableName: "Music" }; dynamodb.getItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { Item: { "AlbumTitle": { S: "Songs About Life" }, "Artist": { S: "Acme Band" }, "SongTitle": { S: "Happy Day" } } } */ });
Calling the getItem operation
var params = { Key: { /* required */ '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ }, TableName: 'STRING_VALUE', /* required */ AttributesToGet: [ 'STRING_VALUE', /* more items */ ], ConsistentRead: true || false, ExpressionAttributeNames: { '<ExpressionAttributeNameVariable>': 'STRING_VALUE', /* '<ExpressionAttributeNameVariable>': ... */ }, ProjectionExpression: 'STRING_VALUE', ReturnConsumedCapacity: INDEXES | TOTAL | NONE }; dynamodb.getItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table containing the requested item. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Key
— (map<map>
)A map of attribute names to
AttributeValue
objects, representing the primary key of the item to retrieve.For the primary key, you must provide all of the attributes. For example, with a simple primary key, you only need to provide a value for the partition key. For a composite primary key, you must provide values for both the partition key and the sort key.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
AttributesToGet
— (Array<String>
)This is a legacy parameter. Use
ProjectionExpression
instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.ConsistentRead
— (Boolean
)Determines the read consistency model: If set to
true
, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
ProjectionExpression
— (String
)A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
If no attribute names are specified, then all attributes are returned. If any of the requested attributes are not found, they do not appear in the result.
For more information, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
ExpressionAttributeNames
— (map<String>
)One or more substitution tokens for attribute names in an expression. The following are some use cases for using
ExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information on expression attribute names, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
-
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Item
— (map<map>
)A map of attribute names to
AttributeValue
objects, as specified byProjectionExpression
.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsumedCapacity
— (map
)The capacity units consumed by the
GetItem
operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation.ConsumedCapacity
is only returned if theReturnConsumedCapacity
parameter was specified. For more information, see Capacity unit consumption for read operations in the Amazon DynamoDB Developer Guide.TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
-
(AWS.Response)
—
Returns:
getResourcePolicy(params = {}, callback) ⇒ AWS.Request
Returns the resource-based policy document attached to the resource, which can be a table or stream, in JSON format.
GetResourcePolicy
follows an eventually consistent model. The following list describes the outcomes when you issue theGetResourcePolicy
request immediately after issuing another request:-
If you issue a
GetResourcePolicy
request immediately after aPutResourcePolicy
request, DynamoDB might return aPolicyNotFoundException
. -
If you issue a
GetResourcePolicy
request immediately after aDeleteResourcePolicy
request, DynamoDB might return the policy that was present before the deletion request. -
If you issue a
GetResourcePolicy
request immediately after aCreateTable
request, which includes a resource-based policy, DynamoDB might return aResourceNotFoundException
or aPolicyNotFoundException
.
Because
GetResourcePolicy
uses an eventually consistent query, the metadata for your policy or table might not be available at that moment. Wait for a few seconds, and then retry theGetResourcePolicy
request.After a
GetResourcePolicy
request returns a policy created using thePutResourcePolicy
request, the policy will be applied in the authorization of requests to the resource. Because this process is eventually consistent, it will take some time to apply the policy to all requests to a resource. Policies that you attach while creating a table using theCreateTable
request will always be applied to all requests for that table.Service Reference:
Examples:
Calling the getResourcePolicy operation
var params = { ResourceArn: 'STRING_VALUE' /* required */ }; dynamodb.getResourcePolicy(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ResourceArn
— (String
)The Amazon Resource Name (ARN) of the DynamoDB resource to which the policy is attached. The resources you can specify include tables and streams.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Policy
— (String
)The resource-based policy document attached to the resource, which can be a table or stream, in JSON format.
RevisionId
— (String
)A unique string that represents the revision ID of the policy. If you're comparing revision IDs, make sure to always use string comparison logic.
-
(AWS.Response)
—
Returns:
importTable(params = {}, callback) ⇒ AWS.Request
Imports table data from an S3 bucket.
Service Reference:
Examples:
Calling the importTable operation
var params = { InputFormat: DYNAMODB_JSON | ION | CSV, /* required */ S3BucketSource: { /* required */ S3Bucket: 'STRING_VALUE', /* required */ S3BucketOwner: 'STRING_VALUE', S3KeyPrefix: 'STRING_VALUE' }, TableCreationParameters: { /* required */ AttributeDefinitions: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ AttributeType: S | N | B /* required */ }, /* more items */ ], KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], TableName: 'STRING_VALUE', /* required */ BillingMode: PROVISIONED | PAY_PER_REQUEST, GlobalSecondaryIndexes: [ { IndexName: 'STRING_VALUE', /* required */ KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], Projection: { /* required */ NonKeyAttributes: [ 'STRING_VALUE', /* more items */ ], ProjectionType: ALL | KEYS_ONLY | INCLUDE }, OnDemandThroughput: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughput: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ } }, /* more items */ ], OnDemandThroughput: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughput: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ }, SSESpecification: { Enabled: true || false, KMSMasterKeyId: 'STRING_VALUE', SSEType: AES256 | KMS } }, ClientToken: 'STRING_VALUE', InputCompressionType: GZIP | ZSTD | NONE, InputFormatOptions: { Csv: { Delimiter: 'STRING_VALUE', HeaderList: [ 'STRING_VALUE', /* more items */ ] } } }; dynamodb.importTable(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ClientToken
— (String
)Providing a
ClientToken
makes the call toImportTableInput
idempotent, meaning that multiple identical calls have the same effect as one single call.A client token is valid for 8 hours after the first request that uses it is completed. After 8 hours, any request with the same client token is treated as a new request. Do not resubmit the same request with the same client token for more than 8 hours, or the result might not be idempotent.
If you submit a request with the same client token but a change in other parameters within the 8-hour idempotency window, DynamoDB returns an
If a token is not provided, the SDK will use a version 4 UUID.IdempotentParameterMismatch
exception.S3BucketSource
— (map
)The S3 bucket that provides the source for the import.
S3BucketOwner
— (String
)The account number of the S3 bucket that is being imported from. If the bucket is owned by the requester this is optional.
S3Bucket
— required — (String
)The S3 bucket that is being imported from.
S3KeyPrefix
— (String
)The key prefix shared by all S3 Objects that are being imported.
InputFormat
— (String
)The format of the source data. Valid values for
Possible values include:ImportFormat
areCSV
,DYNAMODB_JSON
orION
."DYNAMODB_JSON"
"ION"
"CSV"
InputFormatOptions
— (map
)Additional properties that specify how the input is formatted,
Csv
— (map
)The options for imported source files in CSV format. The values are Delimiter and HeaderList.
Delimiter
— (String
)The delimiter used for separating items in the CSV file being imported.
HeaderList
— (Array<String>
)List of the headers used to specify a common header for all source CSV files being imported. If this field is specified then the first line of each CSV file is treated as data instead of the header. If this field is not specified the the first line of each CSV file is treated as the header.
InputCompressionType
— (String
)Type of compression to be used on the input coming from the imported table.
Possible values include:"GZIP"
"ZSTD"
"NONE"
TableCreationParameters
— (map
)Parameters for the table to import the data into.
TableName
— required — (String
)The name of the table created as part of the import operation.
AttributeDefinitions
— required — (Array<map>
)The attributes of the table created as part of the import operation.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
KeySchema
— required — (Array<map>
)The primary key and option sort key of the table created as part of the import operation.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
BillingMode
— (String
)The billing mode for provisioning the table created as part of the import operation.
Possible values include:"PROVISIONED"
"PAY_PER_REQUEST"
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for a specified table or index. The settings can be modified using the
UpdateTable
operation.For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
SSESpecification
— (map
)Represents the settings used to enable server-side encryption.
Enabled
— (Boolean
)Indicates whether server-side encryption is done using an Amazon Web Services managed key or an Amazon Web Services owned key. If enabled (true), server-side encryption type is set to
KMS
and an Amazon Web Services managed key is used (KMS charges apply). If disabled (false) or not specified, server-side encryption is set to Amazon Web Services owned key.SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyId
— (String
)The KMS key that should be used for the KMS encryption. To specify a key, use its key ID, Amazon Resource Name (ARN), alias name, or alias ARN. Note that you should only provide this parameter if the key is different from the default DynamoDB key
alias/aws/dynamodb
.
GlobalSecondaryIndexes
— (Array<map>
)The Global Secondary Indexes (GSI) of the table to be created as part of the import operation.
IndexName
— required — (String
)The name of the global secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ImportTableDescription
— (map
)Represents the properties of the table created for the import, and parameters of the import. The import parameters include import status, how many items were processed, and how many errors were encountered.
ImportArn
— (String
)The Amazon Resource Number (ARN) corresponding to the import request.
ImportStatus
— (String
)The status of the import.
Possible values include:"IN_PROGRESS"
"COMPLETED"
"CANCELLING"
"CANCELLED"
"FAILED"
TableArn
— (String
)The Amazon Resource Number (ARN) of the table being imported into.
TableId
— (String
)The table id corresponding to the table created by import table process.
ClientToken
— (String
)The client token that was provided for the import task. Reusing the client token on retry makes a call to
ImportTable
idempotent.S3BucketSource
— (map
)Values for the S3 bucket the source file is imported from. Includes bucket name (required), key prefix (optional) and bucket account owner ID (optional).
S3BucketOwner
— (String
)The account number of the S3 bucket that is being imported from. If the bucket is owned by the requester this is optional.
S3Bucket
— required — (String
)The S3 bucket that is being imported from.
S3KeyPrefix
— (String
)The key prefix shared by all S3 Objects that are being imported.
ErrorCount
— (Integer
)The number of errors occurred on importing the source file into the target table.
CloudWatchLogGroupArn
— (String
)The Amazon Resource Number (ARN) of the Cloudwatch Log Group associated with the target table.
InputFormat
— (String
)The format of the source data going into the target table.
Possible values include:"DYNAMODB_JSON"
"ION"
"CSV"
InputFormatOptions
— (map
)The format options for the data that was imported into the target table. There is one value, CsvOption.
Csv
— (map
)The options for imported source files in CSV format. The values are Delimiter and HeaderList.
Delimiter
— (String
)The delimiter used for separating items in the CSV file being imported.
HeaderList
— (Array<String>
)List of the headers used to specify a common header for all source CSV files being imported. If this field is specified then the first line of each CSV file is treated as data instead of the header. If this field is not specified the the first line of each CSV file is treated as the header.
InputCompressionType
— (String
)The compression options for the data that has been imported into the target table. The values are NONE, GZIP, or ZSTD.
Possible values include:"GZIP"
"ZSTD"
"NONE"
TableCreationParameters
— (map
)The parameters for the new table that is being imported into.
TableName
— required — (String
)The name of the table created as part of the import operation.
AttributeDefinitions
— required — (Array<map>
)The attributes of the table created as part of the import operation.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
KeySchema
— required — (Array<map>
)The primary key and option sort key of the table created as part of the import operation.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
BillingMode
— (String
)The billing mode for provisioning the table created as part of the import operation.
Possible values include:"PROVISIONED"
"PAY_PER_REQUEST"
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for a specified table or index. The settings can be modified using the
UpdateTable
operation.For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
SSESpecification
— (map
)Represents the settings used to enable server-side encryption.
Enabled
— (Boolean
)Indicates whether server-side encryption is done using an Amazon Web Services managed key or an Amazon Web Services owned key. If enabled (true), server-side encryption type is set to
KMS
and an Amazon Web Services managed key is used (KMS charges apply). If disabled (false) or not specified, server-side encryption is set to Amazon Web Services owned key.SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyId
— (String
)The KMS key that should be used for the KMS encryption. To specify a key, use its key ID, Amazon Resource Name (ARN), alias name, or alias ARN. Note that you should only provide this parameter if the key is different from the default DynamoDB key
alias/aws/dynamodb
.
GlobalSecondaryIndexes
— (Array<map>
)The Global Secondary Indexes (GSI) of the table to be created as part of the import operation.
IndexName
— required — (String
)The name of the global secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
StartTime
— (Date
)The time when this import task started.
EndTime
— (Date
)The time at which the creation of the table associated with this import task completed.
ProcessedSizeBytes
— (Integer
)The total size of data processed from the source file, in Bytes.
ProcessedItemCount
— (Integer
)The total number of items processed from the source file.
ImportedItemCount
— (Integer
)The number of items successfully imported into the new table.
FailureCode
— (String
)The error code corresponding to the failure that the import job ran into during execution.
FailureMessage
— (String
)The error message corresponding to the failure that the import job ran into during execution.
-
(AWS.Response)
—
Returns:
listBackups(params = {}, callback) ⇒ AWS.Request
List DynamoDB backups that are associated with an Amazon Web Services account and weren't made with Amazon Web Services Backup. To list these backups for a given table, specify
TableName
.ListBackups
returns a paginated list of results with at most 1 MB worth of items in a page. You can also specify a maximum number of entries to be returned in a page.In the request, start time is inclusive, but end time is exclusive. Note that these boundaries are for the time at which the original backup was requested.
You can call
ListBackups
a maximum of five times per second.If you want to retrieve the complete list of backups made with Amazon Web Services Backup, use the Amazon Web Services Backup list API.
Service Reference:
Examples:
Calling the listBackups operation
var params = { BackupType: USER | SYSTEM | AWS_BACKUP | ALL, ExclusiveStartBackupArn: 'STRING_VALUE', Limit: 'NUMBER_VALUE', TableName: 'STRING_VALUE', TimeRangeLowerBound: new Date || 'Wed Dec 31 1969 16:00:00 GMT-0800 (PST)' || 123456789, TimeRangeUpperBound: new Date || 'Wed Dec 31 1969 16:00:00 GMT-0800 (PST)' || 123456789 }; dynamodb.listBackups(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)Lists the backups from the table specified in
TableName
. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.Limit
— (Integer
)Maximum number of backups to return at once.
