Generates an Authentication Token from username and password for basic authentication

generateToken.js

'use strict';

const ENCODING = 'base64';

function token(user, pass) {
  return base64([user, pass].join(':'));
}

function base64(string) {
  return new Buffer(string).toString(ENCODING);
}

const args = process.argv.slice(2);
const username = args[0] ? args[0] : null;
const password = args[1] ? args[1] : null;

if (!username) {
  console.log('please provide a username as first argument');
  return;
}

if (!password) {
  console.log('please provide a password as second argument');
  return;
}

const authToken = token(username, password);
console.log(authToken);

Usage

chmod +x generateToken.js
node generateToken.js username password
# output: dXNlcm5hbWU6cGFzc3dvcmQ=