#FastRTC mounted on FastAPI Server needs a python terminal client for audio comm. Please help

2 messages · Page 1 of 1 (latest)

sage crystal
#

Can anyone here help me build a python webrtc client to communicate with fastrtc fastapi mounted server? I'm struggling with aiortc. There's no clue in the documentation as well. Please DM if you can help

stiff sapphire
#

I’ve built Python WebRTC clients with aiortc against FastAPI backends—happy to help. Typical pain points are (1) signaling contract (exact JSON for /offer//answer), (2) ICE/STUN/TURN config, (3) media vs datachannel tracks, and (4) event loop/lifecycle gotchas in FastAPI (uvicorn + background tasks).

Quick checklist I use:

  • Define a clear signaling schema: {sdp, type, candidates}; no hidden fields.
  • Client flow: create RTCPeerConnection → add tracks/datachannel → createOffer() → setLocalDescription → POST to your FastAPI /webrtc/offer → setRemoteDescription(answer) → add ICE candidates as they arrive.
  • Ensure your server returns exact SDP (no codec munging unless intentional), and that ICE servers are reachable (test with a public STUN first).
  • For media: confirm codec compatibility (e.g., Opus/H264) and that you’re attaching MediaPlayer/MediaRelay correctly.
  • For data-only: start with a datachannel-only session to de-risk media.

If you share your signaling endpoints and a minimal snippet of the offer/answer exchange, I can point out what’s breaking and sketch a minimal working client you can extend. DM’s open if you prefer.