React Native

FTP Upload / Download to StringBuilder

Demonstrate how to upload from a Chilkat StringBuilder object, and download into a StringBuilder object. React Native

import { Ftp2, StringBuilder } 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 sbA = new StringBuilder();
  sbA.loadFile('qa_data/hamlet.xml', 'utf-8');

  // Upload the contents of sbA to the FTP server.
  const bIncludeBOM = false;
  const remoteFilename = 'hamletFromSb.xml';
  try {
    await ftp.putFileSbAsync(sbA, 'utf-8', bIncludeBOM, remoteFilename);
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }

  // Download...
  const sbB = new StringBuilder();
  try {
    await ftp.getFileSbAsync(remoteFilename, 'utf-8', sbB);
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }

  // Verify that sbA and sbB have the exact same contents.
  console.log(`size of sbA: ${sbA.length}`);
  const bCaseSensitive = true;
  if (sbA.contentsEqualSb(sbB, bCaseSensitive)) {
    console.log('Contents are equal. Success.');
  } else {
    console.log('Contents are NOT equal.  Failed.');
  }

  await ftp.disconnectAsync();
}