server.js

'use strict';

require('zone.js/dist/zone-node');
require('reflect-metadata');

const express = require('express'); // npm install --save express
const ngUniversal = require('@nguniversal/express-engine'); // npm install --save @nguniversal/express-engine
const { provideModuleMap } = require('@nguniversal/module-map-ngfactory-loader'); // npm install --save @nguniversal/module-map-ngfactory-loader

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

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

const app = express();

app.engine('html', ngUniversal.ngExpressEngine({
    bootstrap: AppServerModuleNgFactory,
    providers: [
        provideModuleMap(LAZY_MODULE_MAP)
    ]
}));
app.set('view engine', 'html');
app.set('views', 'dist');

app.get('/', angularRouter);

app.use(express.static(`${ __dirname }`))

app.get('*', angularRouter);

app.listen(3000, () => {
    console.log('Listening on port 3000');
});

// https://github.com/angular/angular-cli/wiki/stories-universal-rendering