Action Scrip3 Bitmap to ByteArray to .Net C#

Previously, I posted on how I cropped and re-sized an image in Flex. Now, I will take you through some code snippets that I used to send the data over to .NET.

Flex:

I sent data to .NET using a UrlRequestLoader, again re-used code from some great person on the 'net.

public function saveFile(imageData:BitmapData):void{

  // method accepts raw JPEG data as ByteArray as input
  // create a URLRequest object pointed at the URL of the remote upload script
  var request:URLRequest = new   URLRequest(_uploadHandler+"?iKey="+_userId.toString());

  // the call we will make is a standard HTTP POST call
  request.method = "POST";

  // this enables us to send binary data for the body of the HTTP POST call
  request.contentType = "application/octet-stream";
  var urlLoader:URLLoader = new URLLoader();
  urlLoader.addEventListener(Event.COMPLETE,uploadPhotoHandler);

  // the loader is the data being sent along to the server. Its dataFormat   property lets us specify the format for the body, which, in our case,   will be BINARY data
  urlLoader.dataFormat = URLLoaderDataFormat.BINARY;

  // the data property of our URLRequest object is the actual data being   sent to the server, which in this case is the photo JPEG data
  var myEncoder:JPEGEncoder = new JPEGEncoder(100);
  var byteArray:ByteArray = myEncoder.encode(imageData);

  request.data = byteArray;
  urlLoader.load(request);

}

On the .NET side I had a handler setup to process this call. This part was easy to implement but took some digging to figure out all the right pieces.

It boiled down to getting the data out of the request using the BinaryReader. (actually I never knew that there was on attached to a Request). Then I used the File class to write out the image data.

.NET:
public void ProcessRequest(HttpContext context)
{

  if (context.Request.TotalBytes > 0)
    {

      int userId =       Convert.ToInt32(context.Request["iKey"]);
      byte[] data =       context.Request.BinaryRead(context.Request.TotalBytes);

      string basePath =ConfigurationManager.AppSettings["Path"];

      string uploadPath = context.Server.MapPath(basePath);

      if (!System.IO.Directory.Exists(uploadPath))
        System.IO.Directory.CreateDirectory(uploadPath);

      if(data!=null)
        {
        string fileName = uploadPath + "xxx.jpg"));
        File.WriteAllBytes(fileName, data);
        }
  }
}