TimeRangeLowerBound
— (Date
)Only backups created after this time are listed.
TimeRangeLowerBound
is inclusive.TimeRangeUpperBound
— (Date
)Only backups created before this time are listed.
TimeRangeUpperBound
is exclusive.ExclusiveStartBackupArn
— (String
)LastEvaluatedBackupArn
is the Amazon Resource Name (ARN) of the backup last evaluated when the current page of results was returned, inclusive of the current page of results. This value may be specified as theExclusiveStartBackupArn
of a newListBackups
operation in order to fetch the next page of results.BackupType
— (String
)The backups from the table specified by
BackupType
are listed.Where
BackupType
can be:-
USER
- On-demand backup created by you. (The default setting if no other backup types are specified.) -
SYSTEM
- On-demand backup automatically created by DynamoDB. -
ALL
- All types of on-demand backups (USER and SYSTEM).
"USER"
"SYSTEM"
"AWS_BACKUP"
"ALL"
-
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:BackupSummaries
— (Array<map>
)List of
BackupSummary
objects.TableName
— (String
)Name of the table.
TableId
— (String
)Unique identifier for the table.
TableArn
— (String
)ARN associated with the table.
BackupArn
— (String
)ARN associated with the backup.
BackupName
— (String
)Name of the specified backup.
BackupCreationDateTime
— (Date
)Time at which the backup was created.
BackupExpiryDateTime
— (Date
)Time at which the automatic on-demand backup created by DynamoDB will expire. This
SYSTEM
on-demand backup expires automatically 35 days after its creation.BackupStatus
— (String
)Backup can be in one of the following states: CREATING, ACTIVE, DELETED.
Possible values include:"CREATING"
"DELETED"
"AVAILABLE"
BackupType
— (String
)BackupType:
-
USER
- You create and manage these using the on-demand backup feature. -
SYSTEM
- If you delete a table with point-in-time recovery enabled, aSYSTEM
backup is automatically created and is retained for 35 days (at no additional cost). System backups allow you to restore the deleted table to the state it was in just before the point of deletion. -
AWS_BACKUP
- On-demand backup created by you from Backup service.
"USER"
"SYSTEM"
"AWS_BACKUP"
-
BackupSizeBytes
— (Integer
)Size of the backup in bytes.
LastEvaluatedBackupArn
— (String
)The ARN of the backup last evaluated when the current page of results was returned, inclusive of the current page of results. This value may be specified as the
ExclusiveStartBackupArn
of a newListBackups
operation in order to fetch the next page of results.If
LastEvaluatedBackupArn
is empty, then the last page of results has been processed and there are no more results to be retrieved.If
LastEvaluatedBackupArn
is not empty, this may or may not indicate that there is more data to be returned. All results are guaranteed to have been returned if and only if no value forLastEvaluatedBackupArn
is returned.
-
(AWS.Response)
—
Returns:
listContributorInsights(params = {}, callback) ⇒ AWS.Request
Returns a list of ContributorInsightsSummary for a table and all its global secondary indexes.
Service Reference:
Examples:
Calling the listContributorInsights operation
var params = { MaxResults: 'NUMBER_VALUE', NextToken: 'STRING_VALUE', TableName: 'STRING_VALUE' }; dynamodb.listContributorInsights(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
NextToken
— (String
)A token to for the desired page, if there is one.
MaxResults
— (Integer
)Maximum number of results to return per page.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ContributorInsightsSummaries
— (Array<map>
)A list of ContributorInsightsSummary.
TableName
— (String
)Name of the table associated with the summary.
IndexName
— (String
)Name of the index associated with the summary, if any.
ContributorInsightsStatus
— (String
)Describes the current status for contributor insights for the given table and index, if applicable.
Possible values include:"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"FAILED"
NextToken
— (String
)A token to go to the next page if there is one.
-
(AWS.Response)
—
Returns:
listExports(params = {}, callback) ⇒ AWS.Request
Lists completed exports within the past 90 days.
Service Reference:
Examples:
Calling the listExports operation
var params = { MaxResults: 'NUMBER_VALUE', NextToken: 'STRING_VALUE', TableArn: 'STRING_VALUE' }; dynamodb.listExports(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableArn
— (String
)The Amazon Resource Name (ARN) associated with the exported table.
MaxResults
— (Integer
)Maximum number of results to return per page.
NextToken
— (String
)An optional string that, if supplied, must be copied from the output of a previous call to
ListExports
. When provided in this manner, the API fetches the next page of results.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ExportSummaries
— (Array<map>
)A list of
ExportSummary
objects.ExportArn
— (String
)The Amazon Resource Name (ARN) of the export.
ExportStatus
— (String
)Export can be in one of the following states: IN_PROGRESS, COMPLETED, or FAILED.
Possible values include:"IN_PROGRESS"
"COMPLETED"
"FAILED"
ExportType
— (String
)The type of export that was performed. Valid values are
Possible values include:FULL_EXPORT
orINCREMENTAL_EXPORT
."FULL_EXPORT"
"INCREMENTAL_EXPORT"
NextToken
— (String
)If this value is returned, there are additional results to be displayed. To retrieve them, call
ListExports
again, withNextToken
set to this value.
-
(AWS.Response)
—
Returns:
listGlobalTables(params = {}, callback) ⇒ AWS.Request
Lists all global tables that have a replica in the specified Region.
This documentation is for version 2017.11.29 (Legacy) of global tables, which should be avoided for new global tables. Customers should use Global Tables version 2019.11.21 (Current) when possible, because it provides greater flexibility, higher efficiency, and consumes less write capacity than 2017.11.29 (Legacy).
To determine which version you're using, see Determining the global table version you are using. To update existing global tables from version 2017.11.29 (Legacy) to version 2019.11.21 (Current), see Upgrading global tables.
Service Reference:
Examples:
Calling the listGlobalTables operation
var params = { ExclusiveStartGlobalTableName: 'STRING_VALUE', Limit: 'NUMBER_VALUE', RegionName: 'STRING_VALUE' }; dynamodb.listGlobalTables(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ExclusiveStartGlobalTableName
— (String
)The first global table name that this operation will evaluate.
Limit
— (Integer
)The maximum number of table names to return, if the parameter is not specified DynamoDB defaults to 100.
If the number of global tables DynamoDB finds reaches this limit, it stops the operation and returns the table names collected up to that point, with a table name in the
LastEvaluatedGlobalTableName
to apply in a subsequent operation to theExclusiveStartGlobalTableName
parameter.RegionName
— (String
)Lists the global tables in a specific Region.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:GlobalTables
— (Array<map>
)List of global table names.
GlobalTableName
— (String
)The global table name.
ReplicationGroup
— (Array<map>
)The Regions where the global table has replicas.
RegionName
— (String
)The Region where the replica needs to be created.
LastEvaluatedGlobalTableName
— (String
)Last evaluated global table name.
-
(AWS.Response)
—
Returns:
listImports(params = {}, callback) ⇒ AWS.Request
Lists completed imports within the past 90 days.
Service Reference:
Examples:
Calling the listImports operation
var params = { NextToken: 'STRING_VALUE', PageSize: 'NUMBER_VALUE', TableArn: 'STRING_VALUE' }; dynamodb.listImports(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableArn
— (String
)The Amazon Resource Name (ARN) associated with the table that was imported to.
PageSize
— (Integer
)The number of
ImportSummary
objects returned in a single page.NextToken
— (String
)An optional string that, if supplied, must be copied from the output of a previous call to
ListImports
. When provided in this manner, the API fetches the next page of results.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:ImportSummaryList
— (Array<map>
)A list of
ImportSummary
objects.ImportArn
— (String
)The Amazon Resource Number (ARN) corresponding to the import request.
ImportStatus
— (String
)The status of the import operation.
Possible values include:"IN_PROGRESS"
"COMPLETED"
"CANCELLING"
"CANCELLED"
"FAILED"
TableArn
— (String
)The Amazon Resource Number (ARN) of the table being imported into.
S3BucketSource
— (map
)The path and S3 bucket of the source file that is being imported. This includes the S3Bucket (required), S3KeyPrefix (optional) and S3BucketOwner (optional if the bucket is owned by the requester).
S3BucketOwner
— (String
)The account number of the S3 bucket that is being imported from. If the bucket is owned by the requester this is optional.
S3Bucket
— required — (String
)The S3 bucket that is being imported from.
S3KeyPrefix
— (String
)The key prefix shared by all S3 Objects that are being imported.
CloudWatchLogGroupArn
— (String
)The Amazon Resource Number (ARN) of the Cloudwatch Log Group associated with this import task.
InputFormat
— (String
)The format of the source data. Valid values are
Possible values include:CSV
,DYNAMODB_JSON
orION
."DYNAMODB_JSON"
"ION"
"CSV"
StartTime
— (Date
)The time at which this import task began.
EndTime
— (Date
)The time at which this import task ended. (Does this include the successful complete creation of the table it was imported to?)
NextToken
— (String
)If this value is returned, there are additional results to be displayed. To retrieve them, call
ListImports
again, withNextToken
set to this value.
-
(AWS.Response)
—
Returns:
listTables(params = {}, callback) ⇒ AWS.Request
Returns an array of table names associated with the current account and endpoint. The output from
ListTables
is paginated, with each page returning a maximum of 100 table names.Service Reference:
Examples:
To list tables
/* This example lists all of the tables associated with the current AWS account and endpoint. */ var params = { }; dynamodb.listTables(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { TableNames: [ "Forum", "ProductCatalog", "Reply", "Thread" ] } */ });
Calling the listTables operation
var params = { ExclusiveStartTableName: 'STRING_VALUE', Limit: 'NUMBER_VALUE' }; dynamodb.listTables(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ExclusiveStartTableName
— (String
)The first table name that this operation will evaluate. Use the value that was returned for
LastEvaluatedTableName
in a previous operation, so that you can obtain the next page of results.Limit
— (Integer
)A maximum number of table names to return. If this parameter is not specified, the limit is 100.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableNames
— (Array<String>
)The names of the tables associated with the current account at the current endpoint. The maximum size of this array is 100.
If
LastEvaluatedTableName
also appears in the output, you can use this value as theExclusiveStartTableName
parameter in a subsequentListTables
request and obtain the next page of results.LastEvaluatedTableName
— (String
)The name of the last table in the current page of results. Use this value as the
ExclusiveStartTableName
in a new request to obtain the next page of results, until all the table names are returned.If you do not receive a
LastEvaluatedTableName
value in the response, this means that there are no more table names to be retrieved.
-
(AWS.Response)
—
Returns:
listTagsOfResource(params = {}, callback) ⇒ AWS.Request
List all tags on an Amazon DynamoDB resource. You can call ListTagsOfResource up to 10 times per second, per account.
For an overview on tagging DynamoDB resources, see Tagging for DynamoDB in the Amazon DynamoDB Developer Guide.
Service Reference:
Examples:
Calling the listTagsOfResource operation
var params = { ResourceArn: 'STRING_VALUE', /* required */ NextToken: 'STRING_VALUE' }; dynamodb.listTagsOfResource(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ResourceArn
— (String
)The Amazon DynamoDB resource with tags to be listed. This value is an Amazon Resource Name (ARN).
NextToken
— (String
)An optional string that, if supplied, must be copied from the output of a previous call to ListTagOfResource. When provided in this manner, this API fetches the next page of results.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Tags
— (Array<map>
)The tags currently associated with the Amazon DynamoDB resource.
Key
— required — (String
)The key of the tag. Tag keys are case sensitive. Each DynamoDB table can only have up to one tag with the same key. If you try to add an existing tag (same key), the existing tag value will be updated to the new value.
Value
— required — (String
)The value of the tag. Tag values are case-sensitive and can be null.
NextToken
— (String
)If this value is returned, there are additional results to be displayed. To retrieve them, call ListTagsOfResource again, with NextToken set to this value.
-
(AWS.Response)
—
Returns:
putItem(params = {}, callback) ⇒ AWS.Request
Creates a new item, or replaces an old item with a new item. If an item that has the same primary key as the new item already exists in the specified table, the new item completely replaces the existing item. You can perform a conditional put operation (add a new item if one with the specified primary key doesn't exist), or replace an existing item if it has certain attribute values. You can return the item's attribute values in the same operation, using the
ReturnValues
parameter.When you add an item, the primary key attributes are the only required attributes.
Empty String and Binary attribute values are allowed. Attribute values of type String and Binary must have a length greater than zero if the attribute is used as a key attribute for a table or index. Set type attributes cannot be empty.
