Connecting Android WebRTC to a Go gRPC signaling gateway

I wrote a sanitized engineering recap about connecting Android WebRTC clients to a Go gRPC signaling gateway.

www.lodan.me/posts/golang-grpc-webrtc-android/

The main point is not a specific API call. It is the boundary between three layers.

- Go gRPC handles registration call control callbacks and signaling events.

- Android handles permissions UI lifecycle local media setup and cleanup.

- WebRTC handles SDP ICE candidates tracks and connection state.

The debugging lesson is that these layers need shared identifiers and state logs. Otherwise a failure can look like a network issue a device issue or an SDK issue depending on which log stream you read first.

For those building WebRTC clients around a signaling gateway how much call state do you keep in the Android client and how much do you push into the gateway or backend