Video architecture: design professional WebRTC infrastructure
Short answer
A professional video architecture is not just a WebRTC flow between two browsers. It assembles signaling, network connectivity (STUN/TURN), media distribution (SFU), video API, authentication, storage, and observability. Quality, resilience, and compliance depend on how these layers connect.
Minimal video architecture schema
Browsers / mobile / agent workstations
↕ HTTPS / WSS
Signaling + authentication
↕ ICE / STUN / TURN
SFU (real-time media routing)
↕ API / webhooks / business rules
Business apps (CRM, portal, SSO, ticketing)
↕ storage / logs / monitoring
Recordings, audit, metrics
Six building blocks to master
1. Video clients
Browser or mobile captures camera, microphone, screen share, encodes and renders streams.
2. Signaling
Orchestrates sessions: room creation, SDP exchange, presence, moderation. Typically HTTPS/WSS.
3. ICE / STUN / TURN connectivity
ICE picks the best network path. See STUN and TURN.
4. SFU
Routes streams in multi-participant sessions. Central block for serious business use. See SFU WebRTC.
5. Video API and application logic
REST API, webhooks, JWT tokens connect video to CRM, portals, workflows. See video API.
6. Hosting and compliance
France hosting, GDPR, DPA, subprocessors documentation.
Architecture patterns
| Pattern | Complexity | Use case |
|---|---|---|
| Link + token | Low | Support, appointments |
| Embedded iframe | Medium | Customer portal |
| JavaScript SDK | Medium–High | Custom UX |
| Full API integration | High | SI-native workflows |
→ Custom video integration · Embedded video
How does Leagora design video architecture?
Workshops, network/firewall scoping, sovereign WebRTC deployment, API integration. Contact.
FAQ
Where does video architecture start?
With the business journey: who joins, from where, what SI context, what data residency rules.
Is signaling the same as the video API?
No: signaling handles WebRTC session setup; the API orchestrates rooms, tokens, and business events.
Can architecture be on-premise?
Yes: all components can run in the customer datacenter.
Key takeaways
- Video architecture = signaling + ICE + SFU + API + auth + observability.
- Start from business journey and compliance, not from a meeting app feature list.