8000 Fix type error in data channel event listener by 41y08h · Pull Request #914 · flutter-webrtc/flutter-webrtc · GitHub
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Fix type error in data channel event listener #914

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Fix type error in data channel event listener #914

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41y08h
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@41y08h 41y08h commented Apr 13, 2022

Hey $reader,
I just noticed that when I successfully establish a peer connection, I get this error, and tracing it gives me the changes proposed.
The variable map[id] is not always a string and that gives the error.

E/flutter (21744): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: type 'int' is not a subtype of type 'String'
E/flutter (21744): #0      RTCDataChannelNative.eventListener
package:flutter_webrtc/…/native/rtc_data_channel_impl.dart:54
E/flutter (21744): #1      _rootRunUnary (dart:async/zone.dart:1436:47)
E/flutter (21744): #2      _CustomZone.runUnary (dart:async/zone.dart:1335:19)
E/flutter (21744): #3      _CustomZone.runUnaryGuarded (dart:async/zone.dart:1244:7)
E/flutter (21744): #4      _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
E/flutter (21744): #5      _DelayedData.perform (dart:async/stream_impl.dart:591:14)
E/flutter (21744): #6      _StreamImplEvents.handleNext (dart:async/stream_impl.dart:706:11)
E/flutter (21744): #7      _PendingEvents.schedule.<anonymous closure> (dart:async/stream_impl.dart:663:7)
E/flutter (21744): #8      _rootRun (dart:async/zone.dart:1420:47)
E/flutter (21744): #9      _CustomZone.run (dart:async/zone.dart:1328:19)
E/flutter (21744): #10     _CustomZone.runGuarded (dart:async/zone.dart:1236:7)
E/flutter (21744): #11     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1276:23)
E/flutter (21744): #12     _rootRun (dart:async/zone.dart:1428:13)
E/flutter (21744): #13     _CustomZone.run (dart:async/zone.dart:1328:19)
E/flutter (21744): #14     _CustomZone.runGuarded (dart:async/zone.dart:1236:7)
E/flutter (21744): #15     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1276:23)
E/flutter (21744): #16     _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
E/flutter (21744): #17     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)

@ycherniavskyi
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ycherniavskyi commented Apr 13, 2022 •
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It seems that this PR duplicate #912, and as pointed there, this issue must be resolved in the native part of the library.

@cloudwebrtc
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id must be int or null, so use #924 instead

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@41y08h @ycherniavskyi @cloudwebrtc
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