index.js

const express = require('express');
const app = express();
const morgan = require('morgan');
const mongoose = require('mongoose');
const cookieSession = require('cookie-session');
const passport = require('passport');
const bodyParser = require('body-parser');
const keys = require('./config/keys');
// const server = require('http').Server(app);
const server = require('http').createServer(app);
const io = require('socket.io')(server);

require('./models/User');
require('./models/Survey');
require('./services/passport');

mongoose.Promise = global.Promise;
mongoose.connect(keys.mongoURI);

app.use(bodyParser.urlencoded({ limit: '50mb', extended: true, parameterLimit: 50000 }));
app.use(bodyParser.json({ limit: '50mb' }));
app.use(morgan('dev'));
app.use(function(req, res, next) {
  res.setHeader('Access-Control-Allow-Origin', '*');
  res.setHeader('Access-Control-Allow-Methods', 'GET, POST');
  res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type, Authorization');
  next();
});
app.use(
  cookieSession({
    maxAge: 30 * 24 * 60 * 60 * 1000,
    keys: [keys.cookieKey]
  })
);
app.use(passport.initialize());
app.use(passport.session());

require('./routes/authRoutes')(app);
require('./routes/billingRoutes')(app);
require('./routes/surveyRoutes')(app);
require('./routes/analyzeRoutes')(app);
require('./routes/wweRoutes')(app, io);

if (process.env.NODE_ENV === 'production') {
  // Express will serve up production assets
  // like our main.js file, or main.css file!
  app.use(express.static('client/build'));

  // Express will serve up the index.html file
  // if it doesn't recognize the route
  const path = require('path');
  app.get('*', (req, res) => {
    res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'));
  });
}

const PORT = process.env.PORT || 5201;
server.listen(PORT);