unsubscribeFromTopic method

  1. @override
Future<void> unsubscribeFromTopic(
  1. String topic
)

Unsubscribe from topic in background.

Implementation

@override
Future<void> unsubscribeFromTopic(String topic) {
  throw UnimplementedError('''
    unsubscribeFromTopic() is not supported on the web clients.

    To learn how to manage subscriptions for web users, visit the
    official Firebase documentation:

    https://firebase.google.com/docs/cloud-messaging/js/topic-messaging
  ''');
}