dirkk0/main.js

## main.js

// starter was this very helpful post from @lpinca
// https://github.com/websockets/ws/issues/2052#issuecomment-1142529734

// installation: npm install ws

const WebSocketServer = require("ws");
const http = require('http');

const PORT = process.env.PORT || 8084;

const data = `<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
  </head>
  <body>
    <script>
      (function () {
        var ws = new WebSocket('ws://localhost:8084');

        ws.onopen = function () {
          console.log('open');
          setInterval(() => {
            ws.send('message from client');
          }, 2000)
        };

        ws.onmessage = function (msg) {
            console.log('client received', msg.data);
          };
      })();
    </script>
  </body>
</html>`;

const server = http.createServer((req, res) => {
    if (req.method === 'GET') {
        res.setHeader('Content-Type', 'text/html');
        res.end(data);
    }
})

const wss = new WebSocketServer.Server({ server });

wss.on('connection', function (ws) {
    console.log('connected');

    ws.on('error', console.error);

    ws.on('message', function message(data) {
        console.log('server received: %s', data);
    });

    setInterval(() => {
        ws.send('message from server');
    }, 1000);
});

server.listen(PORT, () => {
    console.log(`Server is running on port ${PORT}`);
});

	// starter was this very helpful post from @lpinca
	// https://github.com/websockets/ws/issues/2052#issuecomment-1142529734

	// installation: npm install ws

	const WebSocketServer = require("ws");
	const http = require('http');

	const PORT = process.env.PORT \|\| 8084;

	const data = `<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	</head>
	<body>
	<script>
	(function () {
	var ws = new WebSocket('ws://localhost:8084');

	ws.onopen = function () {
	console.log('open');
	setInterval(() => {
	ws.send('message from client');
	}, 2000)
	};

	ws.onmessage = function (msg) {
	console.log('client received', msg.data);
	};
	})();
	</script>
	</body>
	</html>`;

	const server = http.createServer((req, res) => {
	if (req.method === 'GET') {
	res.setHeader('Content-Type', 'text/html');
	res.end(data);
	}
	})

	const wss = new WebSocketServer.Server({ server });

	wss.on('connection', function (ws) {
	console.log('connected');

	ws.on('error', console.error);

	ws.on('message', function message(data) {
	console.log('server received: %s', data);
	});

	setInterval(() => {
	ws.send('message from server');
	}, 1000);
	});

	server.listen(PORT, () => {
	console.log(`Server is running on port ${PORT}`);
	});