compulim · December 21, 2018 07:49
diff --git a/index.js b/index.js
 const http2 = require('http2');

 function main() {
  const server = http2.createSecureServer({
    cert: CERTIFICATE,
    key: PRIVATE_KEY
  });

  server.on('error', err => console.error(err));

  server.on('stream', (stream, headers) => {
    const path = headers[':path'];

    if (path === '/') {
      stream.respond({
        'content-type': 'text/html',
        ':status': 200
      });

      stream.end(HTML);
    } else if (path === '/api/eventstream') {
      stream.respond({
        'content-type': 'text/event-stream',
        'cache-control': 'no-transform'
      });

      const interval = setInterval(() => {
        const now = Date.now();

        stream.write(`id: ${ now }\ndata: ${ new Date(now).toString() }\n\n`);
      }, 1000);

      stream.on('error', () => {
        clearInterval(interval);
      });
    } else {
      stream.respond({ ':status': 404 });
      stream.end();
    }
  });

  const { PORT = 5443 } = process.env;

  server.listen(PORT, () => {
    console.log(`Web server started on port ${ PORT }`);
  });
 }

 // To generate the certificate, run, and copy-and-paste the content below
 // openssl req -x509 -newkey rsa:2048 -nodes -sha256 -subj '/CN=localhost:5443' -keyout localhost-privkey.pem -out localhost-cert.pem

 const CERTIFICATE = `-----BEGIN CERTIFICATE-----
 MII...
 -----END CERTIFICATE-----`;

 const PRIVATE_KEY = `-----BEGIN PRIVATE KEY-----
 MII...
 -----END PRIVATE KEY-----`;

 const HTML = `<!DOCTYPE html>
 <html>
  <head>
    <title>Server-Sent Events demo</title>
    <style type="text/css">
      pre {
        background-color: #EEE;
        border-radius: 5px;
        padding: 5px;
      }
    </style>
  </head>
  <body>
    <h1>Server-Sent Events demo</h1>
    <script>
      const eventSource = new EventSource('/api/eventstream');

      eventSource.addEventListener('message', ({ data }) => {
        const pre = document.createElement('pre');

        pre.innerHTML = data;
        document.body.appendChild(pre);
      });
    </script>
  </body>
 </html>`;

 main();
	const http2 = require('http2');

	function main() {
	const server = http2.createSecureServer({
	cert: CERTIFICATE,
	key: PRIVATE_KEY
	});

	server.on('error', err => console.error(err));

	server.on('stream', (stream, headers) => {
	const path = headers[':path'];

	if (path === '/') {
	stream.respond({
	'content-type': 'text/html',
	':status': 200
	});

	stream.end(HTML);
	} else if (path === '/api/eventstream') {
	stream.respond({
	'content-type': 'text/event-stream',
	'cache-control': 'no-transform'
	});

	const interval = setInterval(() => {
	const now = Date.now();

	stream.write(`id: ${ now }\ndata: ${ new Date(now).toString() }\n\n`);
	}, 1000);

	stream.on('error', () => {
	clearInterval(interval);
	});
	} else {
	stream.respond({ ':status': 404 });
	stream.end();
	}
	});

	const { PORT = 5443 } = process.env;

	server.listen(PORT, () => {
	console.log(`Web server started on port ${ PORT }`);
	});
	}

	// To generate the certificate, run, and copy-and-paste the content below
	// openssl req -x509 -newkey rsa:2048 -nodes -sha256 -subj '/CN=localhost:5443' -keyout localhost-privkey.pem -out localhost-cert.pem

	const CERTIFICATE = `-----BEGIN CERTIFICATE-----
	MII...
	-----END CERTIFICATE-----`;

	const PRIVATE_KEY = `-----BEGIN PRIVATE KEY-----
	MII...
	-----END PRIVATE KEY-----`;

	const HTML = `<!DOCTYPE html>
	<html>
	<head>
	<title>Server-Sent Events demo</title>
	<style type="text/css">
	pre {
	background-color: #EEE;
	border-radius: 5px;
	padding: 5px;
	}
	</style>
	</head>
	<body>
	<h1>Server-Sent Events demo</h1>
	<script>
	const eventSource = new EventSource('/api/eventstream');

	eventSource.addEventListener('message', ({ data }) => {
	const pre = document.createElement('pre');

	pre.innerHTML = data;
	document.body.appendChild(pre);
	});
	</script>
	</body>
	</html>`;

	main();