Invalid Requests with empty values will be rejected with a
ValidationException
exception.Note: To prevent a new item from replacing an existing item, use a conditional expression that contains theattribute_not_exists
function with the name of the attribute being used as the partition key for the table. Since every record must contain that attribute, theattribute_not_exists
function will only succeed if no matching item exists.For more information about
PutItem
, see Working with Items in the Amazon DynamoDB Developer Guide.Service Reference:
Examples:
To add an item to a table
/* This example adds a new item to the Music table. */ var params = { Item: { "AlbumTitle": { S: "Somewhat Famous" }, "Artist": { S: "No One You Know" }, "SongTitle": { S: "Call Me Today" } }, ReturnConsumedCapacity: "TOTAL", TableName: "Music" }; dynamodb.putItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { ConsumedCapacity: { CapacityUnits: 1, TableName: "Music" } } */ });
Calling the putItem operation
var params = { Item: { /* required */ '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ }, TableName: 'STRING_VALUE', /* required */ ConditionExpression: 'STRING_VALUE', ConditionalOperator: AND | OR, Expected: { '<AttributeName>': { AttributeValueList: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ], ComparisonOperator: EQ | NE | IN | LE | LT | GE | GT | BETWEEN | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH, Exists: true || false, Value: { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] } }, /* '<AttributeName>': ... */ }, ExpressionAttributeNames: { '<ExpressionAttributeNameVariable>': 'STRING_VALUE', /* '<ExpressionAttributeNameVariable>': ... */ }, ExpressionAttributeValues: { '<ExpressionAttributeValueVariable>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<ExpressionAttributeValueVariable>': ... */ }, ReturnConsumedCapacity: INDEXES | TOTAL | NONE, ReturnItemCollectionMetrics: SIZE | NONE, ReturnValues: NONE | ALL_OLD | UPDATED_OLD | ALL_NEW | UPDATED_NEW, ReturnValuesOnConditionCheckFailure: ALL_OLD | NONE }; dynamodb.putItem(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table to contain the item. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
Item
— (map<map>
)A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item.
You must provide all of the attributes for the primary key. For example, with a simple primary key, you only need to provide a value for the partition key. For a composite primary key, you must provide both values for both the partition key and the sort key.
If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition.
Empty String and Binary attribute values are allowed. Attribute values of type String and Binary must have a length greater than zero if the attribute is used as a key attribute for a table or index.
For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
Each element in the
Item
map is anAttributeValue
object.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
Expected
— (map<map>
)This is a legacy parameter. Use
ConditionExpression
instead. For more information, see Expected in the Amazon DynamoDB Developer Guide.Value
— (map
)Represents the data for the expected attribute.
Each attribute value is described as a name-value pair. The name is the data type, and the value is the data itself.
For more information, see Data Types in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
Exists
— (Boolean
)Causes DynamoDB to evaluate the value before attempting a conditional operation:
-
If
Exists
istrue
, DynamoDB will check to see if that attribute value already exists in the table. If it is found, then the operation succeeds. If it is not found, the operation fails with aConditionCheckFailedException
. -
If
Exists
isfalse
, DynamoDB assumes that the attribute value does not exist in the table. If in fact the value does not exist, then the assumption is valid and the operation succeeds. If the value is found, despite the assumption that it does not exist, the operation fails with aConditionCheckFailedException
.
The default setting for
Exists
istrue
. If you supply aValue
all by itself, DynamoDB assumes the attribute exists: You don't have to setExists
totrue
, because it is implied.DynamoDB returns a
ValidationException
if:-
Exists
istrue
but there is noValue
to check. (You expect a value to exist, but don't specify what that value is.) -
Exists
isfalse
but you also provide aValue
. (You cannot expect an attribute to have a value, while also expecting it not to exist.)
-
ComparisonOperator
— (String
)A comparator for evaluating attributes in the
AttributeValueList
. For example, equals, greater than, less than, etc.The following comparison operators are available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
The following are descriptions of each comparison operator.
-
EQ
: Equal.EQ
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
NE
: Not equal.NE
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
LE
: Less than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
LT
: Less than.AttributeValueList
can contain only oneAttributeValue
of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GE
: Greater than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GT
: Greater than.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
NOT_NULL
: The attribute exists.NOT_NULL
is supported for all data types, including lists and maps.Note: This operator tests for the existence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNOT_NULL
, the result is a Booleantrue
. This result is because the attribute "a
" exists; its data type is not relevant to theNOT_NULL
comparison operator. -
NULL
: The attribute does not exist.NULL
is supported for all data types, including lists and maps.Note: This operator tests for the nonexistence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNULL
, the result is a Booleanfalse
. This is because the attribute "a
" exists; its data type is not relevant to theNULL
comparison operator. -
CONTAINS
: Checks for a subsequence, or value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is of type String, then the operator checks for a substring match. If the target attribute of the comparison is of type Binary, then the operator looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it finds an exact match with any member of the set.CONTAINS is supported for lists: When evaluating "
a CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
NOT_CONTAINS
: Checks for absence of a subsequence, or absence of a value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is a String, then the operator checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operator checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it does not find an exact match with any member of the set.NOT_CONTAINS is supported for lists: When evaluating "
a NOT CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
BEGINS_WITH
: Checks for a prefix.AttributeValueList
can contain only oneAttributeValue
of type String or Binary (not a Number or a set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type). -
IN
: Checks for matching elements in a list.AttributeValueList
can contain one or moreAttributeValue
elements of type String, Number, or Binary. These attributes are compared against an existing attribute of an item. If any elements of the input are equal to the item attribute, the expression evaluates to true. -
BETWEEN
: Greater than or equal to the first value, and less than or equal to the second value.AttributeValueList
must contain twoAttributeValue
elements of the same type, either String, Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not compare to{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
"EQ"
"NE"
"IN"
"LE"
"LT"
"GE"
"GT"
"BETWEEN"
"NOT_NULL"
"NULL"
"CONTAINS"
"NOT_CONTAINS"
"BEGINS_WITH"
-
AttributeValueList
— (Array<map>
)One or more values to evaluate against the supplied attribute. The number of values in the list depends on the
ComparisonOperator
being used.For type Number, value comparisons are numeric.
String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example,
a
is greater thanA
, anda
is greater thanB
. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
For information on specifying data types in JSON, see JSON Data Format in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ReturnValues
— (String
)Use
ReturnValues
if you want to get the item attributes as they appeared before they were updated with thePutItem
request. ForPutItem
, the valid values are:-
NONE
- IfReturnValues
is not specified, or if its value isNONE
, then nothing is returned. (This setting is the default forReturnValues
.) -
ALL_OLD
- IfPutItem
overwrote an attribute name-value pair, then the content of the old item is returned.
The values returned are strongly consistent.
There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
Note: ThePossible values include:ReturnValues
parameter is used by several DynamoDB operations; however,PutItem
does not recognize any values other thanNONE
orALL_OLD
."NONE"
"ALL_OLD"
"UPDATED_OLD"
"ALL_NEW"
"UPDATED_NEW"
-
ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
ReturnItemCollectionMetrics
— (String
)Determines whether item collection metrics are returned. If set to
Possible values include:SIZE
, the response includes statistics about item collections, if any, that were modified during the operation are returned in the response. If set toNONE
(the default), no statistics are returned."SIZE"
"NONE"
ConditionalOperator
— (String
)This is a legacy parameter. Use
Possible values include:ConditionExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide."AND"
"OR"
ConditionExpression
— (String
)A condition that must be satisfied in order for a conditional
PutItem
operation to succeed.An expression can contain any of the following:
-
Functions:
attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size
These function names are case-sensitive.
-
Comparison operators:
= | <> | < | > | <= | >= | BETWEEN | IN
-
Logical operators:
AND | OR | NOT
For more information on condition expressions, see Condition Expressions in the Amazon DynamoDB Developer Guide.
-
ExpressionAttributeNames
— (map<String>
)One or more substitution tokens for attribute names in an expression. The following are some use cases for using
ExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information on expression attribute names, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
-
ExpressionAttributeValues
— (map<map>
)One or more values that can be substituted in an expression.
Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
Available | Backordered | Discontinued
You would first need to specify
ExpressionAttributeValues
as follows:{ ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
You could then use these values in an expression, such as this:
ProductStatus IN (:avail, :back, :disc)
For more information on expression attribute values, see Condition Expressions in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ReturnValuesOnConditionCheckFailure
— (String
)An optional parameter that returns the item attributes for a
PutItem
operation that failed a condition check.There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
Possible values include:"ALL_OLD"
"NONE"
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Attributes
— (map<map>
)The attribute values as they appeared before the
PutItem
operation, but only ifReturnValues
is specified asALL_OLD
in the request. Each element consists of an attribute name and an attribute value.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsumedCapacity
— (map
)The capacity units consumed by the
PutItem
operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation.ConsumedCapacity
is only returned if theReturnConsumedCapacity
parameter was specified. For more information, see Capacity unity consumption for write operations in the Amazon DynamoDB Developer Guide.TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
ItemCollectionMetrics
— (map
)Information about item collections, if any, that were affected by the
PutItem
operation.ItemCollectionMetrics
is only returned if theReturnItemCollectionMetrics
parameter was specified. If the table does not have any local secondary indexes, this information is not returned in the response.Each
ItemCollectionMetrics
element consists of:-
ItemCollectionKey
- The partition key value of the item collection. This is the same as the partition key value of the item itself. -
SizeEstimateRangeGB
- An estimate of item collection size, in gigabytes. This value is a two-element array containing a lower bound and an upper bound for the estimate. The estimate includes the size of all the items in the table, plus the size of all attributes projected into all of the local secondary indexes on that table. Use this estimate to measure whether a local secondary index is approaching its size limit.The estimate is subject to change over time; therefore, do not rely on the precision or accuracy of the estimate.
ItemCollectionKey
— (map<map>
)The partition key value of the item collection. This value is the same as the partition key value of the item.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
SizeEstimateRangeGB
— (Array<Float>
)An estimate of item collection size, in gigabytes. This value is a two-element array containing a lower bound and an upper bound for the estimate. The estimate includes the size of all the items in the table, plus the size of all attributes projected into all of the local secondary indexes on that table. Use this estimate to measure whether a local secondary index is approaching its size limit.
The estimate is subject to change over time; therefore, do not rely on the precision or accuracy of the estimate.
-
-
(AWS.Response)
—
Returns:
putResourcePolicy(params = {}, callback) ⇒ AWS.Request
Attaches a resource-based policy document to the resource, which can be a table or stream. When you attach a resource-based policy using this API, the policy application is eventually consistent .
PutResourcePolicy
is an idempotent operation; running it multiple times on the same resource using the same policy document will return the same revision ID. If you specify anExpectedRevisionId
that doesn't match the current policy'sRevisionId
, thePolicyNotFoundException
will be returned.Note:PutResourcePolicy
is an asynchronous operation. If you issue aGetResourcePolicy
request immediately after aPutResourcePolicy
request, DynamoDB might return your previous policy, if there was one, or return thePolicyNotFoundException
. This is becauseGetResourcePolicy
uses an eventually consistent query, and the metadata for your policy or table might not be available at that moment. Wait for a few seconds, and then try theGetResourcePolicy
request again.Service Reference:
Examples:
Calling the putResourcePolicy operation
var params = { Policy: 'STRING_VALUE', /* required */ ResourceArn: 'STRING_VALUE', /* required */ ConfirmRemoveSelfResourceAccess: true || false, ExpectedRevisionId: 'STRING_VALUE' }; dynamodb.putResourcePolicy(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ResourceArn
— (String
)The Amazon Resource Name (ARN) of the DynamoDB resource to which the policy will be attached. The resources you can specify include tables and streams.
You can control index permissions using the base table's policy. To specify the same permission level for your table and its indexes, you can provide both the table and index Amazon Resource Name (ARN)s in the
Resource
field of a givenStatement
in your policy document. Alternatively, to specify different permissions for your table, indexes, or both, you can define multipleStatement
fields in your policy document.Policy
— (String
)An Amazon Web Services resource-based policy document in JSON format.
-
The maximum size supported for a resource-based policy document is 20 KB. DynamoDB counts whitespaces when calculating the size of a policy against this limit.
-
Within a resource-based policy, if the action for a DynamoDB service-linked role (SLR) to replicate data for a global table is denied, adding or deleting a replica will fail with an error.
For a full list of all considerations that apply while attaching a resource-based policy, see Resource-based policy considerations.
-
ExpectedRevisionId
— (String
)A string value that you can use to conditionally update your policy. You can provide the revision ID of your existing policy to make mutating requests against that policy.
Note: When you provide an expected revision ID, if the revision ID of the existing policy on the resource doesn't match or if there's no policy attached to the resource, your request will be rejected with aPolicyNotFoundException
.To conditionally attach a policy when no policy exists for the resource, specify
NO_POLICY
for the revision ID.ConfirmRemoveSelfResourceAccess
— (Boolean
)Set this parameter to
true
to confirm that you want to remove your permissions to change the policy of this resource in the future.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:RevisionId
— (String
)A unique string that represents the revision ID of the policy. If you're comparing revision IDs, make sure to always use string comparison logic.
-
(AWS.Response)
—
Returns:
query(params = {}, callback) ⇒ AWS.Request
You must provide the name of the partition key attribute and a single value for that attribute.
