Actionscript 3 :: Pass Contents In The Byte Array To The HTTP.Send Method In Adobe Air

I upload a file using adobe air HTTPService.Send method by passing byte array of file content read using FileReference. When I write the set of bytes from the server side (php) it writes the details of the byte array (buff) to the file instead of contents of the file like "endian=bigEndian&position=0&bytesAvailable=61127&length=61127&objectEncoding=3" . Below I have included the code that how I read the file and send it to server. Is there anyway that i can directly pass the data in the byte array to send method?

File Read

var buff:ByteArray = new ByteArray();
var localFilePath:String = "/Videos/sample.txt";
var uploadedFile:File = new File(localFilePath);

[Code]....