Send BinData Contents over a Socket

See more Socket/SSL/TLS Examples

Demonstrates Socket.SendBd, which sends bytes from a BinData beginning at an offset. A numBytes of 0 sends from the offset through the end of the data.

import 'package:chilkat/chilkat.dart';

void main() {
  final socket = CkSocket();

  // Connect to the server using TLS.
  final bTls = true;
  final maxWaitMs = 5000;
  try {
    socket.connect('example.com', 5000, bTls, maxWaitMs);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Place some bytes into a BinData to be sent.
  final bd = CkBinData();
  bd.appendString('message payload', 'utf-8');

  // Send bytes from the BinData starting at the given offset.  A numBytes of 0 sends from the offset
  // through the end of the data.
  try {
    socket.sendBd(bd, 0, 0);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Sent ${bd.numBytes} bytes.');
}