README.md

API Gateway Async → Lambda

Invoking the Lambda function asynchronously with AWS API Gateway, you need to use an Integration Type of Lambda Integration, make sure that the Use Lambda Proxy Integration option is not checked by setting the Lambda Integration proxy as false via CDK, and add a header mapping in the Integration Request (X-Amz-Invocation-Type: 'Event').

AWS CDK API / Developer Reference

• AWS Lambda
• Amazon API Gateway

AWS Documentation Developer Guide

• Asynchronous invocation
• Set up asynchronous invocation of the backend Lambda function
• Amazon API Gateway API request and response data mapping reference
• How can I invoke a Lambda function asynchronously from my Amazon API Gateway API?

Useful commands

The cdk.json file tells the CDK Toolkit how to execute your app.

• npm install install projects dependencies
• npm run build compile typescript to js
• npm run watch watch for changes and compile
• npm run test perform the jest unit tests
• cdk deploy deploy this stack to your default AWS account/region
• cdk diff compare deployed stack with current state
• cdk synth emits the synthesized CloudFormation template
• cdk bootstrap deployment of AWS CloudFormation template to a specific AWS environment (account and region)
• cdk destroy destroy this stack from your default AWS account/region

Deploy

Using make command

1. Install all the dependencies, bootstrap your project, and synthesized CloudFormation template.

   # Without passing "profile" parameter
   dev@dev:~:aws-cdk-samples/api-gateway/api-gateway-async-lambda$ make init
   
   # With "profile" parameter
   dev@dev:~:aws-cdk-samples/api-gateway/api-gateway-async-lambda$ make init profile=[profile_name]

2. Deploy the project.

   # Without passing "profile" parameter
   dev@dev:~:aws-cdk-samples/api-gateway/api-gateway-async-lambda$ make deploy
   
   # With "profile" parameter
   dev@dev:~:aws-cdk-samples/api-gateway/api-gateway-async-lambda$ make deploy profile=[profile_name]