index.js

const express = require('express');
const http = require('http');
const bodyParser = require('body-parser');
const morgan = require('morgan');
const app = express();
const router = require('./router');
const mongoose = require('mongoose');
// const cors = require('cors');
const cookieParser = require('cookie-parser');
const session = require('express-session');
const passport = require('passport');

var uristring =
  process.env.MONGODB_URI ||
  'mongodb://localhost:spending/spending';
// mongoose.connect('mongodb://localhost:spending/spending');
const port = process.env.PORT || 3090;
mongoose.connect(uristring, function (err, res) {
  if (err) {
    console.log ('ERROR connecting to: ' + uristring + '. ' + err);
  } else {
    console.log ('Succeeded connected to: ' + uristring);
  }
});

var allowCrossDomain = function(req, res, next) {
    res.header('Access-Control-Allow-Origin', '*');
    res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE,OPTIONS');
    res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization, Content-Length, X-Requested-With');
    if ('OPTIONS' == req.method) {
      res.send(200);
    } else {
      next();
    }
};

// app.use(morgan('combined'));
// app.use(cors());
app.use(cookieParser());
app.use(bodyParser.json());
app.use(allowCrossDomain);

router(app);

// const port = process.env.PORT || 3090;
const server = http.createServer(app);
server.listen(port);
console.log('Server listening on: '+port);