server.js

const express = require('express')
const dotenv = require('dotenv') //for .env file
const connectDb = require('./db')
const exphbs = require('express-handlebars')
const session = require('express-session')
const path = require('path')
const methodOverride = require('method-override')
const bodyParser = require('body-parser');
const GitHubStrategy = require('passport-github').Strategy;

//load the .env file in config, which contains personal information for connections
dotenv.config({path: './config/.env'})

connectDb()

//passport config for github authentication
const passport = require('./config/passport');


const app = express()

//body parser for middleware to handle form data
app.use(express.urlencoded({extended:false}))
app.use(bodyParser.urlencoded({extended:true}))
app.use(express.json())

//method override for PUT and DELETE
app.use(methodOverride(function (req, res) {
    if (req.body && typeof req.body === 'object' && '_method' in req.body) {
        // look in urlencoded POST bodies and delete it
        let method = req.body._method
        delete req.body._method
        return method
    }
}))

//set handlebars and middleware
app.engine('handlebars', exphbs.engine({defaultLayout: 'main', extname:'handlebars'}))
app.set('view engine', 'handlebars')

//sessions middleware
app.use(session({
    secret: 'cs4241a3-billingsystems',
    resave: false,
    saveUninitialized: false,
    cookie: { //store in server, not browser
        httpOnly: true,
        secure: false, //use http, so false
        maxAge: 24*60*60*1000 //for one day
    }
}))

//set passport middleware
app.use(passport.initialize())
app.use(passport.session())

app.use(express.static(path.join(__dirname, 'public')))

//call the routes
app.use('/auth', require('./routes/auth'))
app.use('/', require('./routes/routes'))


app.listen( process.env.PORT || 3000 )