React Native

Disconnect from an SFTP Server

Demonstrates the Chilkat SFtp.Disconnect method, which closes the current SSH/SFTP connection. It takes no arguments. All remote file and directory handles from the session become invalid and must not be reused.

Background: Disconnecting releases the SSH transport and every SFTP handle opened on it. The object itself stays reusable, but a later session must repeat the full setup — Connect, authenticate, then InitializeSftp — because the SFTP subsystem does not survive a disconnect.

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React Native

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

async function chilkatExample() {
  // Demonstrates the SFtp.Disconnect method, which closes the current SSH/SFTP connection.  It
  // takes no arguments.  All remote file and directory handles from the session become invalid.

  const sftp = new SFtp();

  // Step 1: Connect the SSH transport.  Port 22 is the usual port.
  const port = 22;
  try {
    await sftp.connectAsync('sftp.example.com', port);
  } catch {
    console.log(sftp.lastErrorText);
    return;
  }

  // Normally you would not hard-code the password in source.  You should instead obtain it
  // from an interactive prompt, environment variable, or a secrets vault.
  const password = 'mySshPassword';

  try {
    await sftp.authenticatePwAsync('mySshLogin', password);
  } catch {
    console.log(sftp.lastErrorText);
    return;
  }

  // Step 3: Open the SFTP subsystem.  This must be done after authentication and before any
  // file or directory operations.
  try {
    await sftp.initializeSftpAsync();
  } catch {
    console.log(sftp.lastErrorText);
    return;
  }

  // ... perform SFTP operations ...

  // Close the connection.  The object remains reusable: a later session must Connect,
  // authenticate, and InitializeSftp again.
  sftp.disconnect();
}