D-Net

import 'zone.js/dist/zone-node';

import 'reflect-metadata';

import { renderModuleFactory } from '@angular/platform-server';

import { enableProdMode } from '@angular/core';

import * as express from 'express';

import { join } from 'path';

import { readFileSync } from 'fs';

// Faster server renders w/ Prod mode (dev mode never needed)

enableProdMode();

// Express server

const app = express();

const PORT = process.env.PORT || 4000;

const DIST_FOLDER = join(process.cwd(), 'dist');

// Our index.html we'll use as our template

const template = readFileSync(join(DIST_FOLDER, 'browser', 'index.html')).toString();

// * NOTE :: leave this as require() since this file is built Dynamically from webpack

const { AppServerModuleNgFactory, LAZY_MODULE_MAP } = require('./dist/server/main');

// Express Engine

import {ngExpressEngine, RenderOptions} from '@nguniversal/express-engine';

// Import module map for lazy loading

import { provideModuleMap } from '@nguniversal/module-map-ngfactory-loader';

import {REQUEST, RESPONSE} from "@nguniversal/express-engine/tokens";

// Our Universal express-engine (found @ https://github.com/angular/universal/tree/master/modules/express-engine)

// app.engine('html', ngExpressEngine({

//   bootstrap: AppServerModuleNgFactory,

//   providers: [

//      { provide: 'request', useFactory: () => options.req, deps: [] },

//     provideModuleMap(LAZY_MODULE_MAP)

//   ]

// }));

// be able to get request and get domain from there

app.engine('html', (_, options: any, callback) => {

  const opts = {

    document: template,

    url: options.req.url,

    extraProviders: [

      provideModuleMap(LAZY_MODULE_MAP),

      {

        provide: REQUEST,

        useValue: options.req

      },

      {

        provide: RESPONSE,

        useValue: options.req.res,

      },

    ]

  };

  renderModuleFactory(AppServerModuleNgFactory, opts)

    .then(html => callback(null, html)

    );

});

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

app.set('views', join(DIST_FOLDER, 'browser'));

/* - Example Express Rest API endpoints -

  app.get('/api/**', (req, res) => { });

*/

// Server static files from /browser

app.get('*.*', express.static(join(DIST_FOLDER, 'browser'), {

  maxAge: '1y'

}));

// ALl regular routes use the Universal engine

app.get('*', (req, res) => {

  res.render('index', { req });

});

// Start up the Node server

app.listen(PORT, () => {

  console.log(`Node Express server listening on http://localhost:${PORT}`);

});