joining with expired token, there is not any event which show token expired.

[bittuRichestsoft]

Version of the agora_rtc_engine

6.3.1

Platforms affected

• Android
• iOS
• macOS
• Windows
• Web

Steps to reproduce

I am trying to join a video call with agora RTC engine with expired token. But there is not any event which providing any information regarding the token expired. onTokenPrivilegeWillExpire giving response before 30 seconds but it calling when token valid and call is continue. But i need information if i am trying to join call with expired token. So i expect there should be any event/function which will provide the information regarding token validity, its expired or alive yet.

Expected results

i expect there should be any event/function which will provide the information regarding token validity, its expired or alive yet.

Actual results

there is not any event which providing any information regarding the token expired

Code sample

Code sample

[Paste your code here]
```  rtcEngine?.registerEventHandler(
      RtcEngineEventHandler(
        onJoinChannelSuccess: (RtcConnection connection, int elapsed) async {
          print(
              "agoraEvent onJoinChannelSuccess local user ${connection.localUid} joined");

          localUserJoined = true;
          localJoinedUserId = connection.localUid!;

          print("localJoinedUserId is =$localJoinedUserId");

          notifyListeners();
        },
        onUserJoined: (RtcConnection connection, int remoteUid, int elapsed) {
          debugPrint(
              "agoraEvent connection onUserJoined remote user $remoteUid joined");
          /*if (previewingUserIndx == 0) {
              previewingUserIndx = remoteUid;
          }*/
          // remoteUids = remoteUid;
          remoteUserLst.add(RemoteUser(remoteUid: remoteUid,isAudio: true,isVideo: true));
          notifyListeners();
        },
        onUserOffline: (RtcConnection connection, int remoteUid,
            UserOfflineReasonType reason) {
          debugPrint(
              "agoraEvent onUserOffline remote user $remoteUid left channel");

        for(int checkUsr =0; checkUsr < remoteUserLst.length; checkUsr++ )
{
if(remoteUid==remoteUserLst[checkUsr].id) {
  debugPrint( "id matched ${remoteUid}==${remoteUserLst[checkUsr].id}");
  remoteUserLst.removeAt(checkUsr);
}
// return ;
}
        notifyListeners();

          debugPrint(  "remain remoteUids ${remoteUserLst.length}");


        },
        onUserMuteAudio: (connection, remoteUid, muted) {
          debugPrint("agoraEvent onUserMuteAudio user $remoteUid muted=$muted");


          for(int i = 0; i< remoteUserLst.length; i++){

            if(remoteUserLst[i].id==remoteUid)
            {
              remoteUserLst[i].isAudiEnabled=!muted;
              notifyListeners();
              debugPrint("changedAudio of user $remoteUid is=${remoteUserLst[i].isAudiEnabled}");

            }
          }


        },


        onUserMuteVideo: (connection, remoteUid, muted) {
          debugPrint("agoraEvent onUserMuteVideo user $remoteUid muted=$muted");

          for(int i = 0; i< remoteUserLst.length; i++){

 if(remoteUserLst[i].id==remoteUid)
   {
     remoteUserLst[i].isVideoEnabled=!muted;
     notifyListeners();
     debugPrint("changedVideo of user $remoteUid is=${remoteUserLst[i].isVideoEnabled}");

   }
          }

        },
        onUserEnableVideo: (connection, remoteUid, muted) {
          debugPrint(
              "agoraEvent onUserEnableVideo user $remoteUid muted=$muted");

     /*     for(int i = 0; i< remoteUids.length; i++){

            if(remoteUids[i].id==remoteUid)
            {
              remoteUids[i].isVideoEnabled=true;
            }
          }

          notifyListeners();*/




        },
        onTokenPrivilegeWillExpire: (RtcConnection connection, String token) {
          debugPrint(
              'agoraEvent [onTokenPrivilegeWillExpire] connection: ${connection.toJson()}, token: $token');
        },
        onLeaveChannel: (connection, stats) {

      //    remoteUids = null;

          notifyListeners();
        },
        onNetworkQuality: (connection, remoteUid, txQuality, rxQuality) {
          // debugPrint("agoraEvent onNetworkQuality");
        },

onStreamMessageError: ( RtcConnection connection, int remoteUid, int streamId,
    ErrorCodeType code, int missed, int cached) {
  debugPrint ("onStreamMessageError connection=$connection remoteUid=$remoteUid streamId=$streamId code=$code missed=$missed cached=$cached");
},

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