iris/_examples/websocket/chat/websockets.html

<!-- the message's input -->
<input id="input" type="text" />

<!-- when clicked then an iris websocket event will be sent to the server, at this example we registered the 'chat' -->
<button onclick="send()">Send</button>

<!-- the messages will be shown here -->
<pre id="output"></pre>
<!-- import the iris client-side library for browser-->
<script src="/iris-ws.js"></script>

<script>
    var scheme = document.location.protocol == "https:" ? "wss" : "ws";
    var port = document.location.port ? (":" + document.location.port) : "";
    // see app.Get("/echo", ws.Handler()) on main.go
    var wsURL = scheme + "://" + document.location.hostname + port+"/echo";

    var input = document.getElementById("input");
    var output = document.getElementById("output");

    // Ws comes from the auto-served '/iris-ws.js'
    var socket = new Ws(wsURL)
    socket.OnConnect(function () {
        output.innerHTML += "Status: Connected\n";
    });

    socket.OnDisconnect(function () {
        output.innerHTML += "Status: Disconnected\n";
    });

    // read events from the server
    socket.On("chat", function (msg) {
        addMessage(msg);
    });

    function send() {
        addMessage("Me: " + input.value); // write ourselves
        socket.Emit("chat", input.value);// send chat event data to the websocket server
        input.value = ""; // clear the input
    }

    function addMessage(msg) {
        output.innerHTML += msg + "\n";
    }
</script>