React Native

SCP Sync Tree Download

See more SCP Examples

Synchronize local and remote directory trees by downloading newer or missing files from the remote server. React Native

import { Scp, Ssh } from '@chilkat/react-native'

async function chilkatExample() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  const ssh = new Ssh();

  // Connect to an SSH server:

  // Hostname may be an IP address or hostname:
  const hostname = 'www.some-ssh-server.com';
  const port = 22;

  try {
    await ssh.connectAsync(hostname, port);
  } catch {
    console.log(ssh.lastErrorText);
    return;
  }

  // Wait a max of 5 seconds when reading responses..
  ssh.idleTimeoutMs = 5000;

  // Authenticate using login/password:
  try {
    await ssh.authenticatePwAsync('myLogin', 'myPassword');
  } catch {
    console.log(ssh.lastErrorText);
    return;
  }

  // Once the SSH object is connected and authenticated, we use it
  // in our SCP object.
  const scp = new Scp();

  try {
    scp.useSsh(ssh);
  } catch {
    console.log(scp.lastErrorText);
    return;
  }

  const remoteRoot = 'workspace/php';
  const localRoot = 'c:/aaworkarea/scp/workspace/php';

  // Download synchronization modes:
  // mode=0: Download all files
  // mode=1: Download all files that do not exist on the local filesystem.
  // mode=2: Download newer or non-existant files.
  // mode=3: Download only newer files.  
  //         If a file does not already exist on the local filesystem, it is not downloaded from the server.
  // mode=5: Download only missing files or files with size differences.
  // mode=6: Same as mode 5, but also download newer files.
  const mode = 2;

  // Sync the entire tree by using recursion.
  const bRecurse = true;

  try {
    await scp.syncTreeDownloadAsync(remoteRoot, localRoot, mode, bRecurse);
  } catch {
    console.log(scp.lastErrorText);
    return;
  }

  console.log('SCP sync download success.');

  // Disconnect
  ssh.disconnect();
}