chat-example/websockets.html at main · kuzminT/chat-example · GitHub

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<!doctype html>
<html lang="en">
<head></head>
<body>
<input id="input" required type="text" />
<button onclick="send()">Send</button>
<pre id="output">
    {{range .Messages}}
        <div>Server: {{.Text}}</div>
    {{end}}
</pre>
<script>
    const input = document.getElementById("input");
    const output = document.getElementById("output");
    const socket = new WebSocket("ws://localhost:{{.Port}}/messages");

    socket.onopen = function (e) {
        console.log(e)
        output.innerHTML = "<div><b>Status: Connected\n</b></div>" +  output.innerHTML;
    };

    socket.onmessage = function (e) {
        output.innerHTML += "<div>Server: " + e.data + "\n</div>";
    };

    function send() {
        socket.send(input.value);
        input.value = "";
    }
</script>
</body>
</html>