TOTP with Node.js

main.js

'use strict';

var notp = require('notp'),
    thirty_two = require('thirty-two');

var stdin = process.openStdin();

console.log("Entery TOTP key:");
stdin.addListener("data", function(d) {
  var key = d.toString().trim().replace(/ /g, '');
  var totp_token = notp.totp.gen(thirty_two.decode(key));
  console.log("TOTP token: " + totp_token);
});