Class: AWS.CloudWatchEvents

Inherits:
AWS.Service show all
Identifier:
cloudwatchevents
API Version:
2015-10-07
Defined in:
(unknown)

Overview

Constructs a service interface object. Each API operation is exposed as a function on service.

Sending a Request Using CloudWatchEvents

var cloudwatchevents = new AWS.CloudWatchEvents();
cloudwatchevents.listRuleNamesByTarget(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 CloudWatchEvents object uses this specific API, you can construct the object by passing the apiVersion option to the constructor:

var cloudwatchevents = new AWS.CloudWatchEvents({apiVersion: '2015-10-07'});

You can also set the API version globally in AWS.config.apiVersions using the cloudwatchevents service identifier:

AWS.config.apiVersions = {
  cloudwatchevents: '2015-10-07',
  // other service API versions
};

var cloudwatchevents = new AWS.CloudWatchEvents();

Version:

  • 2015-10-07

Constructor Summary collapse

Property Summary collapse

Properties inherited from AWS.Service

apiVersions

Method Summary collapse

Methods inherited from AWS.Service

makeRequest, makeUnauthenticatedRequest, waitFor, setupRequestListeners, defineService

Constructor Details

new AWS.CloudWatchEvents(options = {}) ⇒ Object

Constructs a service object. This object has one method for each API operation.

Examples:

Constructing a CloudWatchEvents object

var cloudwatchevents = new AWS.CloudWatchEvents({apiVersion: '2015-10-07'});

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)

    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'.

  • 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.CloudWatchEvents.region for more information.

  • maxRetries (Integer)

    the maximum amount of retries to attempt with a request. See AWS.CloudWatchEvents.maxRetries for more information.

  • maxRedirects (Integer)

    the maximum amount of redirects to follow with a request. See AWS.CloudWatchEvents.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.
  • 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 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 returns the amount of time to delay in milliseconds. The base option will be ignored if this option is supplied.
  • 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.

Property Details

endpointAWS.Endpoint (readwrite)

Returns an Endpoint object representing the endpoint URL for service requests.

Returns:

  • (AWS.Endpoint)

    an Endpoint object representing the endpoint URL for service requests.

Method Details

deleteRule(params = {}, callback) ⇒ AWS.Request

Deletes the specified rule.

You must remove all targets from a rule using RemoveTargets before you can delete the rule.

When you delete a rule, incoming events might continue to match to the deleted rule. Please allow a short period of time for changes to take effect.

Service Reference:

Examples:

Calling the deleteRule operation

var params = {
  Name: 'STRING_VALUE' /* required */
};
cloudwatchevents.deleteRule(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: {})
    • Name — (String)

      The name of the rule.

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.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

describeEventBus(params = {}, callback) ⇒ AWS.Request

Displays the external AWS accounts that are permitted to write events to your account using your account's event bus, and the associated policy. To enable your account to receive events from other accounts, use PutPermission.

Service Reference:

Examples:

Calling the describeEventBus operation

var params = {
};
cloudwatchevents.describeEventBus(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. The data object has the following properties:

      • Name — (String)

        The name of the event bus. Currently, this is always default.

      • Arn — (String)

        The Amazon Resource Name (ARN) of the account permitted to write events to the current account.

      • Policy — (String)

        The policy that enables the external account to send events to your account.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

describeRule(params = {}, callback) ⇒ AWS.Request

Describes the specified rule.

Service Reference:

Examples:

Calling the describeRule operation

var params = {
  Name: 'STRING_VALUE' /* required */
};
cloudwatchevents.describeRule(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: {})
    • Name — (String)

      The name of the rule.

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. The data object has the following properties:

      • Name — (String)

        The name of the rule.

      • Arn — (String)

        The Amazon Resource Name (ARN) of the rule.

      • EventPattern — (String)

        The event pattern. For more information, see Events and Event Patterns in the Amazon CloudWatch Events User Guide.

      • ScheduleExpression — (String)

        The scheduling expression. For example, "cron(0 20 * * ? *)", "rate(5 minutes)".

      • State — (String)

        Specifies whether the rule is enabled or disabled.

        Possible values include:
        • "ENABLED"
        • "DISABLED"
      • Description — (String)

        The description of the rule.

      • RoleArn — (String)

        The Amazon Resource Name (ARN) of the IAM role associated with the rule.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

disableRule(params = {}, callback) ⇒ AWS.Request

Disables the specified rule. A disabled rule won't match any events, and won't self-trigger if it has a schedule expression.

