ferreto

It works: ``` fileUploader.uploadFile(request: request)! .progress { bytesWritten, totalBytesWritten, totalBytesExpectedToWrite in print(totalBytesWritten) dispatch_async(dispatch_get_main_queue()) { print("Total bytes written on main queue: \(totalBytesWritten)") } } .responseJSON { response in debugPrint(response) } ```