CDK constructs for defining an interaction between an Amazon SQS queue and an AWS Lambda function.
Project description
aws-sqs-lambda module
---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 in Typescript:
import { SqsToLambda, SqsToLambdaProps } from "@aws-solutions-constructs/aws-sqs-lambda";
new SqsToLambda(this, 'SqsToLambdaPattern', {
lambdaFunctionProps: {
runtime: lambda.Runtime.NODEJS_14_X,
handler: 'index.handler',
code: lambda.Code.fromAsset(`${__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, 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
© Copyright 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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