Express server add ssl - node.js

Question

I followed the angular server-side rendering tutorial and created an express server.
How can I add SSL support?
I found how to add SSL in server.js but I don't know how to add it in Typescript.
server.ts
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';
enableProdMode();
const app = express();
const PORT = process.env.PORT || 4000;
const DIST_FOLDER = join(process.cwd(), 'dist');
const template = readFileSync(join(DIST_FOLDER, 'browser', 'index.html')).toString();
const { AppServerModuleNgFactory, LAZY_MODULE_MAP } = require('./dist/server/main.bundle');
const { provideModuleMap } = require('#nguniversal/module-map-ngfactory-loader');
app.engine('html', (_, options, callback) => {
renderModuleFactory(AppServerModuleNgFactory, {
document: template,
url: options.req.url,
extraProviders: [
provideModuleMap(LAZY_MODULE_MAP)
]
}).then(html => {
callback(null, html);
});
});
app.set('view engine', 'html');
app.set('views', join(DIST_FOLDER, 'browser'));
app.get('*.*', express.static(join(DIST_FOLDER, 'browser')));
app.get('*', (req, res) => {
res.render(join(DIST_FOLDER, 'browser', 'index.html'), { req });
});
app.listen(PORT, () => {
console.log(`Node server listening on http://localhost:${PORT}`);
});
——————
I used a Reverse Proxy instead

Answer 1

import the fs and https module
import { readFileSync } from 'fs';
import * as https from 'https';
Now create an object to set the key and certificate paths.
const options = {
key: readFileSync('./ssl/privatekey.pem'),
cert: readFileSync('./ssl/certificate.pem'),
};
https.createServer(options, app).listen(PORT , function(){
console.log("Express server listening on port " + PORT);
});