React Native

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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React Native

import { BinData, Socket } from '@chilkat/react-native'

async function chilkatExample() {
  const socket = new Socket();

  // Connect to the server using TLS.
  const bTls = true;
  const maxWaitMs = 5000;
  try {
    await socket.connectAsync('example.com', 5000, bTls, maxWaitMs);
  } catch {
    console.log(socket.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.
  const bd = new BinData();
  try {
    await socket.receiveBdAsync(bd);
  } catch {
    console.log(socket.lastErrorText);
    return;
  }

  console.log(`Received ${bd.numBytes} bytes.`);
}