app.js

const express = require('express');
const path = require('path');
const bodyParser = require('body-parser');
const cors = require('cors');
const passport = require('passport');
const mongoose = require('mongoose');
const config = require('./config/database');

// Connect to database (this is from the comments since the old .connect() is deprecated)
mongoose.createConnection(config.database, {useMongoClient: true});

// Tell us that we connected to the DB
mongoose.connection.on('connected', function(){
    console.log('connected to database '+config.database);
});

mongoose.connection.on('error', function(err){
    console.log('Database error: '+err);
});

// This is to get rid of the promise deprecation warning:
mongoose.Promise = global.Promise;

const app = express();

const users = require('./routes/users');

// Port Number
const port = 8080

// CORS Middleware
app.use(cors());

// Set static folder (to serve website on /)
app.use(express.static(path.join(__dirname, 'public')))

// Body Parser Middleware
app.use(bodyParser.json());

// Say anything after users is from the /routes/users folder
app.use('/users', users);

// Index Route
app.get('/', function(req, res){
    res.send('Invalid endpoint');
});

// Start Server
app.listen(port, function(){
    console.log('Server started on port: '+ port);
});