When you disable a rule, incoming events might continue to match to the disabled rule. Please allow a short period of time for changes to take effect.

Service Reference:

Examples:

Calling the disableRule operation

var params = {
  Name: 'STRING_VALUE' /* required */
};
cloudwatchevents.disableRule(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: {})
    • Name — (String)

      The name of the rule.

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.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

enableRule(params = {}, callback) ⇒ AWS.Request

Enables the specified rule. If the rule does not exist, the operation fails.

When you enable a rule, incoming events might not immediately start matching to a newly enabled rule. Please allow a short period of time for changes to take effect.

Service Reference:

Examples:

Calling the enableRule operation

var params = {
  Name: 'STRING_VALUE' /* required */
};
cloudwatchevents.enableRule(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: {})
    • Name — (String)

      The name of the rule.

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.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

listRuleNamesByTarget(params = {}, callback) ⇒ AWS.Request

Lists the rules for the specified target. You can see which of the rules in Amazon CloudWatch Events can invoke a specific target in your account.

Service Reference:

Examples:

Calling the listRuleNamesByTarget operation

var params = {
  TargetArn: 'STRING_VALUE', /* required */
  Limit: 0,
  NextToken: 'STRING_VALUE'
};
cloudwatchevents.listRuleNamesByTarget(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: {})
    • TargetArn — (String)

      The Amazon Resource Name (ARN) of the target resource.

    • NextToken — (String)

      The token returned by a previous call to retrieve the next set of results.

    • Limit — (Integer)

      The maximum number of results to return.

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. The data object has the following properties:

      • RuleNames — (Array<String>)

        The names of the rules that can invoke the given target.

      • NextToken — (String)

        Indicates whether there are additional results to retrieve. If there are no more results, the value is null.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

listRules(params = {}, callback) ⇒ AWS.Request

Lists your Amazon CloudWatch Events rules. You can either list all the rules or you can provide a prefix to match to the rule names.

Service Reference:

Examples:

Calling the listRules operation

var params = {
  Limit: 0,
  NamePrefix: 'STRING_VALUE',
  NextToken: 'STRING_VALUE'
};
cloudwatchevents.listRules(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: {})
    • NamePrefix — (String)

      The prefix matching the rule name.

    • NextToken — (String)

      The token returned by a previous call to retrieve the next set of results.

    • Limit — (Integer)

      The maximum number of results to return.

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. The data object has the following properties:

      • Rules — (Array<map>)

        The rules that match the specified criteria.

        • Name — (String)

          The name of the rule.

        • Arn — (String)

          The Amazon Resource Name (ARN) of the rule.

        • EventPattern — (String)

          The event pattern of the rule. For more information, see Events and Event Patterns in the Amazon CloudWatch Events User Guide.

        • State — (String)

          The state of the rule.

          Possible values include:
          • "ENABLED"
          • "DISABLED"
        • Description — (String)

          The description of the rule.

        • ScheduleExpression — (String)

          The scheduling expression. For example, "cron(0 20 * * ? *)", "rate(5 minutes)".

        • RoleArn — (String)

          The Amazon Resource Name (ARN) of the role that is used for target invocation.

      • NextToken — (String)

        Indicates whether there are additional results to retrieve. If there are no more results, the value is null.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

listTargetsByRule(params = {}, callback) ⇒ AWS.Request

Lists the targets assigned to the specified rule.

Service Reference:

Examples:

Calling the listTargetsByRule operation

var params = {
  Rule: 'STRING_VALUE', /* required */
  Limit: 0,
  NextToken: 'STRING_VALUE'
};
cloudwatchevents.listTargetsByRule(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: {})
    • Rule — (String)

      The name of the rule.

    • NextToken — (String)

      The token returned by a previous call to retrieve the next set of results.

    • Limit — (Integer)

      The maximum number of results to return.

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. The data object has the following properties:

      • Targets — (Array<map>)

        The targets assigned to the rule.

        • Idrequired — (String)

          The ID of the target.

        • Arnrequired — (String)

          The Amazon Resource Name (ARN) of the target.

        • RoleArn — (String)

          The Amazon Resource Name (ARN) of the IAM role to be used for this target when the rule is triggered. If one rule triggers multiple targets, you can use a different IAM role for each target.

        • Input — (String)

          Valid JSON text passed to the target. In this case, nothing from the event itself is passed to the target. You must use JSON dot notation, not bracket notation. For more information, see The JavaScript Object Notation (JSON) Data Interchange Format.

