class CfnApiCache (construct)
Language | Type name |
---|---|
.NET | Amazon.CDK.AWS.AppSync.CfnApiCache |
Java | software.amazon.awscdk.services.appsync.CfnApiCache |
Python | aws_cdk.aws_appsync.CfnApiCache |
TypeScript | @aws-cdk/aws-appsync » CfnApiCache |
Implements
IConstruct
, IConstruct
, IDependable
, IInspectable
A CloudFormation AWS::AppSync::ApiCache
.
The AWS::AppSync::ApiCache
resource represents the input of a CreateApiCache
operation.
Example
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as appsync from '@aws-cdk/aws-appsync';
const cfnApiCache = new appsync.CfnApiCache(this, 'MyCfnApiCache', {
apiCachingBehavior: 'apiCachingBehavior',
apiId: 'apiId',
ttl: 123,
type: 'type',
// the properties below are optional
atRestEncryptionEnabled: false,
transitEncryptionEnabled: false,
});
Initializer
new CfnApiCache(scope: Construct, id: string, props: CfnApiCacheProps)
Parameters
- scope
Construct
— - scope in which this resource is defined. - id
string
— - scoped id of the resource. - props
Cfn
— - resource properties.Api Cache Props
Create a new AWS::AppSync::ApiCache
.
Construct Props
Name | Type | Description |
---|---|---|
api | string | Caching behavior. |
api | string | The GraphQL API ID. |
ttl | number | TTL in seconds for cache entries. |
type | string | The cache instance type. Valid values are. |
at | boolean | IResolvable | At-rest encryption flag for cache. |
transit | boolean | IResolvable | Transit encryption flag when connecting to cache. |
apiCachingBehavior
Type:
string
Caching behavior.
- FULL_REQUEST_CACHING : All requests are fully cached.
- PER_RESOLVER_CACHING : Individual resolvers that you specify are cached.
apiId
Type:
string
The GraphQL API ID.
ttl
Type:
number
TTL in seconds for cache entries.
Valid values are 1–3,600 seconds.
type
Type:
string
The cache instance type. Valid values are.
SMALL
MEDIUM
LARGE
XLARGE
LARGE_2X
LARGE_4X
LARGE_8X
(not available in all regions)LARGE_12X
Historically, instance types were identified by an EC2-style value. As of July 2020, this is deprecated, and the generic identifiers above should be used.
The following legacy instance types are available, but their use is discouraged:
- T2_SMALL : A t2.small instance type.
- T2_MEDIUM : A t2.medium instance type.
- R4_LARGE : A r4.large instance type.
- R4_XLARGE : A r4.xlarge instance type.
- R4_2XLARGE : A r4.2xlarge instance type.
- R4_4XLARGE : A r4.4xlarge instance type.
- R4_8XLARGE : A r4.8xlarge instance type.
atRestEncryptionEnabled?
Type:
boolean |
IResolvable
(optional)
At-rest encryption flag for cache.
You cannot update this setting after creation.
transitEncryptionEnabled?
Type:
boolean |
IResolvable
(optional)
Transit encryption flag when connecting to cache.
You cannot update this setting after creation.
Properties
Name | Type | Description |
---|---|---|
api | string | Caching behavior. |
api | string | The GraphQL API ID. |
cfn | ICfn | Options for this resource, such as condition, update policy etc. |
cfn | { [string]: any } | |
cfn | string | AWS resource type. |
creation | string[] | |
logical | string | The logical ID for this CloudFormation stack element. |
node | Construct | The construct tree node associated with this construct. |
ref | string | Return a string that will be resolved to a CloudFormation { Ref } for this element. |
stack | Stack | The stack in which this element is defined. |
ttl | number | TTL in seconds for cache entries. |
type | string | The cache instance type. Valid values are. |
at | boolean | IResolvable | At-rest encryption flag for cache. |
transit | boolean | IResolvable | Transit encryption flag when connecting to cache. |
static CFN_RESOURCE_TYPE_NAME | string | The CloudFormation resource type name for this resource class. |
apiCachingBehavior
Type:
string
Caching behavior.
- FULL_REQUEST_CACHING : All requests are fully cached.
- PER_RESOLVER_CACHING : Individual resolvers that you specify are cached.
apiId
Type:
string
The GraphQL API ID.
cfnOptions
Type:
ICfn
Options for this resource, such as condition, update policy etc.
cfnProperties
Type:
{ [string]: any }
cfnResourceType
Type:
string
AWS resource type.
creationStack
Type:
string[]
logicalId
Type:
string
The logical ID for this CloudFormation stack element.
The logical ID of the element is calculated from the path of the resource node in the construct tree.
To override this value, use overrideLogicalId(newLogicalId)
.
node
Type:
Construct
The construct tree node associated with this construct.
ref
Type:
string
Return a string that will be resolved to a CloudFormation { Ref }
for this element.
If, by any chance, the intrinsic reference of a resource is not a string, you could
coerce it to an IResolvable through Lazy.any({ produce: resource.ref })
.
stack
Type:
Stack
The stack in which this element is defined.
CfnElements must be defined within a stack scope (directly or indirectly).
ttl
Type:
number
TTL in seconds for cache entries.
Valid values are 1–3,600 seconds.
type
Type:
string
The cache instance type. Valid values are.
SMALL
MEDIUM
LARGE
XLARGE
LARGE_2X
LARGE_4X
LARGE_8X
(not available in all regions)LARGE_12X
Historically, instance types were identified by an EC2-style value. As of July 2020, this is deprecated, and the generic identifiers above should be used.
