React Native

FTP Upload / Download to a BinData Object

Demonstrates how to FTP upload the contents of a BinData object, and FTP downloads to the a BinData object. React Native

import { BinData, Ftp2 } from '@chilkat/react-native'

async function chilkatExample() {
  // This example assumes Chilkat Ftp2 to have been previously unlocked.
  // See Unlock Ftp2 for sample code.

  const ftp = new Ftp2();

  ftp.hostname = 'www.my-ftp-server.com';
  ftp.username = 'mFtpLogin';
  ftp.password = 'myFtpPassword';

  // Connect to the FTP server.
  try {
    await ftp.connectOnlyAsync();
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }

  // Authenticate with the FTP server.
  try {
    await ftp.loginAfterConnectOnlyAsync();
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }

  const bdA = new BinData();
  bdA.loadFile('qa_data/jpg/penguins.jpg');

  // Upload the contents of bdA to the FTP server.
  const remoteFilename = 'penguins.jpg';
  try {
    await ftp.putFileBdAsync(bdA, remoteFilename);
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }

  // Download...
  const bdB = new BinData();
  try {
    await ftp.getFileBdAsync(remoteFilename, bdB);
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }

  // Verify that bdA and bdB have the exact same contents.
  console.log(`size of bdA: ${bdA.numBytes}`);
  if (bdA.contentsEqual(bdB)) {
    console.log('Contents are equal. Success.');
  } else {
    console.log('Contents are NOT equal.  Failed.');
  }

  await ftp.disconnectAsync();
}