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CDK Constructs for AWS DynamoDB Stream to AWS Lambda integration.

Project description

aws-dynamodb-stream-lambda module

---

Stability: Experimental

This is a developer preview (public beta) module.

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 This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.


API Reference: http://docs.awssolutionsbuilder.com/aws-solutions-konstruk/latest/api/aws-dynamodb-stream-lambda/
Language Package
Python Logo{: style="height:16px;width:16px"} Python aws_solutions_konstruk.aws_dynamodb_stream_lambda
Typescript Logo{: style="height:16px;width:16px"} Typescript @aws-solutions-konstruk/aws-dynamodb-stream-lambda

This AWS Solutions Konstruk implements a pattern Amazon DynamoDB table with stream to invoke the AWS Lambda function with the least privileged permissions.

Here is a minimal deployable pattern definition:

const { DynamoDBStreamToLambdaProps,  DynamoDBStreamToLambda} = require('@aws-solutions-konstruk/aws-dynamodb-stream-lambda');

const props: DynamoDBStreamToLambdaProps = {
    deployLambda: true,
    lambdaFunctionProps: {
        code: lambda.Code.asset(`${__dirname}/lambda`),
        runtime: lambda.Runtime.NODEJS_12_X,
        handler: 'index.handler'
    },
};

new DynamoDBStreamToLambda(stack, 'test-dynamodb-stream-lambda', props);

Initializer

new DynamoDBStreamToLambda(scope: Construct, id: string, props: DynamoDBStreamToLambdaProps);

Parameters

Pattern Construct Props

Name Type Description
deployLambda boolean Whether to create a new Lambda function or use an existing Lambda function
existingLambdaObj? lambda.Function Existing instance of Lambda Function object
lambdaFunctionProps? lambda.FunctionProps Optional user provided props to override the default props for Lambda function
dynamoTableProps? dynamodb.TableProps Optional user provided props to override the default props for DynamoDB Table
dynamoEventSourceProps? aws-lambda-event-sources.DynamoEventSourceProps Optional user provided props to override the default props for DynamoDB Event Source

Pattern Properties

Name Type Description
dynamoTable() dynamodb.Table Retruns an instance of dynamodb.Table created by the construct
lambdaFunction() lambda.Function Retruns an instance of lambda.Function created by the construct

Architecture

Architecture Diagram


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