Express.js - run server using HTTP2 (h2 or h2c)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
// Simaple steps:
//
//   1. Create project directory and paste `index.js` into.
//
//   2. Generate example localhost certificate using:
//      openssl.exe req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes -subj '/CN=localhost'
//
//      Source: https://dirask.com/posts/openssl-generate-localhost-pem-certificate-under-Windows-1enOWD
//
//   3. Paste generated key.pem and cert.pem files directly into project directory.
//
//   4. Install dependencies using:
//      npm install
//
//   5. Run application using:
//      node index.js
//
//   6. Open in the web browser the following address:
//      https://localhost:8443



// --------------------------------------------------
// index.js file:
// --------------------------------------------------

const fs = require('fs');
const path = require('path');
const http2 = require('http2');
const express = require('express');              // npm install express
const bridge = require('http2-express-bridge');  // npm install http2-express-bridge

const credentials = {
    key: fs.readFileSync(path.join(__dirname, 'key.pem'), 'utf8'),
    cert: fs.readFileSync(path.join(__dirname, 'cert.pem'), 'utf8'),
};

const app = bridge(express);

// ...

app.get('/', (request, response) => {
    response.send('Hello World!');
});

// ...

const server = http2.createSecureServer(credentials, app);

server.listen(8443, () => console.log('Server started on https://localhost:8443'));


// See also:
//
//     1. https://dirask.com/snippets/Express-js-run-server-using-HTTP2-h2-or-h2c-p5ddRD