twitter.js

const Twitter = require('twitter')

const config = {
  consumer_key: 'secret',
  consumer_secret: 'secret',
  access_token_key: 'secret',
  access_token_secret: 'secret',
}

const client = new Twitter(config)

// https://github.com/desmondmorris/node-twitter#promises
const update = (status, in_reply_to_status_id = null) =>
  client.post('statuses/update', {
    status,
    in_reply_to_status_id,
    username: '@dance2die',
  })

update('Testing twitter NPM library')
  .then(tweet => {
    console.log(`tweet #1 ==>`, tweet)
    return update('Reply #1', tweet.id_str)
  })
  .catch(error => console.log(`error ==>`, error))