        • InputPath — (String)

          The value of the JSONPath that is used for extracting part of the matched event when passing it to the target. You must use JSON dot notation, not bracket notation. For more information about JSON paths, see JSONPath.

        • InputTransformer — (map)

          Settings to enable you to provide custom input to a target based on certain event data. You can extract one or more key-value pairs from the event and then use that data to send customized input to the target.

          • InputPathsMap — (map<String>)

            Map of JSON paths to be extracted from the event. These are key-value pairs, where each value is a JSON path. You must use JSON dot notation, not bracket notation.

          • InputTemplaterequired — (String)

            Input template where you can use the values of the keys from InputPathsMap to customize the data sent to the target.

        • KinesisParameters — (map)

          The custom parameter you can use to control shard assignment, when the target is an Amazon Kinesis stream. If you do not include this parameter, the default is to use the eventId as the partition key.

          • PartitionKeyPathrequired — (String)

            The JSON path to be extracted from the event and used as the partition key. For more information, see Amazon Kinesis Streams Key Concepts in the Amazon Kinesis Streams Developer Guide.

        • RunCommandParameters — (map)

          Parameters used when you are using the rule to invoke Amazon EC2 Run Command.

          • RunCommandTargetsrequired — (Array<map>)

            Currently, we support including only one RunCommandTarget block, which specifies either an array of InstanceIds or a tag.

            • Keyrequired — (String)

              Can be either tag: tag-key or InstanceIds.

            • Valuesrequired — (Array<String>)

              If Key is tag: tag-key, Values is a list of tag values. If Key is InstanceIds, Values is a list of Amazon EC2 instance IDs.

        • EcsParameters — (map)

          Contains the Amazon ECS task definition and task count to be used, if the event target is an Amazon ECS task. For more information about Amazon ECS tasks, see Task Definitions in the Amazon EC2 Container Service Developer Guide.

          • TaskDefinitionArnrequired — (String)

            The ARN of the task definition to use if the event target is an Amazon ECS cluster.

          • TaskCount — (Integer)

            The number of tasks to create based on the TaskDefinition. The default is one.

      • NextToken — (String)

        Indicates whether there are additional results to retrieve. If there are no more results, the value is null.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

putEvents(params = {}, callback) ⇒ AWS.Request

Sends custom events to Amazon CloudWatch Events so that they can be matched to rules.

Service Reference:

Examples:

Calling the putEvents operation

var params = {
  Entries: [ /* required */
    {
      Detail: 'STRING_VALUE',
      DetailType: 'STRING_VALUE',
      Resources: [
        'STRING_VALUE',
        /* more items */
      ],
      Source: 'STRING_VALUE',
      Time: new Date || 'Wed Dec 31 1969 16:00:00 GMT-0800 (PST)' || 123456789
    },
    /* more items */
  ]
};
cloudwatchevents.putEvents(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: {})
    • Entries — (Array<map>)

      The entry that defines an event in your system. You can specify several parameters for the entry such as the source and type of the event, resources associated with the event, and so on.

      • Time — (Date)

        The timestamp of the event, per RFC3339. If no timestamp is provided, the timestamp of the PutEvents call is used.

      • Source — (String)

        The source of the event.

      • Resources — (Array<String>)

        AWS resources, identified by Amazon Resource Name (ARN), which the event primarily concerns. Any number, including zero, may be present.

      • DetailType — (String)

        Free-form string used to decide what fields to expect in the event detail.

      • Detail — (String)

        In the JSON sense, an object containing fields, which may also contain nested subobjects. No constraints are imposed on its contents.

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. The data object has the following properties:

      • FailedEntryCount — (Integer)

        The number of failed entries.

      • Entries — (Array<map>)

        The successfully and unsuccessfully ingested events results. If the ingestion was successful, the entry has the event ID in it. Otherwise, you can use the error code and error message to identify the problem with the entry.

        • EventId — (String)

          The ID of the event.

        • ErrorCode — (String)

          The error code that indicates why the event submission failed.

        • ErrorMessage — (String)

          The error message that explains why the event submission failed.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

putPermission(params = {}, callback) ⇒ AWS.Request

Running PutPermission permits the specified AWS account to put events to your account's default event bus. CloudWatch Events rules in your account are triggered by these events arriving to your default event bus.

For another account to send events to your account, that external account must have a CloudWatch Events rule with your account's default event bus as a target.

