getWriteLength method

@override int getWriteLength()

Gets the length of the payload in bytes when written to a stream.

Implementation

@override
int getWriteLength() {
  var length = 0;
  final enc = MqttEncoding();
  subscriptions.forEach((String? key, MqttQos? value) {
    length += enc.getByteCount(key!);
    length += 1;
  });
  return length;
}