WebSocket Echo Test

by humanzing

HTML

<html>
    <head>
        <title>WebSocket Echo Test</title>
        <script>
            function init() { 
            websocket = new WebSocket("ws://localhost:7331/");
            
            websocket.onopen = function() { document.getElementById("output").innerHTML += "<p>> CONNECTED</p>"; };
            
            websocket.onmessage = function(evt) { document.getElementById("output").innerHTML += "<p style='color: blue;'>> RESPONSE: " + evt.data + "</p>"; };
            
            websocket.onerror = function(evt) { document.getElementById("output").innerHTML += "<p style='color: red;'>> ERROR: " + evt.data + "</p>"; };
            }
            
            function sendMessage(message) {
            document.getElementById("output").innerHTML += "<p>> SENT: " + message + "</p>";
            
            websocket.send(message);
            }
            
            window.addEventListener("load", init, false);
        </script>
    </head>
    <body>
        <input onkeypress="if(this.value) {if (window.event.keyCode == 13) { sendMessage(this.value); this.value = null; }}"/>
        <div id="output"></div>
    </body>
</html>