Create a websocket chat application with API Gateway - AWS SDK Code Examples

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

Create a websocket chat application with API Gateway

The following code example shows how to create a chat application that is served by a websocket API built on Amazon API Gateway.

Python
SDK for Python (Boto3)

Shows how to use the AWS SDK for Python (Boto3) with Amazon API Gateway V2 to create a websocket API that integrates with AWS Lambda and Amazon DynamoDB.

  • Create a websocket API served by API Gateway.

  • Define a Lambda handler that stores connections in DynamoDB and posts messages to other chat participants.

  • Connect to the websocket chat application and send messages with the Websockets package.

For complete source code and instructions on how to set up and run, see the full example on GitHub.

Services used in this example

  • API Gateway

  • DynamoDB

  • Lambda