redis-streams-fastapi-chat

A simple demo of Redis Streams backed Chat app using Websockets, Python Asyncio and FastAPI/Starlette.

Requires Python version >= 3.11 and Redis 7+

Overview

This project has been created to help understand some related concepts. Python standard library asyncio, websockets (which are often cited as a classic use case for async python code), also Redis Streams. It is very much inteded to be an intentionally simple starting point rather than a usable product as is.

Installation

Local Development

$ pip install -r requirements.txt

Make sure you have Redis running locally:

$ redis-server

Usage

Local Development

$ python chat.py

Then open http://localhost:9080 in your browser.

Docker Compose

The easiest way to run the application with all dependencies:

$ docker-compose up

This will start both the chat application and Redis in containers. The app will be available at http://localhost:9080

Environment Variables

The following environment variables can be configured:

• REDIS_HOST - Redis server hostname (default: localhost, set to redis in Docker)
• REDIS_PORT - Redis server port (default: 6379)