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Build log: shipping a real-time video app with WebRTC & Socket.io

Feb 18, 202513 min readHSHarshal Singh

What I learned wiring up signaling, ICE servers and connection recovery for MeetSpace — the unsexy parts of real-time.

WebRTC is one of those technologies that feels like magic for the first ten minutes and like quicksand for the next ten weeks. Here are the things I wish I'd known before starting MeetSpace.

Signaling is the easy part

Most tutorials stop after a working signaling server. That's about 20% of the actual work — the other 80% is reconnection, ICE restarts and graceful degradation.

You will need a TURN server

Symmetric NATs are everywhere. STUN-only setups will look perfect in dev and break for half your users in prod. Budget for TURN.

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#WebRTC#Node.js#Real-time
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Harshal Singh

Software Engineer · Mumbai, India

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