aws-solutions-constructs.aws-kinesis-streams-lambda 1.51.0

CDK constructs for defining an interaction between an Amazon Kinesis Data Stream and an AWS Lambda function.

aws-kinesisstreams-lambda module

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All classes are under active development and subject to non-backward compatible changes or removal in any future version. These are not subject to the Semantic Versioning model. This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.

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Reference Documentation:	https://docs.aws.amazon.com/solutions/latest/constructs/

Language	Package
Python	aws_solutions_constructs.aws_kinesisstreams_lambda
Typescript	@aws-solutions-constructs/aws-kinesisstreams-lambda
Java	software.amazon.awsconstructs.services.kinesisstreamslambda

This AWS Solutions Construct deploys a Kinesis Stream and Lambda function with the appropriate resources/properties for interaction and security.

Here is a minimal deployable pattern definition:

const { KinesisStreamsToLambda } = require('@aws-solutions-constructs/aws-kinesisstreams-lambda');

new KinesisStreamsToLambda(stack, 'KinesisToLambdaPattern', {
    eventSourceProps: {
        startingPosition: lambda.StartingPosition.TRIM_HORIZON,
        batchSize: 1
    },
    lambdaFunctionProps: {
        runtime: lambda.Runtime.NODEJS_10_X,
        handler: 'index.handler',
        code: lambda.Code.asset(`${__dirname}/lambda`)
    }
});

Initializer

new KinesisStreamsToLambda(scope: Construct, id: string, props: KinesisStreamsToLambdaProps);

Parameters

• scope Construct
• id string
• props KinesisStreamsToLambdaProps

Pattern Construct Props

Name	Type	Description
existingLambdaObj?	lambda.Function	Existing instance of Lambda Function object, if this is set then the lambdaFunctionProps is ignored.
lambdaFunctionProps?	lambda.FunctionProps	User provided props to override the default props for the Lambda function.
kinesisStreamProps?	kinesis.StreamProps	Optional user-provided props to override the default props for the Kinesis stream.
eventSourceProps?	lambda.EventSourceMappingOptions	Optional user-provided props to override the default props for the Lambda event source mapping.

Pattern Properties

Name	Type	Description
kinesisStream	kinesis.Stream	Returns an instance of the Kinesis stream created by the pattern.
lambdaFunction	lambda.Function	Returns an instance of the Lambda function created by the pattern.
kinesisStreamRole	iam.Role	Returns an instance of the iam.Role created by the construct for Kinesis stream.

Default settings

Out of the box implementation of the Construct without any override will set the following defaults:

Amazon Kinesis Stream

• Configure least privilege access IAM role for Kinesis Stream
• Enable server-side encryption for Kinesis Stream using AWS Managed KMS Key

AWS Lambda Function

• Configure least privilege access IAM role for Lambda function
• Enable reusing connections with Keep-Alive for NodeJs Lambda function

Architecture

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