Query
returns all items with that partition key value. Optionally, you can provide a sort key attribute and use a comparison operator to refine the search results.Use the
KeyConditionExpression
parameter to provide a specific value for the partition key. TheQuery
operation will return all of the items from the table or index with that partition key value. You can optionally narrow the scope of theQuery
operation by specifying a sort key value and a comparison operator inKeyConditionExpression
. To further refine theQuery
results, you can optionally provide aFilterExpression
. AFilterExpression
determines which items within the results should be returned to you. All of the other results are discarded.A
Query
operation always returns a result set. If no matching items are found, the result set will be empty. Queries that do not return results consume the minimum number of read capacity units for that type of read operation.Note: DynamoDB calculates the number of read capacity units consumed based on item size, not on the amount of data that is returned to an application. The number of capacity units consumed will be the same whether you request all of the attributes (the default behavior) or just some of them (using a projection expression). The number will also be the same whether or not you use aFilterExpression
.Query
results are always sorted by the sort key value. If the data type of the sort key is Number, the results are returned in numeric order; otherwise, the results are returned in order of UTF-8 bytes. By default, the sort order is ascending. To reverse the order, set theScanIndexForward
parameter to false.A single
Query
operation will read up to the maximum number of items set (if using theLimit
parameter) or a maximum of 1 MB of data and then apply any filtering to the results usingFilterExpression
. IfLastEvaluatedKey
is present in the response, you will need to paginate the result set. For more information, see Paginating the Results in the Amazon DynamoDB Developer Guide.FilterExpression
is applied after aQuery
finishes, but before the results are returned. AFilterExpression
cannot contain partition key or sort key attributes. You need to specify those attributes in theKeyConditionExpression
.Note: AQuery
operation can return an empty result set and aLastEvaluatedKey
if all the items read for the page of results are filtered out.You can query a table, a local secondary index, or a global secondary index. For a query on a table or on a local secondary index, you can set the
ConsistentRead
parameter totrue
and obtain a strongly consistent result. Global secondary indexes support eventually consistent reads only, so do not specifyConsistentRead
when querying a global secondary index.Service Reference:
Examples:
To query an item
/* This example queries items in the Music table. The table has a partition key and sort key (Artist and SongTitle), but this query only specifies the partition key value. It returns song titles by the artist named "No One You Know". */ var params = { ExpressionAttributeValues: { ":v1": { S: "No One You Know" } }, KeyConditionExpression: "Artist = :v1", ProjectionExpression: "SongTitle", TableName: "Music" }; dynamodb.query(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { ConsumedCapacity: { }, Count: 2, Items: [ { "SongTitle": { S: "Call Me Today" } } ], ScannedCount: 2 } */ });
Calling the query operation
var params = { TableName: 'STRING_VALUE', /* required */ AttributesToGet: [ 'STRING_VALUE', /* more items */ ], ConditionalOperator: AND | OR, ConsistentRead: true || false, ExclusiveStartKey: { '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ }, ExpressionAttributeNames: { '<ExpressionAttributeNameVariable>': 'STRING_VALUE', /* '<ExpressionAttributeNameVariable>': ... */ }, ExpressionAttributeValues: { '<ExpressionAttributeValueVariable>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<ExpressionAttributeValueVariable>': ... */ }, FilterExpression: 'STRING_VALUE', IndexName: 'STRING_VALUE', KeyConditionExpression: 'STRING_VALUE', KeyConditions: { '<AttributeName>': { ComparisonOperator: EQ | NE | IN | LE | LT | GE | GT | BETWEEN | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH, /* required */ AttributeValueList: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ] }, /* '<AttributeName>': ... */ }, Limit: 'NUMBER_VALUE', ProjectionExpression: 'STRING_VALUE', QueryFilter: { '<AttributeName>': { ComparisonOperator: EQ | NE | IN | LE | LT | GE | GT | BETWEEN | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH, /* required */ AttributeValueList: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ] }, /* '<AttributeName>': ... */ }, ReturnConsumedCapacity: INDEXES | TOTAL | NONE, ScanIndexForward: true || false, Select: ALL_ATTRIBUTES | ALL_PROJECTED_ATTRIBUTES | SPECIFIC_ATTRIBUTES | COUNT }; dynamodb.query(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table containing the requested items. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
IndexName
— (String
)The name of an index to query. This index can be any local secondary index or global secondary index on the table. Note that if you use the
IndexName
parameter, you must also provideTableName.
Select
— (String
)The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
-
ALL_ATTRIBUTES
- Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index, DynamoDB fetches the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required. -
ALL_PROJECTED_ATTRIBUTES
- Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifyingALL_ATTRIBUTES
. -
COUNT
- Returns the number of matching items, rather than the matching items themselves. Note that this uses the same quantity of read capacity units as getting the items, and is subject to the same item size calculations. -
SPECIFIC_ATTRIBUTES
- Returns only the attributes listed inProjectionExpression
. This return value is equivalent to specifyingProjectionExpression
without specifying any value forSelect
.If you query or scan a local secondary index and request only attributes that are projected into that index, the operation will read only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB fetches each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
If neither
Select
norProjectionExpression
are specified, DynamoDB defaults toALL_ATTRIBUTES
when accessing a table, andALL_PROJECTED_ATTRIBUTES
when accessing an index. You cannot use bothSelect
andProjectionExpression
together in a single request, unless the value forSelect
isSPECIFIC_ATTRIBUTES
. (This usage is equivalent to specifyingProjectionExpression
without any value forSelect
.)Note: If you use thePossible values include:ProjectionExpression
parameter, then the value forSelect
can only beSPECIFIC_ATTRIBUTES
. Any other value forSelect
will return an error."ALL_ATTRIBUTES"
"ALL_PROJECTED_ATTRIBUTES"
"SPECIFIC_ATTRIBUTES"
"COUNT"
-
AttributesToGet
— (Array<String>
)This is a legacy parameter. Use
ProjectionExpression
instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.Limit
— (Integer
)The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in
LastEvaluatedKey
to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed dataset size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key inLastEvaluatedKey
to apply in a subsequent operation to continue the operation. For more information, see Query and Scan in the Amazon DynamoDB Developer Guide.ConsistentRead
— (Boolean
)Determines the read consistency model: If set to
true
, then the operation uses strongly consistent reads; otherwise, the operation uses eventually consistent reads.Strongly consistent reads are not supported on global secondary indexes. If you query a global secondary index with
ConsistentRead
set totrue
, you will receive aValidationException
.KeyConditions
— (map<map>
)This is a legacy parameter. Use
KeyConditionExpression
instead. For more information, see KeyConditions in the Amazon DynamoDB Developer Guide.AttributeValueList
— (Array<map>
)One or more values to evaluate against the supplied attribute. The number of values in the list depends on the
ComparisonOperator
being used.For type Number, value comparisons are numeric.
String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example,
a
is greater thanA
, anda
is greater thanB
. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ComparisonOperator
— required — (String
)A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
The following comparison operators are available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
The following are descriptions of each comparison operator.
-
EQ
: Equal.EQ
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
NE
: Not equal.NE
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
LE
: Less than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
LT
: Less than.AttributeValueList
can contain only oneAttributeValue
of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GE
: Greater than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GT
: Greater than.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
NOT_NULL
: The attribute exists.NOT_NULL
is supported for all data types, including lists and maps.Note: This operator tests for the existence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNOT_NULL
, the result is a Booleantrue
. This result is because the attribute "a
" exists; its data type is not relevant to theNOT_NULL
comparison operator. -
NULL
: The attribute does not exist.NULL
is supported for all data types, including lists and maps.Note: This operator tests for the nonexistence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNULL
, the result is a Booleanfalse
. This is because the attribute "a
" exists; its data type is not relevant to theNULL
comparison operator. -
CONTAINS
: Checks for a subsequence, or value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is of type String, then the operator checks for a substring match. If the target attribute of the comparison is of type Binary, then the operator looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it finds an exact match with any member of the set.CONTAINS is supported for lists: When evaluating "
a CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
NOT_CONTAINS
: Checks for absence of a subsequence, or absence of a value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is a String, then the operator checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operator checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it does not find an exact match with any member of the set.NOT_CONTAINS is supported for lists: When evaluating "
a NOT CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
BEGINS_WITH
: Checks for a prefix.AttributeValueList
can contain only oneAttributeValue
of type String or Binary (not a Number or a set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type). -
IN
: Checks for matching elements in a list.AttributeValueList
can contain one or moreAttributeValue
elements of type String, Number, or Binary. These attributes are compared against an existing attribute of an item. If any elements of the input are equal to the item attribute, the expression evaluates to true. -
BETWEEN
: Greater than or equal to the first value, and less than or equal to the second value.AttributeValueList
must contain twoAttributeValue
elements of the same type, either String, Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not compare to{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
For usage examples of
Possible values include:AttributeValueList
andComparisonOperator
, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide."EQ"
"NE"
"IN"
"LE"
"LT"
"GE"
"GT"
"BETWEEN"
"NOT_NULL"
"NULL"
"CONTAINS"
"NOT_CONTAINS"
"BEGINS_WITH"
-
QueryFilter
— (map<map>
)This is a legacy parameter. Use
FilterExpression
instead. For more information, see QueryFilter in the Amazon DynamoDB Developer Guide.AttributeValueList
— (Array<map>
)One or more values to evaluate against the supplied attribute. The number of values in the list depends on the
ComparisonOperator
being used.For type Number, value comparisons are numeric.
String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example,
a
is greater thanA
, anda
is greater thanB
. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ComparisonOperator
— required — (String
)A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
The following comparison operators are available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
The following are descriptions of each comparison operator.
-
EQ
: Equal.EQ
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
NE
: Not equal.NE
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
LE
: Less than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
LT
: Less than.AttributeValueList
can contain only oneAttributeValue
of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GE
: Greater than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GT
: Greater than.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
NOT_NULL
: The attribute exists.NOT_NULL
is supported for all data types, including lists and maps.Note: This operator tests for the existence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNOT_NULL
, the result is a Booleantrue
. This result is because the attribute "a
" exists; its data type is not relevant to theNOT_NULL
comparison operator. -
NULL
: The attribute does not exist.NULL
is supported for all data types, including lists and maps.Note: This operator tests for the nonexistence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNULL
, the result is a Booleanfalse
. This is because the attribute "a
" exists; its data type is not relevant to theNULL
comparison operator. -
CONTAINS
: Checks for a subsequence, or value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is of type String, then the operator checks for a substring match. If the target attribute of the comparison is of type Binary, then the operator looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it finds an exact match with any member of the set.CONTAINS is supported for lists: When evaluating "
a CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
NOT_CONTAINS
: Checks for absence of a subsequence, or absence of a value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is a String, then the operator checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operator checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it does not find an exact match with any member of the set.NOT_CONTAINS is supported for lists: When evaluating "
a NOT CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
BEGINS_WITH
: Checks for a prefix.AttributeValueList
can contain only oneAttributeValue
of type String or Binary (not a Number or a set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type). -
IN
: Checks for matching elements in a list.AttributeValueList
can contain one or moreAttributeValue
elements of type String, Number, or Binary. These attributes are compared against an existing attribute of an item. If any elements of the input are equal to the item attribute, the expression evaluates to true. -
BETWEEN
: Greater than or equal to the first value, and less than or equal to the second value.AttributeValueList
must contain twoAttributeValue
elements of the same type, either String, Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not compare to{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
For usage examples of
Possible values include:AttributeValueList
andComparisonOperator
, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide."EQ"
"NE"
"IN"
"LE"
"LT"
"GE"
"GT"
"BETWEEN"
"NOT_NULL"
"NULL"
"CONTAINS"
"NOT_CONTAINS"
"BEGINS_WITH"
-
ConditionalOperator
— (String
)This is a legacy parameter. Use
Possible values include:FilterExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide."AND"
"OR"
ScanIndexForward
— (Boolean
)Specifies the order for index traversal: If
true
(default), the traversal is performed in ascending order; iffalse
, the traversal is performed in descending order.Items with the same partition key value are stored in sorted order by sort key. If the sort key data type is Number, the results are stored in numeric order. For type String, the results are stored in order of UTF-8 bytes. For type Binary, DynamoDB treats each byte of the binary data as unsigned.
If
ScanIndexForward
istrue
, DynamoDB returns the results in the order in which they are stored (by sort key value). This is the default behavior. IfScanIndexForward
isfalse
, DynamoDB reads the results in reverse order by sort key value, and then returns the results to the client.ExclusiveStartKey
— (map<map>
)The primary key of the first item that this operation will evaluate. Use the value that was returned for
LastEvaluatedKey
in the previous operation.The data type for
ExclusiveStartKey
must be String, Number, or Binary. No set data types are allowed.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
ProjectionExpression
— (String
)A string that identifies one or more attributes to retrieve from the table. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Accessing Item Attributes in the Amazon DynamoDB Developer Guide.
FilterExpression
— (String
)A string that contains conditions that DynamoDB applies after the
Query
operation, but before the data is returned to you. Items that do not satisfy theFilterExpression
criteria are not returned.A
FilterExpression
does not allow key attributes. You cannot define a filter expression based on a partition key or a sort key.Note: AFilterExpression
is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
KeyConditionExpression
— (String
)The condition that specifies the key values for items to be retrieved by the
Query
action.The condition must perform an equality test on a single partition key value.
The condition can optionally perform one of several comparison tests on a single sort key value. This allows
Query
to retrieve one item with a given partition key value and sort key value, or several items that have the same partition key value but different sort key values.The partition key equality test is required, and must be specified in the following format:
partitionKeyName
=:partitionkeyval
If you also want to provide a condition for the sort key, it must be combined using
AND
with the condition for the sort key. Following is an example, using the = comparison operator for the sort key:partitionKeyName
=
:partitionkeyval
AND
sortKeyName
=
:sortkeyval
Valid comparisons for the sort key condition are as follows:
-
sortKeyName
=
:sortkeyval
- true if the sort key value is equal to:sortkeyval
. -
sortKeyName
<
:sortkeyval
- true if the sort key value is less than:sortkeyval
. -
sortKeyName
<=
:sortkeyval
- true if the sort key value is less than or equal to:sortkeyval
. -
sortKeyName
>
:sortkeyval
- true if the sort key value is greater than:sortkeyval
. -
sortKeyName
>=
:sortkeyval
- true if the sort key value is greater than or equal to:sortkeyval
. -
sortKeyName
BETWEEN
:sortkeyval1
AND
:sortkeyval2
- true if the sort key value is greater than or equal to:sortkeyval1
, and less than or equal to:sortkeyval2
. -
begins_with (
sortKeyName
,:sortkeyval
)
- true if the sort key value begins with a particular operand. (You cannot use this function with a sort key that is of type Number.) Note that the function namebegins_with
is case-sensitive.
