Start Liveness Verification

Calling startFaceAuthenticator

To start authentication, initialize FaceAuth with mobileToken and personId, then call start() and handle events using a listener:

  void startSDK() {
    final stream = _faceAuth.start();
    _setupFaceAuthListener(stream);
  }

  void _setupFaceAuthListener(Stream<FaceAuthEvent> stream) {
    stream.listen((event) {
      if (event is FaceAuthEventConnecting) {
        print('Connecting to FaceAuth...');
      } else if (event is FaceAuthEventConnected) {
        print('Connected to FaceAuth.');
      } else if (event is FaceAuthEventClosed) {
        print('SDK closed by the user.');
      } else if (event is FaceAuthEventSuccess) {
        print('Success! SignedResponse: ${event.signedResponse}');
      } else if (event is FaceAuthEventFailure) {
        print(
          'Failure! Error type: ${event.errorType}, '
              'Error description: ${event.errorDescription}',
        );
      }
    });
  }