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v2.273.0

Function L2 construct ​

A CloudFront Function.

Example ​

ts
const store = new cloudfront.KeyValueStore(this, 'KeyValueStore');
new cloudfront.Function(this, 'Function', {
  code: cloudfront.FunctionCode.fromInline('function handler(event) { return event.request }'),
  // Note that JS_2_0 must be used for Key Value Store support
  runtime: cloudfront.FunctionRuntime.JS_2_0,
  keyValueStore: store,
});
python
store = cloudfront.KeyValueStore(self, "KeyValueStore")
cloudfront.Function(self, "Function",
    code=cloudfront.FunctionCode.from_inline("function handler(event) { return event.request }"),
    # Note that JS_2_0 must be used for Key Value Store support
    runtime=cloudfront.FunctionRuntime.JS_2_0,
    key_value_store=store
)
java
KeyValueStore store = new KeyValueStore(this, "KeyValueStore");
Function.Builder.create(this, "Function")
        .code(FunctionCode.fromInline("function handler(event) { return event.request }"))
        // Note that JS_2_0 must be used for Key Value Store support
        .runtime(FunctionRuntime.JS_2_0)
        .keyValueStore(store)
        .build();
csharp
// Install: dotnet add package Amazon.CDK.Lib
var store = new KeyValueStore(this, "KeyValueStore");
new Function(this, "Function", new FunctionProps {
    Code = FunctionCode.FromInline("function handler(event) { return event.request }"),
    // Note that JS_2_0 must be used for Key Value Store support
    Runtime = FunctionRuntime.JS_2_0,
    KeyValueStore = store
});
go
// Install: go get github.com/aws/aws-cdk-go/awscdk/v2
store := cloudfront.NewKeyValueStore(this, jsii.String("KeyValueStore"))
cloudfront.NewFunction(this, jsii.String("Function"), &FunctionProps{
	Code: cloudfront.FunctionCode_FromInline(jsii.String("function handler(event) { return event.request }")),
	// Note that JS_2_0 must be used for Key Value Store support
	Runtime: cloudfront.FunctionRuntime_JS_2_0(),
	KeyValueStore: store,
})

Initializer ​

ts
new Function(scope: Construct, id: string, props: FunctionProps)
python
Function(scope: Construct, id: str, props: FunctionProps)
java
new Function(Construct scope, String id, FunctionProps props)
csharp
new Function(Construct scope, string id, FunctionProps props)
go
NewFunction(Scope Construct, Id *string, Props FunctionProps)

Construct Props ​

autoPublishbooleanauto_publishboolautoPublishBooleanAutoPublishboolAutoPublish*bool= true#
A flag that determines whether to automatically publish the function to the LIVE stage when it’s created.
The source code of the function.
commentstringcommentstrcommentStringCommentstringComment*string= same as `functionName`#
A comment to describe the function.
functionNamestringfunction_namestrfunctionNameStringFunctionNamestringFunctionName*string= generated from the `id`#
A name to identify the function.
keyValueStoreIKeyValueStoreRefkey_value_storeIKeyValueStoreRefkeyValueStoreIKeyValueStoreRefKeyValueStoreIKeyValueStoreRefKeyValueStoreIKeyValueStoreRef= no key value store is associated#
The Key Value Store to associate with this function.

In order to associate a Key Value Store, the runtime must be cloudfront-js-2.0 or newer.

runtimeFunctionRuntimeruntimeFunctionRuntimeruntimeFunctionRuntimeRuntimeFunctionRuntimeRuntimeFunctionRuntime= FunctionRuntime.JS_1_0 (unless `…#
The runtime environment for the function.
default

Default: FunctionRuntime.JS_1_0 (unless keyValueStore is specified, then FunctionRuntime.JS_2_0)

Properties ​

The environment this resource belongs to.
notes

For resources that are created and managed in a Stack (those created by creating new class instances like new Role(), new Bucket(), etc.), this is always the same as the environment of the stack they belong to.