Use the
ExpressionAttributeValues
parameter to replace tokens such as:partitionval
and:sortval
with actual values at runtime.You can optionally use the
ExpressionAttributeNames
parameter to replace the names of the partition key and sort key with placeholder tokens. This option might be necessary if an attribute name conflicts with a DynamoDB reserved word. For example, the followingKeyConditionExpression
parameter causes an error because Size is a reserved word:-
Size = :myval
To work around this, define a placeholder (such a
#S
) to represent the attribute name Size.KeyConditionExpression
then is as follows:-
#S = :myval
For a list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide.
For more information on
ExpressionAttributeNames
andExpressionAttributeValues
, see Using Placeholders for Attribute Names and Values in the Amazon DynamoDB Developer Guide.-
ExpressionAttributeNames
— (map<String>
)One or more substitution tokens for attribute names in an expression. The following are some use cases for using
ExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information on expression attribute names, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
-
ExpressionAttributeValues
— (map<map>
)One or more values that can be substituted in an expression.
Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
Available | Backordered | Discontinued
You would first need to specify
ExpressionAttributeValues
as follows:{ ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
You could then use these values in an expression, such as this:
ProductStatus IN (:avail, :back, :disc)
For more information on expression attribute values, see Specifying Conditions in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Items
— (Array<map<map>>
)An array of item attributes that match the query criteria. Each element in this array consists of an attribute name and the value for that attribute.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
Count
— (Integer
)The number of items in the response.
If you used a
QueryFilter
in the request, thenCount
is the number of items returned after the filter was applied, andScannedCount
is the number of matching items before the filter was applied.If you did not use a filter in the request, then
Count
andScannedCount
are the same.ScannedCount
— (Integer
)The number of items evaluated, before any
QueryFilter
is applied. A highScannedCount
value with few, or no,Count
results indicates an inefficientQuery
operation. For more information, see Count and ScannedCount in the Amazon DynamoDB Developer Guide.If you did not use a filter in the request, then
ScannedCount
is the same asCount
.LastEvaluatedKey
— (map<map>
)The primary key of the item where the operation stopped, inclusive of the previous result set. Use this value to start a new operation, excluding this value in the new request.
If
LastEvaluatedKey
is empty, then the "last page" of results has been processed and there is no more data to be retrieved.If
LastEvaluatedKey
is not empty, it does not necessarily mean that there is more data in the result set. The only way to know when you have reached the end of the result set is whenLastEvaluatedKey
is empty.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsumedCapacity
— (map
)The capacity units consumed by the
Query
operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation.ConsumedCapacity
is only returned if theReturnConsumedCapacity
parameter was specified. For more information, see Capacity unit consumption for read operations in the Amazon DynamoDB Developer Guide.TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
-
(AWS.Response)
—
Returns:
restoreTableFromBackup(params = {}, callback) ⇒ AWS.Request
Creates a new table from an existing backup. Any number of users can execute up to 50 concurrent restores (any type of restore) in a given account.
You can call
RestoreTableFromBackup
at a maximum rate of 10 times per second.You must manually set up the following on the restored table:
-
Auto scaling policies
-
IAM policies
-
Amazon CloudWatch metrics and alarms
-
Tags
-
Stream settings
-
Time to Live (TTL) settings
Service Reference:
Examples:
Calling the restoreTableFromBackup operation
var params = { BackupArn: 'STRING_VALUE', /* required */ TargetTableName: 'STRING_VALUE', /* required */ BillingModeOverride: PROVISIONED | PAY_PER_REQUEST, GlobalSecondaryIndexOverride: [ { IndexName: 'STRING_VALUE', /* required */ KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], Projection: { /* required */ NonKeyAttributes: [ 'STRING_VALUE', /* more items */ ], ProjectionType: ALL | KEYS_ONLY | INCLUDE }, OnDemandThroughput: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughput: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ } }, /* more items */ ], LocalSecondaryIndexOverride: [ { IndexName: 'STRING_VALUE', /* required */ KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], Projection: { /* required */ NonKeyAttributes: [ 'STRING_VALUE', /* more items */ ], ProjectionType: ALL | KEYS_ONLY | INCLUDE } }, /* more items */ ], OnDemandThroughputOverride: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughputOverride: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ }, SSESpecificationOverride: { Enabled: true || false, KMSMasterKeyId: 'STRING_VALUE', SSEType: AES256 | KMS } }; dynamodb.restoreTableFromBackup(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TargetTableName
— (String
)The name of the new table to which the backup must be restored.
BackupArn
— (String
)The Amazon Resource Name (ARN) associated with the backup.
BillingModeOverride
— (String
)The billing mode of the restored table.
Possible values include:"PROVISIONED"
"PAY_PER_REQUEST"
GlobalSecondaryIndexOverride
— (Array<map>
)List of global secondary indexes for the restored table. The indexes provided should match existing secondary indexes. You can choose to exclude some or all of the indexes at the time of restore.
IndexName
— required — (String
)The name of the global secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
LocalSecondaryIndexOverride
— (Array<map>
)List of local secondary indexes for the restored table. The indexes provided should match existing secondary indexes. You can choose to exclude some or all of the indexes at the time of restore.
IndexName
— required — (String
)The name of the local secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the local secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughputOverride
— (map
)Provisioned throughput settings for the restored table.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughputOverride
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
SSESpecificationOverride
— (map
)The new server-side encryption settings for the restored table.
Enabled
— (Boolean
)Indicates whether server-side encryption is done using an Amazon Web Services managed key or an Amazon Web Services owned key. If enabled (true), server-side encryption type is set to
KMS
and an Amazon Web Services managed key is used (KMS charges apply). If disabled (false) or not specified, server-side encryption is set to Amazon Web Services owned key.SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyId
— (String
)The KMS key that should be used for the KMS encryption. To specify a key, use its key ID, Amazon Resource Name (ARN), alias name, or alias ARN. Note that you should only provide this parameter if the key is different from the default DynamoDB key
alias/aws/dynamodb
.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableDescription
— (map
)The description of the table created from an existing backup.
AttributeDefinitions
— (Array<map>
)An array of
AttributeDefinition
objects. Each of these objects describes one attribute in the table and index key schema.Each
AttributeDefinition
object in this array is composed of:-
AttributeName
- The name of the attribute. -
AttributeType
- The data type for the attribute.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
-
TableName
— (String
)The name of the table.
KeySchema
— (Array<map>
)The primary key structure for the table. Each
KeySchemaElement
consists of:-
AttributeName
- The name of the attribute. -
KeyType
- The role of the attribute:-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value. -
For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
TableStatus
— (String
)The current state of the table:
-
CREATING
- The table is being created. -
UPDATING
- The table/index configuration is being updated. The table/index remains available for data operations whenUPDATING
. -
DELETING
- The table is being deleted. -
ACTIVE
- The table is ready for use. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table in inaccessible. Table operations may fail due to failure to use the KMS key. DynamoDB will initiate the table archival process when a table's KMS key remains inaccessible for more than seven days. -
ARCHIVING
- The table is being archived. Operations are not allowed until archival is complete. -
ARCHIVED
- The table has been archived. See the ArchivalReason for more information.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
"ARCHIVING"
"ARCHIVED"
-
CreationDateTime
— (Date
)The date and time when the table was created, in UNIX epoch time format.
ProvisionedThroughput
— (map
)The provisioned throughput settings for the table, consisting of read and write capacity units, along with data about increases and decreases.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
TableSizeBytes
— (Integer
)The total size of the specified table, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified table. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
TableArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the table.
TableId
— (String
)Unique identifier for the table for which the backup was created.
BillingModeSummary
— (map
)Contains the details for the read/write capacity mode.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
LastUpdateToPayPerRequestDateTime
— (Date
)Represents the time when
PAY_PER_REQUEST
was last set as the read/write capacity mode.
LocalSecondaryIndexes
— (Array<map>
)Represents one or more local secondary indexes on the table. Each index is scoped to a given partition key value. Tables with one or more local secondary indexes are subject to an item collection size limit, where the amount of data within a given item collection cannot exceed 10 GB. Each element is composed of:
-
IndexName
- The name of the local secondary index. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- Only the specified table attributes are projected into the index. The list of projected attributes is inNonKeyAttributes
. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
IndexSizeBytes
- Represents the total size of the index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
ItemCount
- Represents the number of items in the index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)Represents the name of the local secondary index.
KeySchema
— (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
-
GlobalSecondaryIndexes
— (Array<map>
)The global secondary indexes, if any, on the table. Each index is scoped to a given partition key value. Each element is composed of:
-
Backfilling
- If true, then the index is currently in the backfilling phase. Backfilling occurs only when a new global secondary index is added to the table. It is the process by which DynamoDB populates the new index with data from the table. (This attribute does not appear for indexes that were created during aCreateTable
operation.)You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false. (This attribute does not appear for indexes that were created during aCreateTable
operation.) -
IndexName
- The name of the global secondary index. -
IndexSizeBytes
- The total size of the global secondary index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
IndexStatus
- The current status of the global secondary index:-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
-
-
ItemCount
- The number of items in the global secondary index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
ProvisionedThroughput
- The provisioned throughput settings for the global secondary index, consisting of read and write capacity units, along with data about increases and decreases.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)The name of the global secondary index.
KeySchema
— (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexStatus
— (String
)The current state of the global secondary index:
-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
-
Backfilling
— (Boolean
)Indicates whether the index is currently backfilling. Backfilling is the process of reading items from the table and determining whether they can be added to the index. (Not all items will qualify: For example, a partition key cannot have any duplicate values.) If an item can be added to the index, DynamoDB will do so. After all items have been processed, the backfilling operation is complete and
Backfilling
is false.You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false.Note: For indexes that were created during aCreateTable
operation, theBackfilling
attribute does not appear in theDescribeTable
output.ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
StreamSpecification
— (map
)The current DynamoDB Streams configuration for the table.
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
LatestStreamLabel
— (String
)A timestamp, in ISO 8601 format, for this stream.
Note that
LatestStreamLabel
is not a unique identifier for the stream, because it is possible that a stream from another table might have the same timestamp. However, the combination of the following three elements is guaranteed to be unique:-
Amazon Web Services customer ID
-
Table name
-
StreamLabel
-
LatestStreamArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the latest stream for this table.
GlobalTableVersion
— (String
)Represents the version of global tables in use, if the table is replicated across Amazon Web Services Regions.
Replicas
— (Array<map>
)Represents replicas of the table.
RegionName
— (String
)The name of the Region.
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use. -
REGION_DISABLED
- The replica is inaccessible because the Amazon Web Services Region has been disabled.Note: If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table is inaccessible.Note: If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaStatusDescription
— (String
)Detailed information about the replica status.
ReplicaStatusPercentProgress
— (String
)Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.
KMSMasterKeyId
— (String
)The KMS key of the replica that will be used for KMS encryption.
ProvisionedThroughputOverride
— (map
)Replica-specific provisioned throughput. If not described, uses the source table's provisioned throughput settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput settings for the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index settings.
IndexName
— (String
)The name of the global secondary index.
ProvisionedThroughputOverride
— (map
)If not described, uses the source table GSI's read capacity settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
ReplicaInaccessibleDateTime
— (Date
)The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the
ReplicaStatus
property.ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
RestoreSummary
— (map
)Contains details for the restore.
SourceBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup from which the table was restored.
SourceTableArn
— (String
)The ARN of the source table of the backup that is being restored.
RestoreDateTime
— required — (Date
)Point in time or source backup time.
RestoreInProgress
— required — (Boolean
)Indicates if a restore is in progress or not.
SSEDescription
— (map
)The description of the server-side encryption status on the specified table.
Status
— (String
)Represents the current state of server-side encryption. The only supported values are:
-
ENABLED
- Server-side encryption is enabled. -
UPDATING
- Server-side encryption is being updated.
"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"UPDATING"
-
SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyArn
— (String
)The KMS key ARN used for the KMS encryption.
InaccessibleEncryptionDateTime
— (Date
)Indicates the time, in UNIX epoch date format, when DynamoDB detected that the table's KMS key was inaccessible. This attribute will automatically be cleared when DynamoDB detects that the table's KMS key is accessible again. DynamoDB will initiate the table archival process when table's KMS key remains inaccessible for more than seven days from this date.
ArchivalSummary
— (map
)Contains information about the table archive.
ArchivalDateTime
— (Date
)The date and time when table archival was initiated by DynamoDB, in UNIX epoch time format.
ArchivalReason
— (String
)The reason DynamoDB archived the table. Currently, the only possible value is:
-
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The table was archived due to the table's KMS key being inaccessible for more than seven days. An On-Demand backup was created at the archival time.
-
ArchivalBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup the table was archived to, when applicable in the archival reason. If you wish to restore this backup to the same table name, you will need to delete the original table.
TableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
DeletionProtectionEnabled
— (Boolean
)Indicates whether deletion protection is enabled (true) or disabled (false) on the table.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
(AWS.Response)
—
Returns:
restoreTableToPointInTime(params = {}, callback) ⇒ AWS.Request
Restores the specified table to the specified point in time within
EarliestRestorableDateTime
andLatestRestorableDateTime
. You can restore your table to any point in time during the last 35 days. Any number of users can execute up to 50 concurrent restores (any type of restore) in a given account.When you restore using point in time recovery, DynamoDB restores your table data to the state based on the selected date and time (day:hour:minute:second) to a new table.
Along with data, the following are also included on the new restored table using point in time recovery:
-
Global secondary indexes (GSIs)
-
Local secondary indexes (LSIs)
-
Provisioned read and write capacity
-
Encryption settings
All these settings come from the current settings of the source table at the time of restore.
