Real-Time Serverless Chat App

A fully serverless real-time chat application built on AWS using WebSockets. Messages are instantly broadcast to all connected clients without any servers to manage.

Architecture

• AWS API Gateway — WebSocket connections
• AWS Lambda — Python backend logic
• Amazon DynamoDB — stores connections and messages

Features

• Real-time messaging via WebSockets
• Multiple chat channels
• Custom nicknames
• Fully serverless — no servers to manage

Prerequisites

• AWS Account
• AWS CLI configured
• AWS SAM CLI installed
• Python 3.x

Deployment

git clone https://github.com/YOUR_USERNAME/serverless-websocket-chat
cd serverless-websocket-chat
sam build
sam deploy --guided

Usage

Connect using wscat:

./node_modules/.bin/wscat -c wss://YOUR_ENDPOINT

Commands:

• /name John — set your nickname
• /channel random — switch channel
• /help — list commands

Cleanup

sam delete

License

MIT-0