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Flutter Realtime: Concurrent Modification during iteration
TypeScript
#0 _CompactIterator.moveNext (dart:collection-patch/compact_hash.dart:714:7)
#1 RealtimeMixin._createSocket.<anonymous closure> (package:appwrite/src/realtime_mixin.dart:91:49)
#2 _RootZone.runGuarded (dart:async/zone.dart:1582:10)
#3 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
#4 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#5 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:291:7)
#6 _ForwardingStream._handleDone (dart:async/stream_pipe.dart:99:10)
#7 _ForwardingStreamSubscription._handleDone (dart:async/stream_pipe.dart:161:13)
#8 _RootZone.runGuarded (dart:async/zone.dart:1582:10)
#9 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
TL;DR
Developers are experiencing a Concurrent Modification error while using the latest Appwrite Flutter SDK for Realtime. The issue is occurring during socket creation and stream handling, resulting in errors related to stream subscription and WebSocket closure. The error likely stems from iteration conflicts in the code, possibly in the RealtimeMixin file.
Solution: Review the RealtimeMixin.dart file around line 91 to ensure proper handling of stream iteration and modifications during socket creation. Consider restructuring the code to prevent concurrent modifications during iteration to resolve the issue. TypeScript
#10 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#11 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:291:7)
#12 _SyncStreamControllerDispatch._sendDone (dart:async/stream_controller.dart:792:19)
#13 _StreamController._closeUnchecked (dart:async/stream_controller.dart:647:7)
#14 _StreamController.close (dart:async/stream_controller.dart:640:5)
#15 new _WebSocketImpl._fromSocket.<anonymous closure> (dart:_http/websocket_impl.dart:1171:19)
#16 _RootZone.runGuarded (dart:async/zone.dart:1582:10)
#17 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
#18 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#19 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:291:7)
#20 _SinkTransformerStreamSubscription._close (dart:async/stream_transformers.dart:87:11)
#21 _EventSinkWrapper.close (dart:async/stream_transformers.dart:21:11)
#22 _WebSocketProtocolTransformer.close (dart:_http/websocket_impl.dart:118:17)
TypeScript
#23 _SinkTransformerStreamSubscription._handleDone (dart:async/stream_transformers.dart:132:24)
#24 _RootZone.runGuarded (dart:async/zone.dart:1582:10)
#25 _BufferingStreamSubscription._sendDone.sendDone (dart:async/stream_impl.dart:392:13)
#26 _BufferingStreamSubscription._sendDone (dart:async/stream_impl.dart:402:7)
#27 _BufferingStreamSubscription._close (dart:async/stream_impl.dart:291:7)
#28 _SyncStreamControllerDispatch._sendDone (dart:async/stream_controller.dart:792:19)
#29 _StreamController._closeUnchecked (dart:async/stream_controller.dart:647:7)
#30 _StreamController.close (dart:async/stream_controller.dart:640:5)
#31 _Socket._onData (dart:io-patch/socket_patch.dart:2454:21)
#32 _RootZone.runUnaryGuarded (dart:async/zone.dart:1594:10)
#33 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339:11)
#34 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:271:7)
#35 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:784:19)
#36 _StreamController._add (dart:async/stream_controller.dart:658:7)
#37 _StreamController.add (dart:async/stream_controller.dart:606:5)
#38 _RawSecureSocket._closeHandler (dart:io/secure_socket.dart:899:21)
#39 _RawSecureSocket._tryFilter (dart:io/secure_socket.dart:1029:11)<asynchronous suspension>
For more information: I am using the latest sdk of appwrite flutter
TypeScript
#1 RealtimeMixin._createSocket.<anonymous closure> (package:appwrite/src/realtime_mixin.dart:91:49)
