Intro-dev-web/ws.html at master · St-Michel-IT/Intro-dev-web · GitHub

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<!-- An empty page -->
<!DOCTYPE html>
<html>
<head>
    <title>WebSockets</title>
</head>
<body>
<h1>WebSockets</h1>
<h2>Tout est dans la console&nbsp;!</h2>
</body>

<script>
    let socket = new WebSocket("ws://localhost:8080/");

    socket.onopen = function (e) {
        console.log("[open] Connection established");
        console.log("Sending to server");
        socket.send("My name is John");
    };

    socket.onmessage = function (event) {
        console.log(`[message] Data received from server: ${event.data}`);
    };

    socket.onclose = function (event) {
        if (event.wasClean) {
            console.log(`[close] Connection closed cleanly, code=${event.code} reason=${event.reason}`);
        } else {
            // par exemple : processus serveur arrêté ou réseau en panne
            // event.code est généralement 1006 dans ce cas
            console.log(`[close] Connection died in event code: ${event.code}`);
        }
    };

    socket.onerror = function (error) {
        console.log(`[error] ${error.message}`);
    };
</script>
</html>