Simple node server with socket.io configuration and tweet stream api

config.js

module.exports = {
  twitter: {
    consumer_key: '',
    consumer_secret: '',
    token: '',
    token_secret: ''
  },
  tracking: {
    dev: ['gobelinou', 'taratta'],
    prod: ['gobelinou']
  }
}

package.json

{
  "name": "server",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "engines": {
    "node": "8.9.4"
  },
  "scripts": {
    "dev": "NODE_DEV=true node server.js",
    "start": "node server.js"
  },
  "author": "les-sauveteurs.com",
  "license": "ISC",
  "dependencies": {
    "bufferutil": "3.0.3",
    "express": "4.16.2",
    "node-tweet-stream": "^2.0.3",
    "utf-8-validate": "4.0.0",
    "socket.io": "^2.0.4"
  }
}

server.js

'use strict'

const config = require('./config')
const express = require('express')
const path = require('path')
const socketIO = require('socket.io')
const Twitter = require('node-tweet-stream')(config.twitter)

const PORT = process.env.PORT || 3000
const DEV = process.env.NODE_DEV
const Trackers = DEV ? config.tracking.dev : config.tracking.prod
const INDEX = path.join(__dirname, 'index.html')

const server = express()
  .use((req, res) => res.sendFile(INDEX))
  .listen(PORT, () => console.log(`Listening on ${ PORT }`))

const io = socketIO(server)

io.on('connection', (socket) => {
  console.log('Client connected');
  socket.on('disconnect', () => console.log('Client disconnected'));
});


// Twitter configure
Twitter.on('tweet', function (tweet) {
  console.log('tweet received', tweet)
  const parseTweet = {
    id: tweet.id,
    user: {
      id: tweet.user.id,
      name: tweet.user.name,
      location: tweet.user.location,
    },
    text: tweet.text,
    timestamp: tweet.timestamp,
    hashtags: tweet.entities.hashtags
  }

  io.emit('tweet', parseTweet)

  console.log(parseTweet)
})

Twitter.on('error', function (err) {
  console.log('Oh no')
})


Trackers.forEach(function (tracker) {
  console.log('tracker', tracker)
  Twitter.track(tracker)
})