title: Multipart Request and Custom Header
body: <p>For my current solution, I'm using apache commons FileUpload library to process incoming multi-part requests. I'm able to send the files appropriately then read the stream on the server end using the streaming api code <a href="http://commons.apache.org/proper/commons-fileupload/streaming.html" rel="nofollow noreferrer">here</a>.</p>
  
  <p>If you look at the format of multipart requests listed <a href="https://stackoverflow.com/questions/913626/what-should-a-multipart-http-request-with-multiple-files-look-like">here</a>, there is a Content-Disposition listed for each file added. I need to add a <em>startByte</em> tag (similar to how you add a "filename" tag in content-disposition). I'm not too sure how to do that properly and then retrieve it in the request? This is of course not a global header, because multiple files are in this stream.</p>
  
  <p>Anyone have any ideas?</p>