server.ts

import 'zone.js/dist/zone-node';
    import 'reflect-metadata';
    import {enableProdMode} from '@angular/core';
    import {ngExpressEngine} from '@nguniversal/express-engine';
    import {provideModuleMap} from '@nguniversal/module-map-ngfactory-loader';
    
    import * as express from 'express';
    import * as bodyParser from 'body-parser';
    import * as cors from 'cors';
    import * as compression from 'compression';
    
    import {join} from 'path';
    
    enableProdMode();
    
    export const app = express();
    
    app.use(compression());
    app.use(cors());
    app.use(bodyParser.json());
    app.use(bodyParser.urlencoded({ extended: true }));
    
    // const DIST_FOLDER = join(process.cwd(), 'dist');
    
    const {AppServerModuleNgFactory, LAZY_MODULE_MAP} = require('./dist/server/main');
    
    app.engine('html', ngExpressEngine({
      bootstrap: AppServerModuleNgFactory,
      providers: [
        provideModuleMap(LAZY_MODULE_MAP)
      ]
    }));
    
    app.set('view engine', 'html');
    app.set('views', './dist/browser');
    
    app.get('/redirect/**', (req, res) => {
      const location = req.url.substring(10);
      res.redirect(301, location);
    });
    
    app.get('*.*', express.static('./dist/browser', {
      maxAge: '1y'
    }));
    
    app.get('/*', (req, res) => {
      res.render('index', {req, res}, (err, html) => {
        if (html) {
          res.send(html);
        } else {
          console.error(err);
          res.send(err);
        }
      });
    });