Save image from Flash using Node.js and Socket.io

I have been working on Node.js and Actionscript 3.0 for couple of day. I have searched everywhere for help to connect socket.io and flash. But i couldn't find anything decent. Most of them where outdated. Lets' check the requiremnts

1. Node.js
2. Socket.io 0.6
3. FlashSocket
4. FlexSdk
5. Flash IDE

Before starting i would like say something about version. Flashsocket din't work on latest socket.io and i couldn't work out any solution. And also FlashSocket need FlexSdk and also websocket . 

Node js 

First install socket.io in to the application directory .Note the version it's 0.9

npm install socket.io@0.9

The server code will be like this

     var app = require('http').createServer(handler)
       , io = require('socket.io').listen(app,{transports:['flashsocket', 'websocket', 'htmlfile', 'xhr-polling', 'jsonp-polling']})
       , fs = require('fs');
      var port = Number(81);
     app.listen(port);
     
     function handler (req, res) {
 
     }

     io.on('connection', function (socket) {
 
  socket.on("data",function(d){
       console.log('data from flash: ',d);
       socket.emit("data","hello");
  });
   socket.on("image",function(d){
        
      var obj=JSON.parse(d);
      fs.writeFile("./images/image.png", obj.image,'base64',function (err) {
        if (err) throw err;
        console.log('It\'s saved!');
        });
  });
  socket.on('disconnect', function (socket) {
      console.log("disconnect");
  });
     });

Flash 

First you need to add websocket.swc and flexsdk to the flash classpath. Add the folder of flexsdk/frameworks/libs to the class path

Now the Actionscript Coding part

import com.pnwrain.flashsocket.FlashSocket;
import com.pnwrain.flashsocket.events.FlashSocketEvent;
import flash.display.BitmapData;
import com.adobe.images.PNGEncoder;
import flash.utils.ByteArray;
import com.hurlant.util.Base64;


var socket:FlashSocket;
var bmd:BitmapData=new Tulips();
function init():void
{
 
 socket = new FlashSocket("localhost:81");
 socket.addEventListener(FlashSocketEvent.CONNECT, onConnect);
 socket.addEventListener(FlashSocketEvent.IO_ERROR, onError);
 socket.addEventListener(FlashSocketEvent.SECURITY_ERROR, onError);
 
}

function onConnect(event:FlashSocketEvent):void
{
 
 
 
 var pngEncoder:PNGEncoder = new PNGEncoder();
 var pngStream:ByteArray = PNGEncoder.encode(bmd);
 socket.send(Base64.encodeByteArray(pngStream),"image");
 
 
 
}
function onError(event:FlashSocketEvent):void
{
 setStatus("something went wrong");
}

init();

You need as3corelib for image converting and json parsing.

What was happening here is , flash will decode the bytearray into base64 encoded string and node will save it.

I don't know it's a good idea but it seems to work for me. If there is some other way please let me know also