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Node.Js And Stuff

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4.97/5 (55 votes)
11 Feb 2013CPOL23 min read 357.1K   2.3K   172  
Small demo app using Node.Js/Socket.IO/MongoDB/D3.Js and jQuery.
<!--
  Lincense: Public Domain
-->

<html><head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>Sample of web_socket.js</title>
  
  <!-- Include these three JS files: -->
  <script type="text/javascript" src="swfobject.js"></script>
  <script type="text/javascript" src="web_socket.js"></script>

  <script type="text/javascript">
    
    // Set URL of your WebSocketMain.swf here:
    WEB_SOCKET_SWF_LOCATION = "WebSocketMain.swf";
    // Set this to dump debug message from Flash to console.log:
    WEB_SOCKET_DEBUG = true;
    
    // Everything below is the same as using standard WebSocket.
    
    var ws;
    
    function init() {

      // Connect to Web Socket.
      // Change host/port here to your own Web Socket server.
      ws = new WebSocket("ws://localhost:10081/");

      // Set event handlers.
      ws.onopen = function() {
        output("onopen");
      };
      ws.onmessage = function(e) {
        // e.data contains received string.
        output("onmessage: " + e.data);
      };
      ws.onclose = function() {
        output("onclose");
      };
      ws.onerror = function() {
        output("onerror");
      };

    }
    
    function onSubmit() {
      var input = document.getElementById("input");
      // You can send message to the Web Socket using ws.send.
      ws.send(input.value);
      output("send: " + input.value);
      input.value = "";
      input.focus();
    }
    
    function onCloseClick() {
      ws.close();
    }
    
    function output(str) {
      var log = document.getElementById("log");
      var escaped = str.replace(/&/, "&amp;").replace(/</, "&lt;").
        replace(/>/, "&gt;").replace(/"/, "&quot;"); // "
      log.innerHTML = escaped + "<br>" + log.innerHTML;
    }

  </script>
</head><body onload="init();">
  <form onsubmit="onSubmit(); return false;">
    <input type="text" id="input">
    <input type="submit" value="Send">
    <button onclick="onCloseClick(); return false;">close</button>
  </form>
  <div id="log"></div>
</body></html>

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior)
United Kingdom United Kingdom
I currently hold the following qualifications (amongst others, I also studied Music Technology and Electronics, for my sins)

- MSc (Passed with distinctions), in Information Technology for E-Commerce
- BSc Hons (1st class) in Computer Science & Artificial Intelligence

Both of these at Sussex University UK.

Award(s)

I am lucky enough to have won a few awards for Zany Crazy code articles over the years

  • Microsoft C# MVP 2016
  • Codeproject MVP 2016
  • Microsoft C# MVP 2015
  • Codeproject MVP 2015
  • Microsoft C# MVP 2014
  • Codeproject MVP 2014
  • Microsoft C# MVP 2013
  • Codeproject MVP 2013
  • Microsoft C# MVP 2012
  • Codeproject MVP 2012
  • Microsoft C# MVP 2011
  • Codeproject MVP 2011
  • Microsoft C# MVP 2010
  • Codeproject MVP 2010
  • Microsoft C# MVP 2009
  • Codeproject MVP 2009
  • Microsoft C# MVP 2008
  • Codeproject MVP 2008
  • And numerous codeproject awards which you can see over at my blog

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