📁 P2P File Transfer

A lightweight real-time peer-to-peer (P2P) file transfer application using WebSockets, built with Rust (Axum) on the backend and Next.js on the frontend — structured as a mono-repo.

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⚙️ Features

• 📡 WebSocket-based real-time file streaming between peers
• 🔌 Peer registration and routing using unique connectionId
• 🔁 Direct binary data transfer (files) without server-side storage
• 🌐 Next.js UI for easy sharing between browsers
• 🧩 Mono-repo structure with separate /Backend and /Frontend folders

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📁 Folder Structure

.
├── Backend/       # Axum server with WebSocket logic
├── Frontend/      # Next.js frontend UI
├── .DS_Store      # macOS system file (ignored)
└── README.md

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🚀 Getting Started

1. Clone the repository

git clone https://github.com/your-username/p2p-file-transfer.git
cd p2p-file-transfer

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2. Run the Backend (Rust + Axum)

Ensure Rust is installed.

cd Backend
cargo run

✅ Backend runs at ws://localhost:8000/ws

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3. Run the Frontend (Next.js)

Requires Node.js v18+

cd ../Frontend
npm install
npm run dev

✅ Frontend runs at http://localhost:3000

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🔧 How It Works

• Each WebSocket connection is assigned a unique ID using Uuid.
• Clients send a register message to claim a connectionId.
• Messages with target_id are forwarded to the appropriate peer.
• Supports:
  • Text: JSON-based signaling for registration & session control
  • Binary: File data sent directly between browsers

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📸 Demo (Local)

1. Open two browser tabs at http://localhost:3000
2. Share the session code between them
3. Select or drag a file to start transferring

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✨ Built With

• Axum
• Next.js
• Tokio
• WebSocket API
• UUID