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 This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.

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

Language	Package
Python	`aws_solutions_constructs.aws_sqs_lambda`
Typescript	`@aws-solutions-constructs/aws-sqs-lambda`
Java	`software.amazon.awsconstructs.services.sqslambda`

This AWS Solutions Construct implements an Amazon SQS queue connected to an AWS Lambda function.

Here is a minimal deployable pattern definition:

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

new SqsToLambda(stack, 'SqsToLambdaPattern', {
    lambdaFunctionProps: {
        runtime: lambda.Runtime.NODEJS_10_X,
        handler: 'index.handler',
        code: lambda.Code.asset(`${__dirname}/lambda`)
    }
});

Initializer

new SqsToLambda(scope: Construct, id: string, props: SqsToLambdaProps);

Parameters

scope Construct
id string
props SqsToLambdaProps

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.
queueProps?	`sqs.QueueProps`	Optional user-provided props to override the default props for the SQS queue.
deadLetterQueueProps?	`sqs.QueueProps`	Optional user-provided props to override the default props for the dead letter SQS queue.
deployDeadLetterQueue?	`boolean`	Whether to create a secondary queue to be used as a dead letter queue. Defaults to true.
maxReceiveCount?	`number`	The number of times a message can be unsuccessfully dequeued before being moved to the dead letter queue. Defaults to 15.

Pattern Properties

Name	Type	Description
lambdaFunction	`lambda.Function`	Returns an instance of the Lambda function created by the pattern.
sqsQueue	`sqs.Queue`	Returns an instance of the SQS queue created by the pattern.
deadLetterQueue	`sqs.Queue`	Returns an instance of the dead-letter SQS queue created by the pattern.

Default settings

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

Amazon SQS Queue

Deploy SQS dead-letter queue for the source SQS Queue
Enable server-side encryption for source SQS Queue 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

Architecture Diagram