cfn-modules: AWS Lambda event source: SQS queue

SQS queue event source for AWS Lambda function.

Install

Install Node.js and npm first!

npm i @cfn-modules/lambda-event-source-sqs-queue

Usage

WARNING: We recommend to set the ReservedConcurrentExecutions parameter in the lambda-function module when using this module. If you do not set the parameter and many messages arrive, the Lambda function scales up to the regional limit which impacts other Lambda functions in the same region in your AWS account. For most use cases a value of 10 should be fine. If the SQS queue length grows you might want to increase the number.

---
AWSTemplateFormatVersion: '2010-09-09'
Description: 'cfn-modules example'
Resources:
  EventSource:
    Type: 'AWS::CloudFormation::Stack'
    Properties:
      Parameters:
        LambdaModule: !GetAtt 'Function.Outputs.StackName' # required
        QueueModule: !GetAtt 'Queue.Outputs.StackName' # required
        BatchSize: 10 # optional
      TemplateURL: './node_modules/@cfn-modules/lambda-event-source-sqs-queue/module.yml'

Examples

• serverless-sqs-queue

Related modules

• sqs-queue
• lambda-function

Parameters

Name	Description	Default	Required?	Allowed values
LambdaModule	Stack name of lambda-function module		yes
QueueModule	Stack name of sqs-queue module		no
BatchSize	The largest number of messages that Lambda retrieves from your queue at once.	10	no	[1-10000]