app.js

const express = require('express')
const cookieParser = require('cookie-parser')

const app = express()

app.use(express.urlencoded({ extended: false }))
app.use(cookieParser())

app.use('/static', express.static('public'))
app.set('view engine', 'pug')

const mainRoutes = require('./routes/index')
const cardRoutes = require('./routes/cards')

app.use(mainRoutes)
app.use('/cards', cardRoutes)

// app.use((req, res, next) => {
//   const err = new Error('Oh no')
//   err.status = 500
//   next(err)
// })

app.use((req, res, next) => {
  console.log(req.message)
  next()
})

app.use((req, res, next) => {
  const err = new Error('Not Found')
  err.status = 404
  next(err)
})

app.use((err, req, res, next) => {
  res.locals.error = err
  res.status(err.status)
  res.render('error')
})

app.listen(3000, () => console.log('The app is running on port 3000'))