Setup API Gateway WebSocket API with CDK

Setup API Gateway WebSocket API with CDK

Setup API Gateway WebSocket API with CDK - Setting up API Gateway with set up Websocket support. I still need to add an additional route to my WebSocket APIs that will handle adding todos. This is very easy with CDK.

This is the first part in a series of posts in which I am going to describe the steps to build a TODO list that allows real-time cooperation. This can be useful if you want to share some tasks with friends and observe the progress in real time.

In this post I’m going to describe the backend part which will consist of:

  • setting up API Gateway with WebSocket support
  • managing connected clients with Lambda and DynamoDB
  • receiving a message and broadcasting it to all connected clients

The infrastructure will be codified with CDK. Let’s get started!


Setting up API Gateway is pretty straightforward. Using the  WebSocketApi construct we just need to specify the lambda handlers responsible for handling clients connecting and disconnecting.

const webSocketApi = new WebSocketApi(this, 'TodosWebsocketApi', {
  connectRouteOptions: { integration: new LambdaWebSocketIntegration({ handler: connectHandler }) },
  disconnectRouteOptions: { integration: new LambdaWebSocketIntegration({ handler: disconnetHandler }) },

api-gateway aws javascript web-development programming

What is Geek Coin

What is GeekCash, Geek Token

Best Visual Studio Code Themes of 2021

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Hire Dedicated JavaScript Developers -Hire JavaScript Developers

Hire dedicated JavaScript Developers who are proficient in AngularJS, ReactJS, NodeJS, & VueJS frameworks. Get flexible hiring models as per your business requirements.

Hire AWS Developer

Looking to Hire Professional AWS Developers? The technology inventions have demanded all businesses to use and manage cloud-based computing services and Amazon is dominating the cloud computing services provider in the world. **[Hire AWS...

Hire Dedicated AWS Developer

Want to Hire AWS Developer for cloud computing services? At **[]( "")**, we leverage maximum benefits from the AWS platform ensuring prominent Solutions for business requirements....

JS Development Company India | JavaScript Development Services

Best JavaScript web app development company in India, PixelCrayons provides full stack JS development & maintenance. 16+ Yrs Exp., 60% less cost, Strict NDA

Hire AWS Developer - MageComp

Hire our Dedicated AWS developers for all your AWS development work. We help to create your cloud stage adaptation expedition mellow. At, MageComp we offer adroitness driven AWS cloud support for uplifting your E-commerce business. Our experienced and professional AWS developers will provide perfect AWS service and product consultation that helps you to carry out custom E-commerce requirements.