React Native

SFTP Sync Download Tree w/ Must-Match Directory Constraints

See more SFTP Examples

Demonstrates how SFTP synchronize a directory tree in the download direction, but only entering directories matching a set of wildcard filenames.

Note: This example requires Chilkat v9.5.0.76 or greater.

React Native

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

async function chilkatExample() {
  let success = false;

  const sftp = new SFtp();

  success = true;
  try {
    await sftp.connectAsync('my-ssh-server.com', 22);
  } catch {
    success = false;
  }
  if (success) {
    success = true;
    try {
      await sftp.authenticatePwAsync('mySshLogin', 'mySshPassword');
    } catch {
      success = false;
    }
  }

  if (success) {
    success = true;
    try {
      await sftp.initializeSftpAsync();
    } catch {
      success = false;
    }
  }

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

  // Possible synchronization modes are:
  // 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.

  // Only enter remote directories named either "data" or matching "x*"
  sftp.syncMustMatchDir = 'data; x*';

  // Imagine our remote directory tree has these files and directories:

  // 	accentedLatin1.txt
  // 	accentedUtf8.txt
  // 	alice.key
  // 	anter_cert.pem
  // 	chiliPepper.gif
  // 	helloWorld.pdf
  // 	abc/chiliPepper.gif
  // 	abc/ghk/
  // 	data/chiliPepper.gif
  // 	data/xyz/dkimHtmlBody.txt
  // 	data/xyz/dkimVerifyTest.eml
  // 	data/xyz/emailForCreateDsn.eml
  // 	text/frenchUtf8.txt
  // 	text/helloWorld.txt
  // 	text/PolishEmailBody.txt
  // 	text/something/

  const remoteDir = 'syncDownloadTest/someDir';
  const localDir = 'qa_output';
  const mode = 0;
  const recursive = true;
  success = true;
  try {
    await sftp.syncTreeDownloadAsync(remoteDir, localDir, mode, recursive);
  } catch {
    success = false;
  }
  if (!success) {
    console.log(sftp.lastErrorText);
    return;
  }

  // The following files were downloaded:

  // accentedLatin1.txt
  // accentedUtf8.txt
  // alice.key
  // anter_cert.pem
  // chiliPepper.gif
  // helloWorld.pdf
  // data/chiliPepper.gif
  // data/xyz/dkimHtmlBody.txt
  // data/xyz/dkimVerifyTest.eml
  // data/xyz/emailForCreateDsn.eml

  console.log('Success.');
}