APP-14871: Add ReportConnectionMetadata RPC and client-side connection reporting#544
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Adds a new unary RPC and ICECandidateType enum to the signaling proto so that RDK clients can report which ICE candidate type was selected for a WebRTC connection. This enables the app to track per-org Twilio relay fallthrough without requiring any changes to the core ICE negotiation flow. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…er dial After ICE successfully connects in dialWebRTC, calls the new ReportICECandidateSelected RPC on the signaling server as a best-effort fire-and-forget operation. The selected candidate type is determined by inspecting the WebRTC stats report for the nominated candidate pair. Relay candidates are classified as coturn_relay (URL contains viam.com/viaminternal) or twilio_relay (all other relay servers). This gives the app per-org visibility into Twilio relay fallthrough without changing ICE negotiation behavior. The RDK picks up this behavior automatically when goutils is updated — no separate RDK change required. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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danielbotros
changed the title
This was referenced Mar 31, 2026
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Removed check for unspecified ICE candidate type in reporting.
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Description
APP-14871 Track coturn usage
ICECandidateTypeandSDKTypeenums and aReportConnectionMetadataunary RPC toSignalingServiceprotocoturn_relay, ortwilio_relaycoturn_relayif the TURN server URL containsviam.com/viaminternal, otherwisetwilio_relaydialWebRTC, callsReportConnectionMetadataon the signaling server as a best-effort fire-and-forget operation to record the successful attempt, candidate type, and SDK type (Go)Testing
Some logs were added and dial options messed with to turn off mDNS / ensure we connect through the local signaling server for this test.
viam-serverwith these changes + this change and a remoteviam-server.viam-serverThe candidate type and SDK type are sent to app in the
ReportConnectionMetadataRPC where they are recorded along with the org ID.