Disconnect from an SFTP Server

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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.

import 'package:chilkat/chilkat.dart';

void main() {
  // 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.

  final sftp = CkSFtp();

  // Step 1: Connect the SSH transport.  Port 22 is the usual port.
  final port = 22;
  try {
    sftp.connect('sftp.example.com', port);
  } on ChilkatException catch (e) {
    print(e.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.
  final password = 'mySshPassword';

  try {
    sftp.authenticatePw('mySshLogin', password);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Step 3: Open the SFTP subsystem.  This must be done after authentication and before any
  // file or directory operations.
  try {
    sftp.initializeSftp();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // ... perform SFTP operations ...

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