React Native

SCP Download Files Matching a Pattern, such as *.txt

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Demonstrates how to SCP download files matching a pattern, such as *.txt. 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:
  const hostname = 'MY-SSH-SERVER-DOMAIN-OR-IP';
  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('MY-SSH-LOGIN', 'MY-SSH-PASSWORD');
  } catch {
    console.log(ssh.lastErrorText);
    return;
  }

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

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

  scp.heartbeatMs = 200;

  // Set the SyncMustMatch property to "*.pem" to download only .pem files
  scp.syncMustMatch = '*.pem';

  const remoteDir = 'qa_syncA';
  const localDir = 'c:/aaworkarea/scp/qa_syncA';

  // 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 = 0;

  // Do not recurse the remote directory tree.  Only download files matching *.pem
  // from the given remote directory.
  const bRecurse = false;

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

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

  // Disconnect
  ssh.disconnect();
}