For referenced resources (those obtained from referencing methods like Role.fromRoleArn(), Bucket.fromBucketName(), etc.), they might be different than the stack they were imported into.

functionArnstringfunction_arnstrfunctionArnStringFunctionArnstringFunctionArn*stringrequired#
the ARN of the CloudFront function.
functionNamestringfunction_namestrfunctionNameStringFunctionNamestringFunctionName*stringrequired#
the name of the CloudFront function.
functionRefFunctionReferencefunction_refFunctionReferencefunctionRefFunctionReferenceFunctionRefFunctionReferenceFunctionRefFunctionReferencerequired#
A reference to a Function resource.
functionRuntimestringfunction_runtimestrfunctionRuntimeStringFunctionRuntimestringFunctionRuntime*stringrequired#
the runtime of the CloudFront function.
functionStagestringfunction_stagestrfunctionStageStringFunctionStagestringFunctionStage*stringrequired#
the deployment stage of the CloudFront function.
nodeNodenodeNodenodeNodeNodeNodeNodeNoderequired#
The tree node.
PROPERTY_INJECTION_IDstringproperty_injection_idstrPROPERTY_INJECTION_IDStringPROPERTY_INJECTION_IDstringPROPERTY_INJECTION_ID*stringrequiredstatic#
Uniquely identifies this class.
stackStackstackStackstackStackStackStackStackStackrequired#
The stack in which this resource is defined.

Methods ​

applyCrossStackReferenceStrength(strength: ReferenceStrength): voiddef apply_cross_stack_reference_strength(self, strength: ReferenceStrength) -> Nonepublic void applyCrossStackReferenceStrength(ReferenceStrength strength)public void ApplyCrossStackReferenceStrength(ReferenceStrength strength)func ApplyCrossStackReferenceStrength(Strength ReferenceStrength)#
Override the cross-stack reference strength for this resource.
notes · 1 parameter

When set, any cross-stack reference to this resource will use the specified mechanism instead of the global default determined by the @aws-cdk/core:defaultCrossStackReferences context key. This is useful for selectively weakening specific references to avoid the "deadly embrace" problem without changing the app-wide default.

Parameters

  • strengthstrengthstrengthstrengthStrength — - The reference strength to use for this resource.
applyRemovalPolicy(policy: RemovalPolicy): voiddef apply_removal_policy(self, policy: RemovalPolicy) -> Nonepublic void applyRemovalPolicy(RemovalPolicy policy)public void ApplyRemovalPolicy(RemovalPolicy policy)func ApplyRemovalPolicy(Policy RemovalPolicy)#
Apply the given removal policy to this resource.
notes

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).

fromFunctionAttributes(scope: Construct, id: string, attrs: FunctionAttributes): IFunction@staticmethod def from_function_attributes(scope: Construct, id: str, attrs: FunctionAttributes) -> IFunctionpublic static IFunction fromFunctionAttributes(Construct scope, String id, FunctionAttributes attrs)public static IFunction FromFunctionAttributes(Construct scope, string id, FunctionAttributes attrs)func FromFunctionAttributes(Scope Construct, Id *string, Attrs FunctionAttributes) IFunctionstatic#
Imports a function by its name and ARN.
isConstruct(x: any): boolean@staticmethod def is_construct(x: Any) -> boolpublic static Boolean isConstruct(Object x)public static bool IsConstruct(object x)func IsConstruct(X interface{}) *boolstatic#
Checks if `x` is a construct.
notes · 1 parameter · returns

Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.

Parameters

  • xxxxX — Any object.

Returns: true if x is an object created from a class which extends Construct.

isOwnedResource(construct: IConstruct): boolean@staticmethod def is_owned_resource(construct: IConstruct) -> boolpublic static Boolean isOwnedResource(IConstruct construct)public static bool IsOwnedResource(IConstruct construct)func IsOwnedResource(Construct IConstruct) *boolstatic#
Returns true if the construct was created by CDK, and false otherwise.
isResource(construct: IConstruct): boolean@staticmethod def is_resource(construct: IConstruct) -> boolpublic static Boolean isResource(IConstruct construct)public static bool IsResource(IConstruct construct)func IsResource(Construct IConstruct) *boolstatic#
Check whether the given construct is a Resource.
toString(): stringdef to_string(self, ) -> strpublic String toString()public string ToString()func ToString() *string#
Returns a string representation of this construct.
with(...mixins: IMixin[]): IConstructdef with(self, mixins: IMixin) -> IConstructpublic IConstruct with(IMixin mixins)public IConstruct With(IMixin mixins)func With(Mixins IMixin) IConstruct#
Applies one or more mixins to this construct.

Mixins are applied in order. The list of constructs is captured at the start of the call, so constructs added by a mixin will not be visited. Use multiple with() calls if subsequent mixins should apply to added constructs.