You must manually set up the following on the restored table:
-
Auto scaling policies
-
IAM policies
-
Amazon CloudWatch metrics and alarms
-
Tags
-
Stream settings
-
Time to Live (TTL) settings
-
Point in time recovery settings
Service Reference:
Examples:
Calling the restoreTableToPointInTime operation
var params = { TargetTableName: 'STRING_VALUE', /* required */ BillingModeOverride: PROVISIONED | PAY_PER_REQUEST, GlobalSecondaryIndexOverride: [ { IndexName: 'STRING_VALUE', /* required */ KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], Projection: { /* required */ NonKeyAttributes: [ 'STRING_VALUE', /* more items */ ], ProjectionType: ALL | KEYS_ONLY | INCLUDE }, OnDemandThroughput: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughput: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ } }, /* more items */ ], LocalSecondaryIndexOverride: [ { IndexName: 'STRING_VALUE', /* required */ KeySchema: [ /* required */ { AttributeName: 'STRING_VALUE', /* required */ KeyType: HASH | RANGE /* required */ }, /* more items */ ], Projection: { /* required */ NonKeyAttributes: [ 'STRING_VALUE', /* more items */ ], ProjectionType: ALL | KEYS_ONLY | INCLUDE } }, /* more items */ ], OnDemandThroughputOverride: { MaxReadRequestUnits: 'NUMBER_VALUE', MaxWriteRequestUnits: 'NUMBER_VALUE' }, ProvisionedThroughputOverride: { ReadCapacityUnits: 'NUMBER_VALUE', /* required */ WriteCapacityUnits: 'NUMBER_VALUE' /* required */ }, RestoreDateTime: new Date || 'Wed Dec 31 1969 16:00:00 GMT-0800 (PST)' || 123456789, SSESpecificationOverride: { Enabled: true || false, KMSMasterKeyId: 'STRING_VALUE', SSEType: AES256 | KMS }, SourceTableArn: 'STRING_VALUE', SourceTableName: 'STRING_VALUE', UseLatestRestorableTime: true || false }; dynamodb.restoreTableToPointInTime(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
SourceTableArn
— (String
)The DynamoDB table that will be restored. This value is an Amazon Resource Name (ARN).
SourceTableName
— (String
)Name of the source table that is being restored.
TargetTableName
— (String
)The name of the new table to which it must be restored to.
UseLatestRestorableTime
— (Boolean
)Restore the table to the latest possible time.
LatestRestorableDateTime
is typically 5 minutes before the current time.RestoreDateTime
— (Date
)Time in the past to restore the table to.
BillingModeOverride
— (String
)The billing mode of the restored table.
Possible values include:"PROVISIONED"
"PAY_PER_REQUEST"
GlobalSecondaryIndexOverride
— (Array<map>
)List of global secondary indexes for the restored table. The indexes provided should match existing secondary indexes. You can choose to exclude some or all of the indexes at the time of restore.
IndexName
— required — (String
)The name of the global secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
LocalSecondaryIndexOverride
— (Array<map>
)List of local secondary indexes for the restored table. The indexes provided should match existing secondary indexes. You can choose to exclude some or all of the indexes at the time of restore.
IndexName
— required — (String
)The name of the local secondary index. The name must be unique among all other indexes on this table.
KeySchema
— required — (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— required — (map
)Represents attributes that are copied (projected) from the table into the local secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
ProvisionedThroughputOverride
— (map
)Provisioned throughput settings for the restored table.
ReadCapacityUnits
— required — (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.WriteCapacityUnits
— required — (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
. For more information, see Specifying Read and Write Requirements in the Amazon DynamoDB Developer Guide.If read/write capacity mode is
PAY_PER_REQUEST
the value is set to 0.
OnDemandThroughputOverride
— (map
)Sets the maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
SSESpecificationOverride
— (map
)The new server-side encryption settings for the restored table.
Enabled
— (Boolean
)Indicates whether server-side encryption is done using an Amazon Web Services managed key or an Amazon Web Services owned key. If enabled (true), server-side encryption type is set to
KMS
and an Amazon Web Services managed key is used (KMS charges apply). If disabled (false) or not specified, server-side encryption is set to Amazon Web Services owned key.SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyId
— (String
)The KMS key that should be used for the KMS encryption. To specify a key, use its key ID, Amazon Resource Name (ARN), alias name, or alias ARN. Note that you should only provide this parameter if the key is different from the default DynamoDB key
alias/aws/dynamodb
.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:TableDescription
— (map
)Represents the properties of a table.
AttributeDefinitions
— (Array<map>
)An array of
AttributeDefinition
objects. Each of these objects describes one attribute in the table and index key schema.Each
AttributeDefinition
object in this array is composed of:-
AttributeName
- The name of the attribute. -
AttributeType
- The data type for the attribute.
AttributeName
— required — (String
)A name for the attribute.
AttributeType
— required — (String
)The data type for the attribute, where:
-
S
- the attribute is of type String -
N
- the attribute is of type Number -
B
- the attribute is of type Binary
"S"
"N"
"B"
-
-
TableName
— (String
)The name of the table.
KeySchema
— (Array<map>
)The primary key structure for the table. Each
KeySchemaElement
consists of:-
AttributeName
- The name of the attribute. -
KeyType
- The role of the attribute:-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value. -
For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide.
AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
TableStatus
— (String
)The current state of the table:
-
CREATING
- The table is being created. -
UPDATING
- The table/index configuration is being updated. The table/index remains available for data operations whenUPDATING
. -
DELETING
- The table is being deleted. -
ACTIVE
- The table is ready for use. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table in inaccessible. Table operations may fail due to failure to use the KMS key. DynamoDB will initiate the table archival process when a table's KMS key remains inaccessible for more than seven days. -
ARCHIVING
- The table is being archived. Operations are not allowed until archival is complete. -
ARCHIVED
- The table has been archived. See the ArchivalReason for more information.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
"ARCHIVING"
"ARCHIVED"
-
CreationDateTime
— (Date
)The date and time when the table was created, in UNIX epoch time format.
ProvisionedThroughput
— (map
)The provisioned throughput settings for the table, consisting of read and write capacity units, along with data about increases and decreases.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
TableSizeBytes
— (Integer
)The total size of the specified table, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified table. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
TableArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the table.
TableId
— (String
)Unique identifier for the table for which the backup was created.
BillingModeSummary
— (map
)Contains the details for the read/write capacity mode.
BillingMode
— (String
)Controls how you are charged for read and write throughput and how you manage capacity. This setting can be changed later.
-
PROVISIONED
- Sets the read/write capacity mode toPROVISIONED
. We recommend usingPROVISIONED
for predictable workloads. -
PAY_PER_REQUEST
- Sets the read/write capacity mode toPAY_PER_REQUEST
. We recommend usingPAY_PER_REQUEST
for unpredictable workloads.
"PROVISIONED"
"PAY_PER_REQUEST"
-
LastUpdateToPayPerRequestDateTime
— (Date
)Represents the time when
PAY_PER_REQUEST
was last set as the read/write capacity mode.
LocalSecondaryIndexes
— (Array<map>
)Represents one or more local secondary indexes on the table. Each index is scoped to a given partition key value. Tables with one or more local secondary indexes are subject to an item collection size limit, where the amount of data within a given item collection cannot exceed 10 GB. Each element is composed of:
-
IndexName
- The name of the local secondary index. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- Only the specified table attributes are projected into the index. The list of projected attributes is inNonKeyAttributes
. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
IndexSizeBytes
- Represents the total size of the index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
ItemCount
- Represents the number of items in the index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)Represents the name of the local secondary index.
KeySchema
— (Array<map>
)The complete key schema for the local secondary index, consisting of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
-
GlobalSecondaryIndexes
— (Array<map>
)The global secondary indexes, if any, on the table. Each index is scoped to a given partition key value. Each element is composed of:
-
Backfilling
- If true, then the index is currently in the backfilling phase. Backfilling occurs only when a new global secondary index is added to the table. It is the process by which DynamoDB populates the new index with data from the table. (This attribute does not appear for indexes that were created during aCreateTable
operation.)You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false. (This attribute does not appear for indexes that were created during aCreateTable
operation.) -
IndexName
- The name of the global secondary index. -
IndexSizeBytes
- The total size of the global secondary index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
IndexStatus
- The current status of the global secondary index:-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
-
-
ItemCount
- The number of items in the global secondary index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. -
KeySchema
- Specifies the complete index key schema. The attribute names in the key schema must be between 1 and 255 characters (inclusive). The key schema must begin with the same partition key as the table. -
Projection
- Specifies attributes that are copied (projected) from the table into the index. These are in addition to the primary key attributes and index key attributes, which are automatically projected. Each attribute specification is composed of:-
ProjectionType
- One of the following:-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
-
-
NonKeyAttributes
- A list of one or more non-key attribute names that are projected into the secondary index. The total count of attributes provided inNonKeyAttributes
, summed across all of the secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
-
-
ProvisionedThroughput
- The provisioned throughput settings for the global secondary index, consisting of read and write capacity units, along with data about increases and decreases.
If the table is in the
DELETING
state, no information about indexes will be returned.IndexName
— (String
)The name of the global secondary index.
KeySchema
— (Array<map>
)The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.AttributeName
— required — (String
)The name of a key attribute.
KeyType
— required — (String
)The role that this key attribute will assume:
-
HASH
- partition key -
RANGE
- sort key
Note: The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.Possible values include:"HASH"
"RANGE"
-
-
Projection
— (map
)Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.
ProjectionType
— (String
)The set of attributes that are projected into the index:
-
KEYS_ONLY
- Only the index and primary keys are projected into the index. -
INCLUDE
- In addition to the attributes described inKEYS_ONLY
, the secondary index will include other non-key attributes that you specify. -
ALL
- All of the table attributes are projected into the index.
When using the DynamoDB console,
Possible values include:ALL
is selected by default."ALL"
"KEYS_ONLY"
"INCLUDE"
-
NonKeyAttributes
— (Array<String>
)Represents the non-key attribute names which will be projected into the index.
For local secondary indexes, the total count of
NonKeyAttributes
summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.
IndexStatus
— (String
)The current state of the global secondary index:
-
CREATING
- The index is being created. -
UPDATING
- The index is being updated. -
DELETING
- The index is being deleted. -
ACTIVE
- The index is ready for use.
"CREATING"
"UPDATING"
"DELETING"
"ACTIVE"
-
Backfilling
— (Boolean
)Indicates whether the index is currently backfilling. Backfilling is the process of reading items from the table and determining whether they can be added to the index. (Not all items will qualify: For example, a partition key cannot have any duplicate values.) If an item can be added to the index, DynamoDB will do so. After all items have been processed, the backfilling operation is complete and
Backfilling
is false.You can delete an index that is being created during the
Backfilling
phase whenIndexStatus
is set to CREATING andBackfilling
is true. You can't delete the index that is being created whenIndexStatus
is set to CREATING andBackfilling
is false.Note: For indexes that were created during aCreateTable
operation, theBackfilling
attribute does not appear in theDescribeTable
output.ProvisionedThroughput
— (map
)Represents the provisioned throughput settings for the specified global secondary index.
For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
LastIncreaseDateTime
— (Date
)The date and time of the last provisioned throughput increase for this table.
LastDecreaseDateTime
— (Date
)The date and time of the last provisioned throughput decrease for this table.
NumberOfDecreasesToday
— (Integer
)The number of provisioned throughput decreases for this table during this UTC calendar day. For current maximums on provisioned throughput decreases, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.
ReadCapacityUnits
— (Integer
)The maximum number of strongly consistent reads consumed per second before DynamoDB returns a
ThrottlingException
. Eventually consistent reads require less effort than strongly consistent reads, so a setting of 50ReadCapacityUnits
per second provides 100 eventually consistentReadCapacityUnits
per second.WriteCapacityUnits
— (Integer
)The maximum number of writes consumed per second before DynamoDB returns a
ThrottlingException
.
IndexSizeBytes
— (Integer
)The total size of the specified index, in bytes. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
ItemCount
— (Integer
)The number of items in the specified index. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value.
IndexArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the index.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified global secondary index. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
StreamSpecification
— (map
)The current DynamoDB Streams configuration for the table.
StreamEnabled
— required — (Boolean
)Indicates whether DynamoDB Streams is enabled (true) or disabled (false) on the table.
StreamViewType
— (String
)When an item in the table is modified,
StreamViewType
determines what information is written to the stream for this table. Valid values forStreamViewType
are:-
KEYS_ONLY
- Only the key attributes of the modified item are written to the stream. -
NEW_IMAGE
- The entire item, as it appears after it was modified, is written to the stream. -
OLD_IMAGE
- The entire item, as it appeared before it was modified, is written to the stream. -
NEW_AND_OLD_IMAGES
- Both the new and the old item images of the item are written to the stream.
"NEW_IMAGE"
"OLD_IMAGE"
"NEW_AND_OLD_IMAGES"
"KEYS_ONLY"
-
LatestStreamLabel
— (String
)A timestamp, in ISO 8601 format, for this stream.
Note that
LatestStreamLabel
is not a unique identifier for the stream, because it is possible that a stream from another table might have the same timestamp. However, the combination of the following three elements is guaranteed to be unique:-
Amazon Web Services customer ID
-
Table name
-
StreamLabel
-
LatestStreamArn
— (String
)The Amazon Resource Name (ARN) that uniquely identifies the latest stream for this table.
GlobalTableVersion
— (String
)Represents the version of global tables in use, if the table is replicated across Amazon Web Services Regions.
