server.js

// imports
require('dotenv').config();
const express = require('express')
const cors = require('cors')
const session = require('express-session')
const morgan = require('morgan')

const routes = require('./routes')
const passport = require('./passport')

const port = process.env.PORT || 4000
const app = express()

// middleware - server logging
app.use(morgan('dev'))

// middleware - JSON parsing
app.use(express.json())

// middleware - cors
const corsOptions = {
  // from which URLs do we want to accept requests
  origin: ['CLIENT_URL'],
  credentials: true, // allow the session cookie to be sent to and from the client
  optionsSuccessStatus: 204
}

app.use(cors(corsOptions))

// middleware - session config
app.use(session({
  // session is stored in the DB
  secret: process.env.SESSION_SECRET,
  resave: false, // will not resave sessions
  saveUninitialized: false, // only create a session when a property is added to the session
  cookie: {
    maxAge: 1000 * 60 * 60 * 24
  } 
}))

// middleware - passport config
app.use(passport.initialize())
app.use(passport.session())

// middleware - API routes
app.use('/api/v1/auth', routes.auth)
app.use('/api/v1/entry', routes.entry)
app.use('/api/v1/comment', routes.comment)
app.use('/api/v1/prompt', routes.prompt)

// connection
app.listen(port, () => console.log(`Server is running on port ${port}`))