ng add @nguniversal/express-engine

import 'zone.js/dist/zone-node';
import { ngExpressEngine } from '@nguniversal/express-engine';
import * as express from 'express';
import { join } from 'path';
import { APP_BASE_HREF } from '@angular/common';
import { existsSync } from 'fs';

import { AppServerModule } from './src/main.server';

// The Express app is exported so that it can be used by serverless Functions.
export function app(): express.Express {
  const server = express();
  const distFolder = join(process.cwd(), 'dist/your-project-name/browser');
  const indexHtml = existsSync(join(distFolder, 'index.original.html')) ? 'index.original.html' : 'index';

  server.engine('html', ngExpressEngine({
    bootstrap: AppServerModule,
  }));

  server.set('view engine', 'html');
  server.set('views', distFolder);

  // Example Express Rest API endpoints
  // server.get('/api/**', (req, res) => { });
  // Serve static files from /browser
  server.get('*.*', express.static(distFolder, {
    maxAge: '1y'
  }));

  server.get('*', (req, res) => {
    res.render(indexHtml, { req, providers: [{ provide: APP_BASE_HREF, useValue: req.baseUrl }] });
  });

  return server;
}

function run(): void {
  const port = process.env.PORT || 4000;

  const server = app();
  server.listen(port, () => {
    console.log(`Node Express server listening on http://localhost:${port}`);
  });
}

declare const __non_webpack_require__: NodeRequire;

if (require.main === module) {
  run();
}

export * from './src/main.server';

npm run build:ssr

npm run serve:ssr

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

@Component({
  selector: 'app-root',
  template: `
    <h1>Benvingut a Angular Universal!</h1>
    <p>Aquesta pàgina està renderitzada al servidor.</p>
  `,
  styles: []
})
export class AppComponent {}

import { Component, OnInit } from '@angular/core';
import { HttpClient } from '@angular/common/http';

@Component({
  selector: 'app-root',
  template: `
    <h1>Benvingut a Angular Universal!</h1>
    <p>Aquesta pàgina està renderitzada al servidor.</p>
    <ul>
      <li *ngFor="let item of items">{{ item.name }}</li>
    </ul>
  `,
  styles: []
})
export class AppComponent implements OnInit {
  items: any[] = [];

  constructor(private http: HttpClient) {}

  ngOnInit() {
    this.http.get<any[]>('https://api.example.com/items')
      .subscribe(data => {
        this.items = data;
      });
  }
}