feat: expose asynchronous data channel send results - #281
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devopvoid merged 2 commits intoSep 8, 2026
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sendAsyncreports failures only in the log, so an application cannot learn that a message was rejected. This adds an overload that takes anRTCDataChannelSendObserverand calls it exactly once with the result of the native operation, including the case where libwebrtc discards a pending send during shutdown without invoking its completion. Success means the message was queued locally, not delivered. Exceptions thrown by the observer are cleared on the native thread so they cannot escape into libwebrtc. The guide gains a section describing the method and its threading rules.