Chat Server

A multi-client TCP broadcast chat server built with Tokio — because writing a chat server is the best way to actually understand async Rust in practice.

Every client that connects gets its own task. Messages broadcast to everyone. Ctrl+C shuts everything down cleanly — no dropped connections, no panics, no zombie tasks.

What it does

• Multiple clients connect over TCP simultaneously
• Every message broadcasts to all connected clients
• Graceful shutdown via Ctrl+C using CancellationToken
• Each client handled in its own Tokio task

Run it

cargo run

# connect from another machine on the same network
nc <your-local-ip> <port>

What it covers

• tokio::net::TcpListener and TcpStream
• broadcast channel for fan-out messaging
• CancellationToken for coordinated shutdown
• Concurrent task management with JoinSet