old_contents: const express = require('express')
  const path = require('path')
  const nlp = require('compromise')
  const sentiment = require('sentiment')
  const Twit = require('twit')
  const fs = require('fs')
  
  
  let credentials
  
  process.env.NODE_ENV === 'development'
      ? credentials = require('./credentials.json')
      : {
          consumer_key: process.env.CONSUMER_KEY,
          consumer_secret: process.env.CONSUMER_SECRET,
          access_token: process.env.ACCESS_TOKEN,
          access_token_secret: process.env.ACCESS_TOKEN_SECRET,
          mongo_url: process.env.MONGO_URL
      }
  
  const app = express()
  
  app.use(express.static(path.resolve(__dirname, '..', '../build')))
  
  
  app.use(express.static(path.resolve(__dirname, '..', '../build')))
  
  app.get('*', (req, res) => {
      res.sendFile(path.resolve(__dirname, '..', '../build', 'index.html'))
  })
  
  const listenForTweets = () => {
      const twitter = new Twit(credentials)
      const sanFrancisco = [ '-122.75', '36.8', '-121.75', '37.8' ] // Top Right, Bottom Left coordinates
      const marquetteCampus = [
          '-87.942874',  // longitude @ 23rd/State St.
          '43.037529',   // latitude @ 23rd/State St.
          '-87.9210',    // longitude @ 8th/Michigan St.
          '43.0427577'   // latitude @ 8th/Michigan St.
      ]
      const stream = twitter.stream('statuses/filter', { locations: marquetteCampus })
  
  }
  
  module.exports = app
new_contents: const express = require('express')
  const path = require('path')
  const nlp = require('compromise')
  const sentiment = require('sentiment')
  const Twit = require('twit')
  const fs = require('fs')
  
  
  let credentials
  
  process.env.NODE_ENV === 'development'
      ? credentials = require('./credentials.json')
      : {
          consumer_key: process.env.CONSUMER_KEY,
          consumer_secret: process.env.CONSUMER_SECRET,
          access_token: process.env.ACCESS_TOKEN,
          access_token_secret: process.env.ACCESS_TOKEN_SECRET,
          mongo_url: process.env.MONGO_URL
      }
  
  const app = express()
  
  app.use(express.static(path.resolve(__dirname, '..', 'build')))
  
  app.get('*', (req, res) => {
      res.sendFile(path.resolve(__dirname, '..', 'build', 'index.html'))
  })
  
  const listenForTweets = () => {
      const twitter = new Twit(credentials)
      const sanFrancisco = [ '-122.75', '36.8', '-121.75', '37.8' ] // Top Right, Bottom Left coordinates
      const marquetteCampus = [
          '-87.942874',  // longitude @ 23rd/State St.
          '43.037529',   // latitude @ 23rd/State St.
          '-87.9210',    // longitude @ 8th/Michigan St.
          '43.0427577'   // latitude @ 8th/Michigan St.
      ]
      const stream = twitter.stream('statuses/filter', { locations: marquetteCampus })
  
  }
  
  module.exports = app
subject: Build path should be correct for Heroku...