Replicas
— (Array<map>
)Represents replicas of the table.
RegionName
— (String
)The name of the Region.
ReplicaStatus
— (String
)The current state of the replica:
-
CREATING
- The replica is being created. -
UPDATING
- The replica is being updated. -
DELETING
- The replica is being deleted. -
ACTIVE
- The replica is ready for use. -
REGION_DISABLED
- The replica is inaccessible because the Amazon Web Services Region has been disabled.Note: If the Amazon Web Services Region remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region. -
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The KMS key used to encrypt the table is inaccessible.Note: If the KMS key remains inaccessible for more than 20 hours, DynamoDB will remove this replica from the replication group. The replica will not be deleted and replication will stop from and to this region.
"CREATING"
"CREATION_FAILED"
"UPDATING"
"DELETING"
"ACTIVE"
"REGION_DISABLED"
"INACCESSIBLE_ENCRYPTION_CREDENTIALS"
-
ReplicaStatusDescription
— (String
)Detailed information about the replica status.
ReplicaStatusPercentProgress
— (String
)Specifies the progress of a Create, Update, or Delete action on the replica as a percentage.
KMSMasterKeyId
— (String
)The KMS key of the replica that will be used for KMS encryption.
ProvisionedThroughputOverride
— (map
)Replica-specific provisioned throughput. If not described, uses the source table's provisioned throughput settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput settings for the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
GlobalSecondaryIndexes
— (Array<map>
)Replica-specific global secondary index settings.
IndexName
— (String
)The name of the global secondary index.
ProvisionedThroughputOverride
— (map
)If not described, uses the source table GSI's read capacity settings.
ReadCapacityUnits
— (Integer
)Replica-specific read capacity units. If not specified, uses the source table's read capacity settings.
OnDemandThroughputOverride
— (map
)Overrides the maximum on-demand throughput for the specified global secondary index in the specified replica table.
MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified replica table.
ReplicaInaccessibleDateTime
— (Date
)The time at which the replica was first detected as inaccessible. To determine cause of inaccessibility check the
ReplicaStatus
property.ReplicaTableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
RestoreSummary
— (map
)Contains details for the restore.
SourceBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup from which the table was restored.
SourceTableArn
— (String
)The ARN of the source table of the backup that is being restored.
RestoreDateTime
— required — (Date
)Point in time or source backup time.
RestoreInProgress
— required — (Boolean
)Indicates if a restore is in progress or not.
SSEDescription
— (map
)The description of the server-side encryption status on the specified table.
Status
— (String
)Represents the current state of server-side encryption. The only supported values are:
-
ENABLED
- Server-side encryption is enabled. -
UPDATING
- Server-side encryption is being updated.
"ENABLING"
"ENABLED"
"DISABLING"
"DISABLED"
"UPDATING"
-
SSEType
— (String
)Server-side encryption type. The only supported value is:
-
KMS
- Server-side encryption that uses Key Management Service. The key is stored in your account and is managed by KMS (KMS charges apply).
"AES256"
"KMS"
-
KMSMasterKeyArn
— (String
)The KMS key ARN used for the KMS encryption.
InaccessibleEncryptionDateTime
— (Date
)Indicates the time, in UNIX epoch date format, when DynamoDB detected that the table's KMS key was inaccessible. This attribute will automatically be cleared when DynamoDB detects that the table's KMS key is accessible again. DynamoDB will initiate the table archival process when table's KMS key remains inaccessible for more than seven days from this date.
ArchivalSummary
— (map
)Contains information about the table archive.
ArchivalDateTime
— (Date
)The date and time when table archival was initiated by DynamoDB, in UNIX epoch time format.
ArchivalReason
— (String
)The reason DynamoDB archived the table. Currently, the only possible value is:
-
INACCESSIBLE_ENCRYPTION_CREDENTIALS
- The table was archived due to the table's KMS key being inaccessible for more than seven days. An On-Demand backup was created at the archival time.
-
ArchivalBackupArn
— (String
)The Amazon Resource Name (ARN) of the backup the table was archived to, when applicable in the archival reason. If you wish to restore this backup to the same table name, you will need to delete the original table.
TableClassSummary
— (map
)Contains details of the table class.
TableClass
— (String
)The table class of the specified table. Valid values are
Possible values include:STANDARD
andSTANDARD_INFREQUENT_ACCESS
."STANDARD"
"STANDARD_INFREQUENT_ACCESS"
LastUpdateDateTime
— (Date
)The date and time at which the table class was last updated.
DeletionProtectionEnabled
— (Boolean
)Indicates whether deletion protection is enabled (true) or disabled (false) on the table.
OnDemandThroughput
— (map
)The maximum number of read and write units for the specified on-demand table. If you use this parameter, you must specify
MaxReadRequestUnits
,MaxWriteRequestUnits
, or both.MaxReadRequestUnits
— (Integer
)Maximum number of read request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxReadRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxReadRequestUnits
to -1.MaxWriteRequestUnits
— (Integer
)Maximum number of write request units for the specified table.
To specify a maximum
OnDemandThroughput
on your table, set the value ofMaxWriteRequestUnits
as greater than or equal to 1. To remove the maximumOnDemandThroughput
that is currently set on your table, set the value ofMaxWriteRequestUnits
to -1.
-
(AWS.Response)
—
Returns:
scan(params = {}, callback) ⇒ AWS.Request
The
Scan
operation returns one or more items and item attributes by accessing every item in a table or a secondary index. To have DynamoDB return fewer items, you can provide aFilterExpression
operation.If the total size of scanned items exceeds the maximum dataset size limit of 1 MB, the scan completes and results are returned to the user. The
LastEvaluatedKey
value is also returned and the requestor can use theLastEvaluatedKey
to continue the scan in a subsequent operation. Each scan response also includes number of items that were scanned (ScannedCount) as part of the request. If using aFilterExpression
, a scan result can result in no items meeting the criteria and theCount
will result in zero. If you did not use aFilterExpression
in the scan request, thenCount
is the same asScannedCount
.Note:Count
andScannedCount
only return the count of items specific to a single scan request and, unless the table is less than 1MB, do not represent the total number of items in the table.A single
Scan
operation first reads up to the maximum number of items set (if using theLimit
parameter) or a maximum of 1 MB of data and then applies any filtering to the results if aFilterExpression
is provided. IfLastEvaluatedKey
is present in the response, pagination is required to complete the full table scan. For more information, see Paginating the Results in the Amazon DynamoDB Developer Guide.Scan
operations proceed sequentially; however, for faster performance on a large table or secondary index, applications can request a parallelScan
operation by providing theSegment
andTotalSegments
parameters. For more information, see Parallel Scan in the Amazon DynamoDB Developer Guide.By default, a
Scan
uses eventually consistent reads when accessing the items in a table. Therefore, the results from an eventually consistentScan
may not include the latest item changes at the time the scan iterates through each item in the table. If you require a strongly consistent read of each item as the scan iterates through the items in the table, you can set theConsistentRead
parameter to true. Strong consistency only relates to the consistency of the read at the item level.Note: DynamoDB does not provide snapshot isolation for a scan operation when theConsistentRead
parameter is set to true. Thus, a DynamoDB scan operation does not guarantee that all reads in a scan see a consistent snapshot of the table when the scan operation was requested.Service Reference:
Examples:
To scan a table
/* This example scans the entire Music table, and then narrows the results to songs by the artist "No One You Know". For each item, only the album title and song title are returned. */ var params = { ExpressionAttributeNames: { "#AT": "AlbumTitle", "#ST": "SongTitle" }, ExpressionAttributeValues: { ":a": { S: "No One You Know" } }, FilterExpression: "Artist = :a", ProjectionExpression: "#ST, #AT", TableName: "Music" }; dynamodb.scan(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response /* data = { ConsumedCapacity: { }, Count: 2, Items: [ { "AlbumTitle": { S: "Somewhat Famous" }, "SongTitle": { S: "Call Me Today" } }, { "AlbumTitle": { S: "Blue Sky Blues" }, "SongTitle": { S: "Scared of My Shadow" } } ], ScannedCount: 3 } */ });
Calling the scan operation
var params = { TableName: 'STRING_VALUE', /* required */ AttributesToGet: [ 'STRING_VALUE', /* more items */ ], ConditionalOperator: AND | OR, ConsistentRead: true || false, ExclusiveStartKey: { '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ }, ExpressionAttributeNames: { '<ExpressionAttributeNameVariable>': 'STRING_VALUE', /* '<ExpressionAttributeNameVariable>': ... */ }, ExpressionAttributeValues: { '<ExpressionAttributeValueVariable>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<ExpressionAttributeValueVariable>': ... */ }, FilterExpression: 'STRING_VALUE', IndexName: 'STRING_VALUE', Limit: 'NUMBER_VALUE', ProjectionExpression: 'STRING_VALUE', ReturnConsumedCapacity: INDEXES | TOTAL | NONE, ScanFilter: { '<AttributeName>': { ComparisonOperator: EQ | NE | IN | LE | LT | GE | GT | BETWEEN | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH, /* required */ AttributeValueList: [ { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* more items */ ] }, /* '<AttributeName>': ... */ }, Segment: 'NUMBER_VALUE', Select: ALL_ATTRIBUTES | ALL_PROJECTED_ATTRIBUTES | SPECIFIC_ATTRIBUTES | COUNT, TotalSegments: 'NUMBER_VALUE' }; dynamodb.scan(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
TableName
— (String
)The name of the table containing the requested items or if you provide
IndexName
, the name of the table to which that index belongs.You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
IndexName
— (String
)The name of a secondary index to scan. This index can be any local secondary index or global secondary index. Note that if you use the
IndexName
parameter, you must also provideTableName
.AttributesToGet
— (Array<String>
)This is a legacy parameter. Use
ProjectionExpression
instead. For more information, see AttributesToGet in the Amazon DynamoDB Developer Guide.Limit
— (Integer
)The maximum number of items to evaluate (not necessarily the number of matching items). If DynamoDB processes the number of items up to the limit while processing the results, it stops the operation and returns the matching values up to that point, and a key in
LastEvaluatedKey
to apply in a subsequent operation, so that you can pick up where you left off. Also, if the processed dataset size exceeds 1 MB before DynamoDB reaches this limit, it stops the operation and returns the matching values up to the limit, and a key inLastEvaluatedKey
to apply in a subsequent operation to continue the operation. For more information, see Working with Queries in the Amazon DynamoDB Developer Guide.Select
— (String
)The attributes to be returned in the result. You can retrieve all item attributes, specific item attributes, the count of matching items, or in the case of an index, some or all of the attributes projected into the index.
-
ALL_ATTRIBUTES
- Returns all of the item attributes from the specified table or index. If you query a local secondary index, then for each matching item in the index, DynamoDB fetches the entire item from the parent table. If the index is configured to project all item attributes, then all of the data can be obtained from the local secondary index, and no fetching is required. -
ALL_PROJECTED_ATTRIBUTES
- Allowed only when querying an index. Retrieves all attributes that have been projected into the index. If the index is configured to project all attributes, this return value is equivalent to specifyingALL_ATTRIBUTES
. -
COUNT
- Returns the number of matching items, rather than the matching items themselves. Note that this uses the same quantity of read capacity units as getting the items, and is subject to the same item size calculations. -
SPECIFIC_ATTRIBUTES
- Returns only the attributes listed inProjectionExpression
. This return value is equivalent to specifyingProjectionExpression
without specifying any value forSelect
.If you query or scan a local secondary index and request only attributes that are projected into that index, the operation reads only the index and not the table. If any of the requested attributes are not projected into the local secondary index, DynamoDB fetches each of these attributes from the parent table. This extra fetching incurs additional throughput cost and latency.
If you query or scan a global secondary index, you can only request attributes that are projected into the index. Global secondary index queries cannot fetch attributes from the parent table.
If neither
Select
norProjectionExpression
are specified, DynamoDB defaults toALL_ATTRIBUTES
when accessing a table, andALL_PROJECTED_ATTRIBUTES
when accessing an index. You cannot use bothSelect
andProjectionExpression
together in a single request, unless the value forSelect
isSPECIFIC_ATTRIBUTES
. (This usage is equivalent to specifyingProjectionExpression
without any value forSelect
.)Note: If you use thePossible values include:ProjectionExpression
parameter, then the value forSelect
can only beSPECIFIC_ATTRIBUTES
. Any other value forSelect
will return an error."ALL_ATTRIBUTES"
"ALL_PROJECTED_ATTRIBUTES"
"SPECIFIC_ATTRIBUTES"
"COUNT"
-
ScanFilter
— (map<map>
)This is a legacy parameter. Use
FilterExpression
instead. For more information, see ScanFilter in the Amazon DynamoDB Developer Guide.AttributeValueList
— (Array<map>
)One or more values to evaluate against the supplied attribute. The number of values in the list depends on the
ComparisonOperator
being used.For type Number, value comparisons are numeric.
String value comparisons for greater than, equals, or less than are based on ASCII character code values. For example,
a
is greater thanA
, anda
is greater thanB
. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.For Binary, DynamoDB treats each byte of the binary data as unsigned when it compares binary values.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ComparisonOperator
— required — (String
)A comparator for evaluating attributes. For example, equals, greater than, less than, etc.
The following comparison operators are available:
EQ | NE | LE | LT | GE | GT | NOT_NULL | NULL | CONTAINS | NOT_CONTAINS | BEGINS_WITH | IN | BETWEEN
The following are descriptions of each comparison operator.
