GDS Demo complete app.js

app.js

const path = require('path')
const nunjucks = require('nunjucks')
const express = require('express')
const app = express()
const port = 3004

nunjucks.configure([
  path.join(__dirname, 'node_modules/govuk-frontend/'),
  path.join(__dirname, 'app/views/')
], {
  autoescape: true,
  express: app,
  noCache: true,
  watch: true
})

app.set('view engine', 'html')

app.use(express.static(path.join(__dirname, 'public')))
app.use('/assets', express.static(path.join(__dirname, '/node_modules/govuk-frontend/govuk/assets')))
app.use('/govuk-frontend', express.static(path.join(__dirname, '/node_modules/govuk-frontend/govuk')))

app.get('/', (req, res) => {
  return res.render('layout')
})

// Run the application
app.listen(port, () => {
  console.log(`App running on => http://localhost:${port}`)
}).on(('error'), (err) => {
  if (err.errno === 'EADDRINUSE') {
    console.log(`----- Port ${port} is busy. Please use another port.`)
  } else {
    console.log(err)
  }
})