React Native

SFTP Public-Key Authentication

See more SFTP Examples

Demonstrates how to authenticate with an SSH/SFTP server using publickey authentication. React Native

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

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

  const sftp = new SFtp();

  // Set some timeouts, in milliseconds:
  sftp.connectTimeoutMs = 5000;
  sftp.idleTimeoutMs = 15000;

  // Connect to the SSH server.  
  // The standard SSH port = 22
  // The hostname may be a hostname or IP address.
  const hostname = 'sftp.example.com';
  const port = 22;
  try {
    await sftp.connectAsync(hostname, port);
  } catch {
    console.log(sftp.lastErrorText);
    return;
  }

  const key = new SshKey();

  // Load a PEM file into a string variable:
  // (This does not load the PEM file into the key.  The LoadText
  // method is a convenience method for loading the full contents of ANY text
  // file into a string variable.)
  let privKey: string;
  try {
    privKey = key.loadText('myPrivateKey.pem');
  } catch {
    console.log(key.lastErrorText);
    return;
  }

  // Load a private key from a PEM string:
  // (Private keys may be loaded from OpenSSH and Putty formats.
  // Both encrypted and unencrypted private key file formats
  // are supported.  This example loads an unencrypted private
  // key in OpenSSH format.
  try {
    key.fromOpenSshPrivateKey(privKey);
  } catch {
    console.log(key.lastErrorText);
    return;
  }

  // Authenticate with the SSH server.  Chilkat SFTP supports
  // both password-based authenication as well as public-key
  // authentication.  
  try {
    await sftp.authenticatePkAsync('myLogin', key);
  } catch {
    console.log(sftp.lastErrorText);
    return;
  }

  console.log(sftp.lastErrorText);
  console.log('Public-Key Authentication Successful!');
}