-
EQ
: Equal.EQ
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
NE
: Not equal.NE
is supported for all data types, including lists and maps.AttributeValueList
can contain only oneAttributeValue
of type String, Number, Binary, String Set, Number Set, or Binary Set. If an item contains anAttributeValue
of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not equal{"NS":["6", "2", "1"]}
. -
LE
: Less than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
LT
: Less than.AttributeValueList
can contain only oneAttributeValue
of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GE
: Greater than or equal.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
GT
: Greater than.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not equal{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
. -
NOT_NULL
: The attribute exists.NOT_NULL
is supported for all data types, including lists and maps.Note: This operator tests for the existence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNOT_NULL
, the result is a Booleantrue
. This result is because the attribute "a
" exists; its data type is not relevant to theNOT_NULL
comparison operator. -
NULL
: The attribute does not exist.NULL
is supported for all data types, including lists and maps.Note: This operator tests for the nonexistence of an attribute, not its data type. If the data type of attribute "a
" is null, and you evaluate it usingNULL
, the result is a Booleanfalse
. This is because the attribute "a
" exists; its data type is not relevant to theNULL
comparison operator. -
CONTAINS
: Checks for a subsequence, or value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is of type String, then the operator checks for a substring match. If the target attribute of the comparison is of type Binary, then the operator looks for a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it finds an exact match with any member of the set.CONTAINS is supported for lists: When evaluating "
a CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
NOT_CONTAINS
: Checks for absence of a subsequence, or absence of a value in a set.AttributeValueList
can contain only oneAttributeValue
element of type String, Number, or Binary (not a set type). If the target attribute of the comparison is a String, then the operator checks for the absence of a substring match. If the target attribute of the comparison is Binary, then the operator checks for the absence of a subsequence of the target that matches the input. If the target attribute of the comparison is a set ("SS
", "NS
", or "BS
"), then the operator evaluates to true if it does not find an exact match with any member of the set.NOT_CONTAINS is supported for lists: When evaluating "
a NOT CONTAINS b
", "a
" can be a list; however, "b
" cannot be a set, a map, or a list. -
BEGINS_WITH
: Checks for a prefix.AttributeValueList
can contain only oneAttributeValue
of type String or Binary (not a Number or a set type). The target attribute of the comparison must be of type String or Binary (not a Number or a set type). -
IN
: Checks for matching elements in a list.AttributeValueList
can contain one or moreAttributeValue
elements of type String, Number, or Binary. These attributes are compared against an existing attribute of an item. If any elements of the input are equal to the item attribute, the expression evaluates to true. -
BETWEEN
: Greater than or equal to the first value, and less than or equal to the second value.AttributeValueList
must contain twoAttributeValue
elements of the same type, either String, Number, or Binary (not a set type). A target attribute matches if the target value is greater than, or equal to, the first element and less than, or equal to, the second element. If an item contains anAttributeValue
element of a different type than the one provided in the request, the value does not match. For example,{"S":"6"}
does not compare to{"N":"6"}
. Also,{"N":"6"}
does not compare to{"NS":["6", "2", "1"]}
For usage examples of
Possible values include:AttributeValueList
andComparisonOperator
, see Legacy Conditional Parameters in the Amazon DynamoDB Developer Guide."EQ"
"NE"
"IN"
"LE"
"LT"
"GE"
"GT"
"BETWEEN"
"NOT_NULL"
"NULL"
"CONTAINS"
"NOT_CONTAINS"
"BEGINS_WITH"
-
ConditionalOperator
— (String
)This is a legacy parameter. Use
Possible values include:FilterExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide."AND"
"OR"
ExclusiveStartKey
— (map<map>
)The primary key of the first item that this operation will evaluate. Use the value that was returned for
LastEvaluatedKey
in the previous operation.The data type for
ExclusiveStartKey
must be String, Number or Binary. No set data types are allowed.In a parallel scan, a
Scan
request that includesExclusiveStartKey
must specify the same segment whose previousScan
returned the corresponding value ofLastEvaluatedKey
.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ReturnConsumedCapacity
— (String
)Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
"INDEXES"
"TOTAL"
"NONE"
-
TotalSegments
— (Integer
)For a parallel
Scan
request,TotalSegments
represents the total number of segments into which theScan
operation will be divided. The value ofTotalSegments
corresponds to the number of application workers that will perform the parallel scan. For example, if you want to use four application threads to scan a table or an index, specify aTotalSegments
value of 4.The value for
TotalSegments
must be greater than or equal to 1, and less than or equal to 1000000. If you specify aTotalSegments
value of 1, theScan
operation will be sequential rather than parallel.If you specify
TotalSegments
, you must also specifySegment
.Segment
— (Integer
)For a parallel
Scan
request,Segment
identifies an individual segment to be scanned by an application worker.Segment IDs are zero-based, so the first segment is always 0. For example, if you want to use four application threads to scan a table or an index, then the first thread specifies a
Segment
value of 0, the second thread specifies 1, and so on.The value of
LastEvaluatedKey
returned from a parallelScan
request must be used asExclusiveStartKey
with the same segment ID in a subsequentScan
operation.The value for
Segment
must be greater than or equal to 0, and less than the value provided forTotalSegments
.If you provide
Segment
, you must also provideTotalSegments
.ProjectionExpression
— (String
)A string that identifies one or more attributes to retrieve from the specified table or index. These attributes can include scalars, sets, or elements of a JSON document. The attributes in the expression must be separated by commas.
If no attribute names are specified, then all attributes will be returned. If any of the requested attributes are not found, they will not appear in the result.
For more information, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
FilterExpression
— (String
)A string that contains conditions that DynamoDB applies after the
Scan
operation, but before the data is returned to you. Items that do not satisfy theFilterExpression
criteria are not returned.Note: AFilterExpression
is applied after the items have already been read; the process of filtering does not consume any additional read capacity units.For more information, see Filter Expressions in the Amazon DynamoDB Developer Guide.
ExpressionAttributeNames
— (map<String>
)One or more substitution tokens for attribute names in an expression. The following are some use cases for using
ExpressionAttributeNames
:-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for
ExpressionAttributeNames
:-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Note: Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.For more information on expression attribute names, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
-
ExpressionAttributeValues
— (map<map>
)One or more values that can be substituted in an expression.
Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the
ProductStatus
attribute was one of the following:Available | Backordered | Discontinued
You would first need to specify
ExpressionAttributeValues
as follows:{ ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
You could then use these values in an expression, such as this:
ProductStatus IN (:avail, :back, :disc)
For more information on expression attribute values, see Condition Expressions in the Amazon DynamoDB Developer Guide.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsistentRead
— (Boolean
)A Boolean value that determines the read consistency model during the scan:
-
If
ConsistentRead
isfalse
, then the data returned fromScan
might not contain the results from other recently completed write operations (PutItem
,UpdateItem
, orDeleteItem
). -
If
ConsistentRead
istrue
, then all of the write operations that completed before theScan
began are guaranteed to be contained in theScan
response.
The default setting for
ConsistentRead
isfalse
.The
ConsistentRead
parameter is not supported on global secondary indexes. If you scan a global secondary index withConsistentRead
set to true, you will receive aValidationException
.-
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs. Thedata
object has the following properties:Items
— (Array<map<map>>
)An array of item attributes that match the scan criteria. Each element in this array consists of an attribute name and the value for that attribute.
S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
Count
— (Integer
)The number of items in the response.
If you set
ScanFilter
in the request, thenCount
is the number of items returned after the filter was applied, andScannedCount
is the number of matching items before the filter was applied.If you did not use a filter in the request, then
Count
is the same asScannedCount
.ScannedCount
— (Integer
)The number of items evaluated, before any
ScanFilter
is applied. A highScannedCount
value with few, or no,Count
results indicates an inefficientScan
operation. For more information, see Count and ScannedCount in the Amazon DynamoDB Developer Guide.If you did not use a filter in the request, then
ScannedCount
is the same asCount
.LastEvaluatedKey
— (map<map>
)The primary key of the item where the operation stopped, inclusive of the previous result set. Use this value to start a new operation, excluding this value in the new request.
If
LastEvaluatedKey
is empty, then the "last page" of results has been processed and there is no more data to be retrieved.If
LastEvaluatedKey
is not empty, it does not necessarily mean that there is more data in the result set. The only way to know when you have reached the end of the result set is whenLastEvaluatedKey
is empty.S
— (String
)An attribute of type String. For example:
"S": "Hello"
N
— (String
)An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
B
— (Buffer, Typed Array, Blob, String
)An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
SS
— (Array<String>
)An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
NS
— (Array<String>
)An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
BS
— (Array<Buffer, Typed Array, Blob, String>
)An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
M
— (map<map>
)An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
L
— (Array<map>
)An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N": "3.14159"}]
NULL
— (Boolean
)An attribute of type Null. For example:
"NULL": true
BOOL
— (Boolean
)An attribute of type Boolean. For example:
"BOOL": true
ConsumedCapacity
— (map
)The capacity units consumed by the
Scan
operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation.ConsumedCapacity
is only returned if theReturnConsumedCapacity
parameter was specified. For more information, see Capacity unit consumption for read operations in the Amazon DynamoDB Developer Guide.TableName
— (String
)The name of the table that was affected by the operation. If you had specified the Amazon Resource Name (ARN) of a table in the input, you'll see the table ARN in the response.
CapacityUnits
— (Float
)The total number of capacity units consumed by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed by the operation.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed by the operation.
Table
— (map
)The amount of throughput consumed on the table affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
LocalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each local index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
GlobalSecondaryIndexes
— (map<map>
)The amount of throughput consumed on each global index affected by the operation.
ReadCapacityUnits
— (Float
)The total number of read capacity units consumed on a table or an index.
WriteCapacityUnits
— (Float
)The total number of write capacity units consumed on a table or an index.
CapacityUnits
— (Float
)The total number of capacity units consumed on a table or an index.
-
(AWS.Response)
—
Returns:
tagResource(params = {}, callback) ⇒ AWS.Request
Associate a set of tags with an Amazon DynamoDB resource. You can then activate these user-defined tags so that they appear on the Billing and Cost Management console for cost allocation tracking. You can call TagResource up to five times per second, per account.
For an overview on tagging DynamoDB resources, see Tagging for DynamoDB in the Amazon DynamoDB Developer Guide.
Service Reference:
Examples:
Calling the tagResource operation
var params = { ResourceArn: 'STRING_VALUE', /* required */ Tags: [ /* required */ { Key: 'STRING_VALUE', /* required */ Value: 'STRING_VALUE' /* required */ }, /* more items */ ] }; dynamodb.tagResource(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
-
params
(Object)
(defaults to: {})
—
ResourceArn
— (String
)Identifies the Amazon DynamoDB resource to which tags should be added. This value is an Amazon Resource Name (ARN).
Tags
— (Array<map>
)The tags to be assigned to the Amazon DynamoDB resource.
Key
— required — (String
)The key of the tag. Tag keys are case sensitive. Each DynamoDB table can only have up to one tag with the same key. If you try to add an existing tag (same key), the existing tag value will be updated to the new value.
Value
— required — (String
)The value of the tag. Tag values are case-sensitive and can be null.
Callback (callback):
-
function(err, data) { ... }
Called when a response from the service is returned. If a callback is not supplied, you must call AWS.Request.send() on the returned request object to initiate the request.
Context (this):
-
(AWS.Response)
—
the response object containing error, data properties, and the original request object.
Parameters:
-
err
(Error)
—
the error object returned from the request. Set to
null
if the request is successful. -
data
(Object)
—
the de-serialized data returned from the request. Set to
null
if a request error occurs.
-
(AWS.Response)
—
Returns:
transactGetItems(params = {}, callback) ⇒ AWS.Request
TransactGetItems
is a synchronous operation that atomically retrieves multiple items from one or more tables (but not from indexes) in a single account and Region. ATransactGetItems
call can contain up to 100TransactGetItem
objects, each of which contains aGet
structure that specifies an item to retrieve from a table in the account and Region. A call toTransactGetItems
cannot retrieve items from tables in more than one Amazon Web Services account or Region. The aggregate size of the items in the transaction cannot exceed 4 MB.DynamoDB rejects the entire
TransactGetItems
request if any of the following is true:-
A conflicting operation is in the process of updating an item to be read.
-
There is insufficient provisioned capacity for the transaction to be completed.
-
There is a user error, such as an invalid data format.
-
The aggregate size of the items in the transaction exceeded 4 MB.
Service Reference:
Examples:
Calling the transactGetItems operation
var params = { TransactItems: [ /* required */ { Get: { /* required */ Key: { /* required */ '<AttributeName>': { /* AttributeValue */ B: Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, BOOL: true || false, BS: [ Buffer.from('...') || 'STRING_VALUE' /* Strings will be Base-64 encoded on your behalf */, /* more items */ ], L: [ /* recursive AttributeValue */, /* more items */ ], M: { '<AttributeName>': /* recursive AttributeValue */, /* '<AttributeName>': ... */ }, N: 'STRING_VALUE', NS: [ 'STRING_VALUE', /* more items */ ], NULL: true || false, S: 'STRING_VALUE', SS: [ 'STRING_VALUE', /* more items */ ] }, /* '<AttributeName>': ... */ }, TableName: 'STRING_VALUE', /* required */ ExpressionAttributeNames: { '<ExpressionAttributeNameVariable>': 'STRING_VALUE', /* '<ExpressionAttributeNameVariable>': ... */ }, ProjectionExpression: 'STRING_VALUE' } }, /* more items */ ], ReturnConsumedCapacity: INDEXES | TOTAL | NONE }; dynamodb.transactGetItems(params, function(err, data) { if (err) console.log(err, err.stack); // an error occurred else console.log(data); // successful response });
Parameters:
- exportTableToPointInTime(params = {}, callback) ⇒ AWS.Request