tweeter.js

var Twitter = require('twitter');

var client = new Twitter({
consumer_key: process.env.TWITTER_CONSUMER_KEY,
consumer_secret: process.env.TWITTER_CONSUMER_SECRET,
access_token_key: process.env.TWITTER_ACCESS_TOKEN_KEY,
access_token_secret: process.env.TWITTER_ACCESS_TOKEN_SECRET
});

const fs = require('fs');

var long_string = fs.readFileSync(__dirname + "/tweetfromhere.txt").toString();


var short_string = new String("");

const tweet_length = 140;

if (long_string.length%tweet_length === 0)
{
   var num_tweets = long_string.length/tweet_length;
}
else
{
    var num_tweets = Math.floor(long_string.length/tweet_length);
    console.log(num_tweets);
}

for (i = 0; i <= num_tweets; i++)
{
    short_string = long_string.substr(i*tweet_length, tweet_length);
    var stat = {status: short_string}
    setTimeout(function(){
    client.post('statuses/update', stat,  function(error, tweet,response) {
  if(error) 
  {
    console.log(error);
  }
  //console.log(tweet);  // Tweet body. 
  console.log(response);  // Raw response object. 
  });

}, 3000);
}