connect method Null safety

  1. @override
Future<MqttClientConnectionStatus?> connect(
  1. [String? username,
  2. String? password]

Performs a connect to the message broker with an optional username and password for the purposes of authentication. If a username and password are supplied these will override any previously set in a supplied connection message so if you supply your own connection message and use the authenticateAs method to set these parameters do not set them again here.


Future<MqttClientConnectionStatus?> connect(
    [String? username, String? password]) async {
  instantiationCorrect = true;
  clientEventBus = events.EventBus();
  connectionHandler = SynchronousMqttBrowserConnectionHandler(
    maxConnectionAttempts: maxConnectionAttempts,
  return await super.connect(username, password);