To enable multiple AWS accounts to put events to your default event bus, run PutPermission once for each of these accounts.

The permission policy on the default event bus cannot exceed 10KB in size.

Service Reference:

Examples:

Calling the putPermission operation

var params = {
  Action: 'STRING_VALUE', /* required */
  Principal: 'STRING_VALUE', /* required */
  StatementId: 'STRING_VALUE' /* required */
};
cloudwatchevents.putPermission(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: {})
    • Action — (String)

      The action that you are enabling the other account to perform. Currently, this must be events:PutEvents.

    • Principal — (String)

      The 12-digit AWS account ID that you are permitting to put events to your default event bus. Specify "" to permit any account to put events to your default event bus.

      If you specify "", avoid creating rules that may match undesirable events. To create more secure rules, make sure that the event pattern for each rule contains an account field with a specific account ID from which to receive events. Rules with an account field do not match any events sent from other accounts.

    • StatementId — (String)

      An identifier string for the external account that you are granting permissions to. If you later want to revoke the permission for this external account, specify this StatementId when you run RemovePermission.

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.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

putRule(params = {}, callback) ⇒ AWS.Request

Creates or updates the specified rule. Rules are enabled by default, or based on value of the state. You can disable a rule using DisableRule.

When you create or update a rule, incoming events might not immediately start matching to new or updated rules. Please allow a short period of time for changes to take effect.

A rule must contain at least an EventPattern or ScheduleExpression. Rules with EventPatterns are triggered when a matching event is observed. Rules with ScheduleExpressions self-trigger based on the given schedule. A rule can have both an EventPattern and a ScheduleExpression, in which case the rule triggers on matching events as well as on a schedule.

Most services in AWS treat : or / as the same character in Amazon Resource Names (ARNs). However, CloudWatch Events uses an exact match in event patterns and rules. Be sure to use the correct ARN characters when creating event patterns so that they match the ARN syntax in the event you want to match.

Service Reference:

Examples:

Calling the putRule operation

var params = {
  Name: 'STRING_VALUE', /* required */
  Description: 'STRING_VALUE',
  EventPattern: 'STRING_VALUE',
  RoleArn: 'STRING_VALUE',
  ScheduleExpression: 'STRING_VALUE',
  State: ENABLED | DISABLED
};
cloudwatchevents.putRule(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: {})
    • Name — (String)

      The name of the rule that you are creating or updating.

    • ScheduleExpression — (String)

      The scheduling expression. For example, "cron(0 20 * * ? *)" or "rate(5 minutes)".

    • EventPattern — (String)

      The event pattern. For more information, see Events and Event Patterns in the Amazon CloudWatch Events User Guide.

    • State — (String)

      Indicates whether the rule is enabled or disabled.

      Possible values include:
      • "ENABLED"
      • "DISABLED"
    • Description — (String)

      A description of the rule.

    • RoleArn — (String)

      The Amazon Resource Name (ARN) of the IAM role associated with the rule.

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. The data object has the following properties:

      • RuleArn — (String)

        The Amazon Resource Name (ARN) of the rule.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

putTargets(params = {}, callback) ⇒ AWS.Request

Adds the specified targets to the specified rule, or updates the targets if they are already associated with the rule.

Targets are the resources that are invoked when a rule is triggered.

You can configure the following as targets for CloudWatch Events:

  • EC2 instances

  • AWS Lambda functions

  • Streams in Amazon Kinesis Streams

  • Delivery streams in Amazon Kinesis Firehose

  • Amazon ECS tasks

  • AWS Step Functions state machines

  • Pipelines in Amazon Code Pipeline

  • Amazon Inspector assessment templates

  • Amazon SNS topics

  • Amazon SQS queues

  • The default event bus of another AWS account

Note that creating rules with built-in targets is supported only in the AWS Management Console.

For some target types, PutTargets provides target-specific parameters. If the target is an Amazon Kinesis stream, you can optionally specify which shard the event goes to by using the KinesisParameters argument. To invoke a command on multiple EC2 instances with one rule, you can use the RunCommandParameters field.

To be able to make API calls against the resources that you own, Amazon CloudWatch Events needs the appropriate permissions. For AWS Lambda and Amazon SNS resources, CloudWatch Events relies on resource-based policies. For EC2 instances, Amazon Kinesis streams, and AWS Step Functions state machines, CloudWatch Events relies on IAM roles that you specify in the RoleARN argument in PutTargets. For more information, see Authentication and Access Control in the Amazon CloudWatch Events User Guide.

