async-web-server 0.8.0

async web server helpers
Documentation 
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<html>
<head>
    <script type="text/javascript">
        function http_send() {
            let input = document.getElementById("input");
            let button = document.getElementById("http_button");
            let output = document.getElementById("http_output");
            button.disabled = true;

            fetch('/echo', { method: 'POST', body: input.value })
                .then((response) => {
                    response.text().then((text) => {
                        console.log(text);
                        output.value = text;
                        button.disabled = false;
                    });
                });
        }
        function ws_connect() {
            let input = document.getElementById("input");
            let button = document.getElementById("ws_button");
            let output = document.getElementById("ws_output");
            button.disabled = true;

            let ws = new WebSocket("ws://"+window.location.host+"/echo");
            ws.onmessage = (event) => {
                console.log("message", event.data);
                output.value = event.data;
            }
            ws.onclose = ws.onerror = (event) => {
                console.log("closed", event);
                button.value = "connect";
                button.onclick = ws_connect;
                input.disabled = true;
            }
            ws.onopen = () => {
                console.log("ws opened");
                input.disabled = false;
                button.value="send via websocket";
                button.disabled = false;
                button.onclick = function() {
                    ws.send(input.value);
                }
            };
        }
    </script>
</head>
<body>
<h3>Message</h3>
<textarea id="input" cols="80" rows="3">hello</textarea>
<br>
<input type="button" id="http_button" value="send via http" onclick="http_send()">
<input type="button" id="ws_button" value="connect websocket" onclick="ws_connect()">
<h3>Last http response</h3>
<textarea id="http_output" cols="80" rows="3" disabled ></textarea>
<h3>Last websocket response</h3>
<textarea id="ws_output" cols="80" rows="3" disabled ></textarea>
</body>
</html>