addJoinListener method

Future<void> addJoinListener(
  1. Function callback, {
  2. void onError(
    1. String error
    )?,
})

Implementation

Future<void> addJoinListener(Function callback,
        {void onError(String error)?}) =>
    _methodChannel.invokeMethod(
        "Backendless.Messaging.Channel.addJoinListener", {
      "channelHandle": _channelHandle
    }).then((handle) => BackendlessMessaging._joinCallbacks[handle] =
        new EventCallback(callback, onError));