The following legacy instance types are available, but their use is discouraged:
- T2_SMALL : A t2.small instance type.
- T2_MEDIUM : A t2.medium instance type.
- R4_LARGE : A r4.large instance type.
- R4_XLARGE : A r4.xlarge instance type.
- R4_2XLARGE : A r4.2xlarge instance type.
- R4_4XLARGE : A r4.4xlarge instance type.
- R4_8XLARGE : A r4.8xlarge instance type.
atRestEncryptionEnabled?
Type:
boolean |
IResolvable
(optional)
At-rest encryption flag for cache.
You cannot update this setting after creation.
transitEncryptionEnabled?
Type:
boolean |
IResolvable
(optional)
Transit encryption flag when connecting to cache.
You cannot update this setting after creation.
static CFN_RESOURCE_TYPE_NAME
Type:
string
The CloudFormation resource type name for this resource class.
Methods
Name | Description |
---|---|
add | Syntactic sugar for addOverride(path, undefined) . |
add | Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned. |
add | Add a value to the CloudFormation Resource Metadata. |
add | Adds an override to the synthesized CloudFormation resource. |
add | Adds an override that deletes the value of a property from the resource definition. |
add | Adds an override to a resource property. |
apply | Sets the deletion policy of the resource based on the removal policy specified. |
get | Returns a token for an runtime attribute of this resource. |
get | Retrieve a value value from the CloudFormation Resource Metadata. |
inspect(inspector) | Examines the CloudFormation resource and discloses attributes. |
override | Overrides the auto-generated logical ID with a specific ID. |
to | Returns a string representation of this construct. |
protected render |
DeletionOverride(path)
addpublic addDeletionOverride(path: string): void
Parameters
- path
string
— The path of the value to delete.
Syntactic sugar for addOverride(path, undefined)
.
DependsOn(target)
addpublic addDependsOn(target: CfnResource): void
Parameters
- target
Cfn
Resource
Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.
This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.
Metadata(key, value)
addpublic addMetadata(key: string, value: any): void
Parameters
- key
string
- value
any
Add a value to the CloudFormation Resource Metadata.
See also: [https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.)
Override(path, value)
addpublic addOverride(path: string, value: any): void
Parameters
- path
string
— - The path of the property, you can use dot notation to override values in complex types. - value
any
— - The value.
Adds an override to the synthesized CloudFormation resource.
To add a
property override, either use addPropertyOverride
or prefix path
with
"Properties." (i.e. Properties.TopicName
).
If the override is nested, separate each nested level using a dot (.) in the path parameter. If there is an array as part of the nesting, specify the index in the path.
To include a literal .
in the property name, prefix with a \
. In most
programming languages you will need to write this as "\\."
because the
\
itself will need to be escaped.
For example,
cfnResource.addOverride('Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes', ['myattribute']);
cfnResource.addOverride('Properties.GlobalSecondaryIndexes.1.ProjectionType', 'INCLUDE');
would add the overrides
"Properties": {
"GlobalSecondaryIndexes": [
{
"Projection": {
"NonKeyAttributes": [ "myattribute" ]
...
}
...
},
{
"ProjectionType": "INCLUDE"
...
},
]
...
}
The value
argument to addOverride
will not be processed or translated
in any way. Pass raw JSON values in here with the correct capitalization
for CloudFormation. If you pass CDK classes or structs, they will be
rendered with lowercased key names, and CloudFormation will reject the
template.
PropertyDeletionOverride(propertyPath)
addpublic addPropertyDeletionOverride(propertyPath: string): void
Parameters
- propertyPath
string
— The path to the property.
Adds an override that deletes the value of a property from the resource definition.
PropertyOverride(propertyPath, value)
addpublic addPropertyOverride(propertyPath: string, value: any): void
Parameters
- propertyPath
string
— The path of the property. - value
any
— The value.
Adds an override to a resource property.
Syntactic sugar for addOverride("Properties.<...>", value)
.
RemovalPolicy(policy?, options?)
applypublic applyRemovalPolicy(policy?: RemovalPolicy, options?: RemovalPolicyOptions): void
Parameters
- policy
Removal
Policy - options
Removal
Policy Options
Sets the deletion policy of the resource based on the removal policy specified.
The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you've removed it from the CDK application or because you've made a change that requires the resource to be replaced.
The resource can be deleted (RemovalPolicy.DESTROY
), or left in your AWS
account for data recovery and cleanup later (RemovalPolicy.RETAIN
).
Att(attributeName)
getpublic getAtt(attributeName: string): Reference
Parameters
- attributeName
string
— The name of the attribute.
Returns
Returns a token for an runtime attribute of this resource.
Ideally, use generated attribute accessors (e.g. resource.arn
), but this can be used for future compatibility
in case there is no generated attribute.
Metadata(key)
getpublic getMetadata(key: string): any
Parameters
- key
string
Returns
any
Retrieve a value value from the CloudFormation Resource Metadata.
See also: [https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.)
inspect(inspector)
public inspect(inspector: TreeInspector): void
Parameters
- inspector
Tree
— - tree inspector to collect and process attributes.Inspector
Examines the CloudFormation resource and discloses attributes.
LogicalId(newLogicalId)
overridepublic overrideLogicalId(newLogicalId: string): void
Parameters
- newLogicalId
string
— The new logical ID to use for this stack element.
Overrides the auto-generated logical ID with a specific ID.
String()
topublic toString(): string
Returns
string
Returns a string representation of this construct.
Properties(props)
protected renderprotected renderProperties(props: { [string]: any }): { [string]: any }
Parameters
- props
{ [string]: any }
Returns
{ [string]: any }