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How to implement websockets in Progress OpenEdge?

Discussão em 'StackOverflow' iniciado por fdantas, Janeiro 11, 2018.

  1. fdantas

    fdantas Administrator Moderador

    I'm trying to implement a websocket-server with Progress OpenEdge. I still didn't get it working.

    I've successfully created a socket-server with the example i-sktsv1.p from here.

    When I run my html-page, which looks like:

    <!DOCTYPE html>
    <html lang="en">
    <meta charset="utf-8" />
    <title>WebSocket Client</title>
    <script language="javascript" type="text/javascript">
    var wsUri = "ws://localhost:3333/";
    var output;

    function init() {
    output = document.getElementById("output");
    testWebSocket();
    }

    function testWebSocket() {
    websocket = new WebSocket(wsUri);
    websocket.onopen = function(evt) { onOpen(evt) };
    // websocket.onclose = function(evt) { onClose(evt) };
    websocket.onmessage = function(evt) { onMessage(evt) };
    websocket.onerror = function(evt) { onError(evt) };
    }

    function onOpen(evt) {
    writeToScreen("CONNECTED");
    doSend("WebSocket rocks");
    }

    function onClose(evt) {
    writeToScreen("DISCONNECTED");
    }

    function onMessage(evt) {
    writeToScreen('<span style="color: blue;">RESPONSE: ' + evt.data+'</span>');
    websocket.close();
    }

    function onError(evt) {
    writeToScreen('<span style="color: red;">ERROR:</span> ' + evt.data);
    }

    function doSend(message) {
    writeToScreen("SENT: " + message);
    websocket.send(message);
    }

    function writeToScreen(message) {
    var pre = document.createElement("p");
    pre.style.wordWrap = "break-word";
    pre.innerHTML = message;
    output.appendChild(pre);
    }

    window.addEventListener("load", init, false);
    </script>
    <body>
    <h2>WebSocket Test</h2>
    <div id="output"></div>
    </body>
    </html>


    I getting a error that the websocket connection could not be established.

    The problem is (I think) that Progress offers a socket, not a websocket. Do you know how to get this working?

    Continue reading...
    fdantas, Janeiro 11, 2018
    #1

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