React Native

SFTP Upload and Download to a StringBuilder Object

See more SFTP Examples

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

import { SFtp, StringBuilder } from '@chilkat/react-native'

async function chilkatExample() {
  let success = false;

  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  const sftp = new SFtp();

  // Set some timeouts, in milliseconds:
  sftp.connectTimeoutMs = 5000;
  sftp.idleTimeoutMs = 10000;

  // Connect to the SSH server and then authenticate.
  const port = 22;
  success = true;
  try {
    await sftp.connectAsync('MY-SSH-SERVER-DOMAIN-OR-IP', port);
  } catch {
    success = false;
  }
  if (success) {
    success = true;
    try {
      await sftp.authenticatePwAsync('MY-SSH-LOGIN', 'MY-SSH-PASSWORD');
    } catch {
      success = false;
    }
    if (success) {
      success = true;
      try {
        await sftp.initializeSftpAsync();
      } catch {
        success = false;
      }
    }
  }

  if (!success) {
    console.log(sftp.lastErrorText);
    return;
  }

  const sbA = new StringBuilder();
  sbA.loadFile('qa_data/hamlet.xml', 'utf-8');

  // Upload the contents of sbA to the SSH/SFTP server.
  const bIncludeBOM = false;
  const remotePath = 'sftpTesting/hamlet.xml';
  success = true;
  try {
    await sftp.uploadSbAsync(sbA, remotePath, 'utf-8', bIncludeBOM);
  } catch {
    success = false;
  }
  if (!success) {
    console.log(sftp.lastErrorText);
    return;
  }

  // Download the file..
  const sbB = new StringBuilder();
  success = true;
  try {
    await sftp.downloadSbAsync(remotePath, 'utf-8', sbB);
  } catch {
    success = false;
  }
  if (!success) {
    console.log(sftp.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.');
  }

  sftp.disconnect();
}