Simple script to test library: https://github.com/sergi/jsftp

jsftp_test.js

const userInfo = "sanzhar"
const passInfo = "unist"

const jsftp = require("jsftp");
const Ftp = new jsftp({
  host: "mico.knu.ac.kr",
  port: 22, // defaults to 21
  user: userInfo, // defaults to "anonymous"
  pass: passInfo // defaults to "@anonymous"

});

Ftp.ls(".", (err, res) => {
  res.forEach(file => console.log(file.name));
});

Ftp.raw("quit", (err, data) => {
  if (err) {
    return console.error(err);
  }
 
  console.log("Bye!");
});