usage : https://unseen2004.github.io/

A decentralized peer-to-peer chat application built with Rust and libp2p. It supports communication between terminal-based CLI clients and browser-based Web clients through a unified relay.

• cli/: Terminal-based chat client.
• web/: Browser-based chat client (see frontend/ and wasm/).
• relay/: A relay node supporting both TCP and WebSockets, enabling CLI and Web clients to discover and chat with each other.
• network/: Core networking logic for the CLI client.
• wasm/: Rust logic compiled to WebAssembly for the browser.
• common/: Shared Protobuf definitions and common utilities.
• frontend/: HTML and JavaScript for the web interface.

The relay node is required for Web clients to connect and for CLI clients to discover each other more easily.

cargo run --bin relay

Wait for the Relay PeerId to be printed (e.g., 12D3KooWDj...).

In a new terminal, start the CLI client and connect it to the relay.

# Connect to the local relay (port 8000)
cargo run --bin cli start --relay /ip4/127.0.0.1/tcp/8000/p2p/RELAY_PEER_ID

Replace RELAY_PEER_ID with the PeerId from the relay step.

To run the web version, you'll need wasm-pack and a simple HTTP server.

1. Build the WASM package:

   cd wasm
   # RUSTFLAGS are mandatory for getrandom 0.3/0.4 on WASM
   RUSTFLAGS='--cfg getrandom_backend="wasm_js"' wasm-pack build --target web --out-dir ../frontend/pkg
   cd ..

2. Serve the frontend:

   # Use any local server (e.g., python, http-server, etc.)
   cd frontend
   python3 -m http.server 8080

3. Chat: Open http://localhost:8080 in your browser. It will automatically attempt to connect to the relay on 127.0.0.1:8001/ws.

• Protobuf: Shared messages are defined in common/proto/chat.proto.
• Interoperability: The CLI uses TCP while the Web client uses WebSockets. The Relay bridges these protocols.