📡 Build a WebRTC Video Call App with MERN, Socket.io & STUN/TURN

Ever wondered how Zoom or Google Meet works under the hood?

I built a full‑stack video calling app using MERN + WebRTC + Socket.io – and you can too.

Here's the high-level architecture:

Frontend: React (Vite) + WebRTC APIs

Backend: Node.js + Express + Socket.io (signaling)

Database: MongoDB (call logs, auth)

NAT Traversal: STUN/TURN servers

🔁 How It Works

Users join a room via Socket.io

WebRTC exchanges SDP offers/answers

ICE candidates find the best connection path

Media streams flow peer-to-peer (or via TURN if direct fails)

💡 Why This Matters

Learn real‑time P2P media without third‑party APIs

Understand signaling, ICE, and NAT traversal

Build a foundation for Zoom‑like apps, telehealth, or collaboration tools

🛠️ Tech Stack Highlights

RTCPeerConnection & getUserMedia

Custom useWebRTC React hook

Socket.io room‑based signaling

Optional TURN relay for production

🚀 Get the Full Code & Step‑by‑Step Guide

The complete…