server.js

///////////////////////////////////////////////////////////
//  Import modules
///////////////////////////////////////////////////////////
const path = require("path")
const express = require("express")
const cors = require("cors")
const bodyParser = require("body-parser")
const mongoose = require("mongoose")
const passport = require("passport")
const session = require("express-session")
const MongoStore = require("connect-mongo")(session)
const favicon = require("serve-favicon")
require("dotenv").config({path: path.resolve(__dirname, ".env"), })


///////////////////////////////////////////////////////////
//  Configure and connect to MongoDB database
///////////////////////////////////////////////////////////
const dbconf = require("./db.js")
mongoose.Promise = global.Promise
mongoose
  .connect(dbconf.url, dbconf.options)
  .catch(({message,}) => {
    console.error(`Unable to connect to the mongodb instance: ${message}`)
  })

const db = mongoose.connection
db.on("error", ({message,}) => {
  console.error(`Mongoose default connection error: ${message}`) 
})
db.once("open", () => {
  console.info(`Mongoose default connection opened [${dbconf.db}]`)
})


///////////////////////////////////////////////////////////
//  Initialize Express and configure Middleware
///////////////////////////////////////////////////////////
const app = express()
app.set("port", process.env.PORT || 3000)

// Serve static files
app.use(express.static(path.join(__dirname, "public")))
app.use(favicon(path.resolve(__dirname, "public", "images", "favicon.ico")))

// Body parsing - parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false, }))

// Body parsing - parse json
app.use(bodyParser.json())

// Handle cross-site request
app.use(cors())

// Initialize Passport and enable persistent login sessions stored in mongodb
const sessionOptions = {
  secret: "cmccormack-nightlife-app",
  resave: false,
  saveUninitialized: true,
  cookie: { secure: false, },
  store: new MongoStore({ mongooseConnection: db, }),
}
app.use(session(sessionOptions))
app.use(passport.initialize())
app.use(passport.session())

require("./auth/init")(app, passport)
require("./auth/twitter")(app, passport)


///////////////////////////////////////////////////////////
//  Import Express Routes and call with Express app
///////////////////////////////////////////////////////////
require("./routes/routes.js")(app, passport)


///////////////////////////////////////////////////////////
//  Start Express Server
///////////////////////////////////////////////////////////
const server = app.listen(app.get("port"), () => {
  const {port, address, } = server.address()
  console.info(`Express server started on ${address}:${port}`)
})