Node.js connect to ftp and download files

Hello i downloaded this npm module to connect to my ftp : node-ftps

connection class

var FTPS = require('ftps');
var ftps = new FTPS({
  host: 'myhost',
  username: 'user',
  password: 'mypw',
  protocol: 'ftp'
});

ftps.exec(function (err, res) {
  console.log();
});

how can i check if the connection was successful and how can i get all files from my path!

tryed to add an file but get an error i didn't even know if im connected

via Alex