server.js

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

const dev = process.env.NODE_ENV !== 'production'
const app = next({ dev })
const handle = app.getRequestHandler()
const url = require('url')
const path = require('path')
const expressApp = express()
const appDeepLink = require('./appDeepLink')
const PRERENDER_SERVICE_URL = 'http://localhost:3001'

const prerenderNode = require('prerender-node')
  .set('prerenderToken', 'OXuymwur28y7tZPGcg0x')
  .set('protocol', 'https').set('host', 'www.lifcare.in')
prerenderNode.crawlerUserAgents.push('googlebot')
prerenderNode.crawlerUserAgents.push('bingbot')
prerenderNode.crawlerUserAgents.push('yandex')

// require('prerender-node').set('prerenderServiceUrl', 'https://35.244.33.91/')

prepareNextApplication()

async function prepareNextApplication () {
  await app
    .prepare()
    .then(() => {
      const server = express()
      // server.use(
      //   require('prerender-node').set(
      //     'prerenderServiceUrl',
      //     PRERENDER_SERVICE_URL
      //   )
      // )
      server.use(prerenderNode)

      server.use(cookieParser())

      const options = {
        root: path.join(__dirname, '/static'),
        headers: {
          'Content-Type': 'text/plain;charset=UTF-8'
        }
      }

      server.get('/robots.txt', (req, res) =>
        res.status(200).sendFile('robots.txt', options)
      )
      // APNs site assicaitions
      server.get('/apple-app-site-association', function (req, res) {
        res.sendFile(appDeepLink.apnsAssociations, { root: __dirname })
      })

      // Android verified links
      server.get('/.well-known/assetlinks.json', function (req, res) {
        res.sendFile(appDeepLink.androidVerifiedAppLinks, { root: __dirname })
      })

      // molecule details page
      server.get('/product/molecule/:id', (req, res) => {
        const actualPage = '/molecule-details'
        const queryParams = { molecule_id: req.params.id }
        app.render(req, res, actualPage, queryParams)
      })

      // medicine list page
      server.get('/product/search', (req, res) => {
        const actualPage = '/medicine-list'
        const queryParams = {
          productName: req.query.slug,
          moleculeName: req.query['molecule-name']
        }
        app.render(req, res, actualPage, queryParams)
      })

      // product details page
      server.get('/product/:id', (req, res) => {
        const actualPage = '/product-details'
        const queryParams = {
          product_id: req.params.id,
          location: req.query.location
        }
        app.render(req, res, actualPage, queryParams)
      })

      // refill patients page
      server.get('/customer/:id/patient-refills', (req, res) => {
        const actualPage = '/refill-patients'
        const queryParams = { customer_id: req.params.id }

        if (!req.cookies.token) {
          res.redirect(
            url.format({
              pathname: '/',
              query: {
                authentication: false,
                path: req.originalUrl
              }
            })
          )
        } else {
          app.render(req, res, actualPage, queryParams)
        }
      })

      // patient list page
      server.get('/customer/:id/patients', (req, res) => {
        const actualPage = '/patient-details'
        const queryParams = { customer_id: req.params.id }

        if (!req.cookies.token) {
          res.redirect(
            url.format({
              pathname: '/',
              query: {
                authentication: false,
                path: req.originalUrl
              }
            })
          )
        } else {
          app.render(req, res, actualPage, queryParams)
        }
      })

      // shipping address list page
      server.get('/customer/:id/delivery-addresses', (req, res) => {
        const actualPage = '/delivery-details'
        const queryParams = { customer_id: req.params.id }

        if (!req.cookies.token) {
          res.redirect(
            url.format({
              pathname: '/',
              query: {
                authentication: false,
                path: req.originalUrl
              }
            })
          )
        } else {
          app.render(req, res, actualPage, queryParams)
        }
      })

      // order list page
      server.get('/customer/:id/orders', (req, res) => {
        const actualPage = '/order-list'
        const queryParams = { customer_id: req.params.id }

        if (!req.cookies.token) {
          res.redirect(
            url.format({
              pathname: '/',
              query: {
                authentication: false,
                path: req.originalUrl
              }
            })
          )
        } else {
          app.render(req, res, actualPage, queryParams)
        }
      })

      // prescription list page
      server.get('/customer/:id/prescriptions', (req, res) => {
        const actualPage = '/prescription-list'
        const queryParams = { customer_id: req.params.id }

        if (!req.cookies.token) {
          res.redirect(
            url.format({
              pathname: '/',
              query: {
                authentication: false,
                path: req.originalUrl
              }
            })
          )
        } else {
          app.render(req, res, actualPage, queryParams)
        }
      })

      // care points list page
      server.get('/customer/:id/care-points', (req, res) => {
        const actualPage = '/care-points'
        const queryParams = { customer_id: req.params.id }

        if (!req.cookies.token) {
          res.redirect(
            url.format({
              pathname: '/',
              query: {
                authentication: false,
                path: req.originalUrl
              }
            })
          )
        } else {
          app.render(req, res, actualPage, queryParams)
        }
      })

      // cart page
      server.get('/cart/:id', (req, res) => {
        const actualPage = '/cart-details'
        const queryParams = { id: req.params.id }
        app.render(req, res, actualPage, queryParams)
      })

      // thank you page
      server.get('/order/:id/order-confirmation', (req, res) => {
        const actualPage = '/order-confirmation'
        const queryParams = {
          id: req.params.id,
          paymentStatus: req.query['payment-status']
        }

        if (!req.cookies.token) {
          res.redirect(
            url.format({
              pathname: '/',
              query: {
                authentication: false,
                path: req.originalUrl
              }
            })
          )
        } else {
          app.render(req, res, actualPage, queryParams)
        }
      })

      // order details page
      server.get('/order/:id', (req, res) => {
        const actualPage = '/order-details'
        const queryParams = { id: req.params.id }
        app.render(req, res, actualPage, queryParams)
      })

      // privacy policy page
      server.get('/company/privacy', (req, res) => {
        const actualPage = '/privacy'
        app.render(req, res, actualPage)
      })

      // about us page
      server.get('/company/about', (req, res) => {
        const actualPage = '/about'
        app.render(req, res, actualPage)
      })

      // faq page
      server.get('/company/faq', (req, res) => {
        const actualPage = '/faq'
        app.render(req, res, actualPage)
      })

      // faq page
      server.get('/company/terms', (req, res) => {
        const actualPage = '/terms'
        app.render(req, res, actualPage)
      })

      // home page
      server.get('/', (req, res) => {
        const actualPage = '/'
        const queryParams = {
          authentication: req.query.authentication,
          path: req.query.path
        }
        app.render(req, res, actualPage, queryParams)
      })

      server.get('*', (req, res) => {
        return handle(req, res)
      })

      server.listen(3000, err => {
        if (err) throw err
        console.log('> Ready on http://localhost:3000')
      })
    })
    .catch(ex => {
      console.error(ex.stack)
      process.exit(1)
    })
}