If another AWS account is in the same region and has granted you permission (using PutPermission), you can send events to that account by setting that account's event bus as a target of the rules in your account. To send the matched events to the other account, specify that account's event bus as the Arn when you run PutTargets. If your account sends events to another account, your account is charged for each sent event. Each event sent to antoher account is charged as a custom event. The account receiving the event is not charged. For more information on pricing, see Amazon CloudWatch Pricing.

For more information about enabling cross-account events, see PutPermission.

Input, InputPath and InputTransformer are mutually exclusive and optional parameters of a target. When a rule is triggered due to a matched event:

  • If none of the following arguments are specified for a target, then the entire event is passed to the target in JSON form (unless the target is Amazon EC2 Run Command or Amazon ECS task, in which case nothing from the event is passed to the target).

  • If Input is specified in the form of valid JSON, then the matched event is overridden with this constant.

  • If InputPath is specified in the form of JSONPath (for example, $.detail), then only the part of the event specified in the path is passed to the target (for example, only the detail part of the event is passed).

  • If InputTransformer is specified, then one or more specified JSONPaths are extracted from the event and used as values in a template that you specify as the input to the target.

When you specify Input, InputPath, or InputTransformer, you must use JSON dot notation, not bracket notation.

When you add targets to a rule and the associated rule triggers soon after, new or updated targets might not be immediately invoked. Please allow a short period of time for changes to take effect.

This action can partially fail if too many requests are made at the same time. If that happens, FailedEntryCount is non-zero in the response and each entry in FailedEntries provides the ID of the failed target and the error code.

Service Reference:

Examples:

Calling the putTargets operation

var params = {
  Rule: 'STRING_VALUE', /* required */
  Targets: [ /* required */
    {
      Arn: 'STRING_VALUE', /* required */
      Id: 'STRING_VALUE', /* required */
      EcsParameters: {
        TaskDefinitionArn: 'STRING_VALUE', /* required */
        TaskCount: 0
      },
      Input: 'STRING_VALUE',
      InputPath: 'STRING_VALUE',
      InputTransformer: {
        InputTemplate: 'STRING_VALUE', /* required */
        InputPathsMap: {
          '<InputTransformerPathKey>': 'STRING_VALUE',
          /* '<InputTransformerPathKey>': ... */
        }
      },
      KinesisParameters: {
        PartitionKeyPath: 'STRING_VALUE' /* required */
      },
      RoleArn: 'STRING_VALUE',
      RunCommandParameters: {
        RunCommandTargets: [ /* required */
          {
            Key: 'STRING_VALUE', /* required */
            Values: [ /* required */
              'STRING_VALUE',
              /* more items */
            ]
          },
          /* more items */
        ]
      }
    },
    /* more items */
  ]
};
cloudwatchevents.putTargets(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: {})
    • Rule — (String)

      The name of the rule.

    • Targets — (Array<map>)

      The targets to update or add to the rule.

      • Idrequired — (String)

        The ID of the target.

      • Arnrequired — (String)

        The Amazon Resource Name (ARN) of the target.

      • RoleArn — (String)

        The Amazon Resource Name (ARN) of the IAM role to be used for this target when the rule is triggered. If one rule triggers multiple targets, you can use a different IAM role for each target.

      • Input — (String)

        Valid JSON text passed to the target. In this case, nothing from the event itself is passed to the target. You must use JSON dot notation, not bracket notation. For more information, see The JavaScript Object Notation (JSON) Data Interchange Format.

      • InputPath — (String)

        The value of the JSONPath that is used for extracting part of the matched event when passing it to the target. You must use JSON dot notation, not bracket notation. For more information about JSON paths, see JSONPath.

      • InputTransformer — (map)

        Settings to enable you to provide custom input to a target based on certain event data. You can extract one or more key-value pairs from the event and then use that data to send customized input to the target.

        • InputPathsMap — (map<String>)

          Map of JSON paths to be extracted from the event. These are key-value pairs, where each value is a JSON path. You must use JSON dot notation, not bracket notation.

        • InputTemplaterequired — (String)

          Input template where you can use the values of the keys from InputPathsMap to customize the data sent to the target.

      • KinesisParameters — (map)

        The custom parameter you can use to control shard assignment, when the target is an Amazon Kinesis stream. If you do not include this parameter, the default is to use the eventId as the partition key.

