Computer Network: Peer-to-Peer Sharing

A full-stack project peer-to-peer file-sharing platform facilitating decentralized file distribution among multiple peers.

Capstone Project | Team Size: 1 Timeline: 5/2025 - Now

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📌 Description

This project implements a simplified BitTorrent-style network, consisting of:

• Tracker Server: Manages peer registrations and distributes file metadata.

• Peer Application: Each peer can announce available files, query the tracker, and download or upload file chunks to other peers.

• Web UI: Real-time dashboard to monitor tracker and peer status.

Support decentralized protocols and P2P interaction in learning environments.

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🚀 Technologies Used

Backend

• Node.js, Express.js

• RESTful API design

• UUID for peer identification

Frontend

• React.js, Vite

• Tailwind CSS for styling

• Axios for HTTP communication

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🧹 Core Functionalities

• Peer Registration: Register and deregister peers with the tracker.

• File Announcement: Peers announce available files and their chunk availability.

• Chunk Exchange: Peers request and serve file chunks to each other.

• Real-time Monitoring: Web dashboard displays online peers, shared files, and transfer statistics.

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🛠️ Setup Instructions

1. Clone repository

• git clone https://github.com/doandinhhao/computer-network.git
• cd computer-network

2. Install dependencies

• npm run install-all

3. Configure environment
   • Create a .env file at project root:
     • TRACKER_HOST=http://localhost
     • TRACKER_PORT=3000
     • PEER_PORT=3001
     • FRONTEND_PORT=5173
4. Run components

• Tracker: npm run tracker
• Peer: npm run peer
• UI: npm run front

5. Multi-peer test

• npm run test

Visit http://localhost:5173 to view the dashboard and peer UI.

📶 Local Access

• Tracker API: http://localhost:3000

• Peer UI: http://localhost:5173