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CDK constructs for defining an interaction between an Amazon SQS queue and an AWS Lambda function.




aws-sqs-lambda module

Stability: Stable

| Reference Documentation:|| |:-------------|:-------------|

| Language | Package | |:-------------|-----------------| |Python Logo Python|aws_solutions_constructs.aws_sqs_lambda| |Typescript Logo Typescript|@aws-solutions-constructs/aws-sqs-lambda| |Java Logo Java||

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

Here is a minimal deployable pattern definition:


import { Construct } from 'constructs';
import { Stack, StackProps } from 'aws-cdk-lib';
import { SqsToLambda, SqsToLambdaProps } from "@aws-solutions-constructs/aws-sqs-lambda";
import * as lambda from 'aws-cdk-lib/aws-lambda';

new SqsToLambda(this, 'SqsToLambdaPattern', {
  lambdaFunctionProps: {
    runtime: lambda.Runtime.NODEJS_14_X,
    handler: 'index.handler',
    code: lambda.Code.fromAsset(`lambda`)


from aws_solutions_constructs.aws_sqs_lambda import SqsToLambda
from aws_cdk import (
    aws_lambda as _lambda,
from constructs import Construct

SqsToLambda(self, 'SqsToLambdaPattern',


import software.constructs.Construct;


new SqsToLambda(this, "SnsToSqsPattern", new SqsToLambdaProps.Builder()
        .lambdaFunctionProps(new FunctionProps.Builder()

Pattern Construct Props

| Name | Type | Description | |:-------------|:----------------|-----------------| |existingLambdaObj?|lambda.Function|Existing instance of Lambda Function object, providing both this and lambdaFunctionProps will cause an error.| |lambdaFunctionProps?|lambda.FunctionProps|User provided props to override the default props for the Lambda function.| |existingQueueObj?|sqs.Queue|An optional, existing SQS queue to be used instead of the default queue. Providing both this and queueProps will cause an error.| |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.| |sqsEventSourceProps?| SqsEventSourceProps|Optional user provided properties for the queue event source.|

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
  • Enforce encryption of data in transit

AWS Lambda Function

  • Configure limited privilege access IAM role for Lambda function
  • Enable reusing connections with Keep-Alive for NodeJs Lambda function
  • Enable X-Ray Tracing
  • Set Environment Variables
    • AWS_NODEJS_CONNECTION_REUSE_ENABLED (for Node 10.x and higher functions)


Architecture Diagram

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