        • PartitionKeyPathrequired — (String)

          The JSON path to be extracted from the event and used as the partition key. For more information, see Amazon Kinesis Streams Key Concepts in the Amazon Kinesis Streams Developer Guide.

      • RunCommandParameters — (map)

        Parameters used when you are using the rule to invoke Amazon EC2 Run Command.

        • RunCommandTargetsrequired — (Array<map>)

          Currently, we support including only one RunCommandTarget block, which specifies either an array of InstanceIds or a tag.

          • Keyrequired — (String)

            Can be either tag: tag-key or InstanceIds.

          • Valuesrequired — (Array<String>)

            If Key is tag: tag-key, Values is a list of tag values. If Key is InstanceIds, Values is a list of Amazon EC2 instance IDs.

      • EcsParameters — (map)

        Contains the Amazon ECS task definition and task count to be used, if the event target is an Amazon ECS task. For more information about Amazon ECS tasks, see Task Definitions in the Amazon EC2 Container Service Developer Guide.

        • TaskDefinitionArnrequired — (String)

          The ARN of the task definition to use if the event target is an Amazon ECS cluster.

        • TaskCount — (Integer)

          The number of tasks to create based on the TaskDefinition. The default is one.

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. The data object has the following properties:

      • FailedEntryCount — (Integer)

        The number of failed entries.

      • FailedEntries — (Array<map>)

        The failed target entries.

        • TargetId — (String)

          The ID of the target.

        • ErrorCode — (String)

          The error code that indicates why the target addition failed. If the value is ConcurrentModificationException, too many requests were made at the same time.

        • ErrorMessage — (String)

          The error message that explains why the target addition failed.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

removePermission(params = {}, callback) ⇒ AWS.Request

Revokes the permission of another AWS account to be able to put events to your default event bus. Specify the account to revoke by the StatementId value that you associated with the account when you granted it permission with PutPermission. You can find the StatementId by using DescribeEventBus.

Service Reference:

Examples:

Calling the removePermission operation

var params = {
  StatementId: 'STRING_VALUE' /* required */
};
cloudwatchevents.removePermission(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: {})
    • StatementId — (String)

      The statement ID corresponding to the account that is no longer allowed to put events to the default event bus.

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.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

removeTargets(params = {}, callback) ⇒ AWS.Request

Removes the specified targets from the specified rule. When the rule is triggered, those targets are no longer be invoked.

When you remove a target, when the associated rule triggers, removed targets might continue to be invoked. Please allow a short period of time for changes to take effect.

This action can partially fail if too many requests are made at the same time. If that happens, FailedEntryCount is non-zero in the response and each entry in FailedEntries provides the ID of the failed target and the error code.

Service Reference:

Examples:

Calling the removeTargets operation

var params = {
  Ids: [ /* required */
    'STRING_VALUE',
    /* more items */
  ],
  Rule: 'STRING_VALUE' /* required */
};
cloudwatchevents.removeTargets(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: {})
    • Rule — (String)

      The name of the rule.

    • Ids — (Array<String>)

      The IDs of the targets to remove from the rule.

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. The data object has the following properties:

      • FailedEntryCount — (Integer)

        The number of failed entries.

      • FailedEntries — (Array<map>)

        The failed target entries.

        • TargetId — (String)

          The ID of the target.

        • ErrorCode — (String)

          The error code that indicates why the target removal failed. If the value is ConcurrentModificationException, too many requests were made at the same time.

        • ErrorMessage — (String)

          The error message that explains why the target removal failed.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.

testEventPattern(params = {}, callback) ⇒ AWS.Request

Tests whether the specified event pattern matches the provided event.

Most services in AWS treat : or / as the same character in Amazon Resource Names (ARNs). However, CloudWatch Events uses an exact match in event patterns and rules. Be sure to use the correct ARN characters when creating event patterns so that they match the ARN syntax in the event you want to match.

Service Reference:

Examples:

Calling the testEventPattern operation

var params = {
  Event: 'STRING_VALUE', /* required */
  EventPattern: 'STRING_VALUE' /* required */
};
cloudwatchevents.testEventPattern(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: {})
    • EventPattern — (String)

      The event pattern. For more information, see Events and Event Patterns in the Amazon CloudWatch Events User Guide.

    • Event — (String)

      The event, in JSON format, to test against the event pattern.

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. The data object has the following properties:

      • Result — (Boolean)

        Indicates whether the event matches the event pattern.

Returns:

  • (AWS.Request)

    a handle to the operation request for subsequent event callback registration.