Dart

Receive Bytes into a BinData

Demonstrates Socket.ReceiveBd, which receives one delivery of binary data and appends it to a BinData. It returns whatever is immediately available.

Background. The BinData receive methods accumulate raw bytes in a BinData object. A single receive returns only what is currently available, whereas the counted receive waits for an exact number of bytes.

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Dart

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;
  }

  // Receive one delivery of binary data and append it to a BinData.  ReceiveBd returns whatever is
  // immediately available; it does not loop to drain everything that may follow.
  final bd = CkBinData();
  try {
    socket.receiveBd(bd);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

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