Peer Drop

05sanjaykumar

Real-time, peer-to-peer file sharing and chat app using WebRTC, Go, and SvelteKit — encrypted, fast, and serverless in communication.

#chat #docker #encryption #file-transfer #go #p2p #real-time #svelte #webrtc

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📡 PeerDrop

PeerDrop is a secure, real-time peer-to-peer (P2P) file sharing and chat application built with modern technologies like SvelteKit, Go, WebRTC, and Docker.

🔥 Real-time. 🔐 End-to-end encrypted. ⚙️ Fully containerized.

🚀 Features

🔌 Real-time P2P communication via WebRTC
🧭 Signaling server built in Go with WebSocket
🗂 Secure file transfer using AES-GCM encryption
💬 Encrypted chat over RTCDataChannel
🆔 Optional ECC keypair identity system
🛠 Dockerized setup for client & server
📦 Easy to run, test, and deploy

📦 Tech Stack

Layer	Tech	Purpose
Frontend	SvelteKit	Reactive UI + routing
Backend	Go	Signaling server
Networking	WebSocket + WebRTC	Real-time P2P transport
Security	AES-GCM, PBKDF2, ECC (opt-in)	End-to-end encryption
DevOps	Docker + Docker Compose	Containerized app infrastructure

📁 Project Structure


peerdrop/
├── client/                 # SvelteKit frontend
│   ├── src/
│   │   ├── routes/         # Pages (UI)
│   │   ├── lib/            # Encryption, WebRTC logic
│   └── static/             # Public files
├── server/                 # Go signaling server
│   ├── main.go
│   ├── handlers.go
│   └── Dockerfile
├── docker-compose.yml      # Full stack orchestration
└── README.md               # You're here!

🛠 Setup & Development

Prerequisites

Go (>=1.20)
Node.js (>=18) + pnpm
Docker + Docker Compose

🧑‍💻 Local Dev

1. Clone the Repo

git clone https://github.com/05sanjaykumar/Peer-Drop.git
cd peerdrop

2. Run Signaling Server (Go)

cd server
go run main.go

3. Run SvelteKit Client

cd client
pnpm install
pnpm dev

Visit: http://localhost:5173

🐳 Docker Deployment

To run the whole app using Docker:

docker-compose up --build

Frontend: http://localhost:3000 Backend (WebSocket): ws://localhost:8080/ws

🔐 Security Model

Files & Chat encrypted with AES-GCM
Optional ECC keypair generation for identity
Fingerprints can be used to verify user authenticity

📌 Roadmap

WebSocket signaling server in Go
SvelteKit frontend + WebRTC handshake
Encrypted file transfer
Encrypted chat
ECC keypair identity system
Drag & drop upload, file previews
Docker production deployment

🧠 Learnings & Concepts

WebRTC, ICE, SDP, STUN
Real-time messaging protocols
Cryptographic key exchange
Concurrency with Go
SvelteKit UI + reactive state
Docker container orchestration

🤝 Contributing

Want to improve or extend PeerDrop? PRs are welcome! Please open an issue for major feature discussions.

📖 License

🌍 Credits

This project is a hands-on learning initiative to explore the intersection of networking, frontend frameworks, cryptography, and real-time systems.

Built with ❤️ by @yourusername

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