This is a sanitized engineering recap about connecting Android WebRTC clients to a Go gRPC signaling gateway.
Source article:
https://www.lodan.me/posts/golang-grpc-webrtc-android/
The main boundary
The important part is not only creating a PeerConnection. The harder part is keeping signaling, Android lifecycle, and WebRTC media state separated enough to debug.
The boundary I use is:
- Go/gRPC owns registration, call control, callbacks, and signaling events.
- Android owns permissions, UI lifecycle, local audio/video resources, and cleanup.
- WebRTC owns offer/answer, ICE candidates, tracks, and connection state.
Why logs matter
When a call fails, the log needs to connect all layers. Useful fields include:
- call id
- peer id
- action
- signaling state
- ICE state
- selected candidate pair
- local and remote lifecycle state
Without these fields, the same failure can look like a network issue, a device issue, or a WebRTC SDK issue.
Full article
The full write-up covers gateway startup, device registration, callback boundaries, SdpObserver, PeerConnection.Observer, single-call and multi-call lifecycle, hold, hangup, broadcast, and cleanup:
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