TURTED_reactphp/index.html at master · TURTED/TURTED_reactphp · GitHub

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        <h1>Hi</h1>
        <button onclick="post()">Post</button>
        <div id="load"></div>
        <div id="eventList"></div>

        <script type="text/javascript">

            var events = [];
            var evtSource;
            var retries = 0;

            var eventList = document.getElementById('eventList');

            function add(data) {
                const newElement = document.createElement('li');
                const json = JSON.parse(data);
                events.push(json);
                if (events.length > 5) {
                    events.shift();
                }
                render();
                document.getElementById('load').innerText = JSON.stringify(json.load);
            }

            function connect() {
                console.log('New connect');
                evtSource = new EventSource('/sse/stream');
                evtSource.addEventListener('ping', function(event) {
                    add(event.data);
                });
                evtSource.addEventListener('open', function(event) {
                    console.log('Verbunden');
                    retries = 0;
                });
                // evtSource.addEventListener('error', function(err) {
                //     console.error(err);
                //     evtSource.close();
                //     reconnect();
                // });
            }

            function reconnect() {
                console.log('Retries', retries);
                retries++;
                let timeout = Math.pow(2, retries);
                timeout = timeout > 16 ? 16 : timeout;
                console.log(timeout);
                setTimeout(connect, timeout * 1000);
            }

            function post() {
                fetch('/sse/push', {
                    'method': 'post',
                    'body': JSON.stringify({
                        'msg': 'Lalala',
                    }),
                }).then((data) => {
                    // console.log(data);
                });
            }

            function render() {
                eventList.innerText = '';
                events.forEach((e) => {
                    var li = document.createElement('li');
                    li.innerHTML = 'ping at ' + e.time;
                    eventList.appendChild(li);
                });
            }

            connect();
        </script>
    </body>
</html>