upload image from UIPicker

upload.swift

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
        
        // do something with selectedImage and originalImage
        let timage = UIImageJPEGRepresentation(image, 1.0);
     
        if image != nil {
            //UIImageJPEGRepresentation(selectedImage, <#compressionQuality: CGFloat#>)
            upload(.POST, "http://api.localhost/image", timage)
                .progress { (bytesWritten, totalBytesWritten, totalBytesExpectedToWrite) in
                    
                    var fp : Float
                    
                    if totalBytesWritten > 0 {
                        fp = Float(totalBytesWritten) / Float(totalBytesExpectedToWrite);
                        
                        dispatch_async(dispatch_get_main_queue()) {
                            self.progressView.setProgress(fp, animated: true)
                        }
                    }
                }
                .responseString { (request, response, jeson, error) in
                    println(jeson)
                    println(response)
            }
            
        }
     
        
        
        picker.dismissViewControllerAnimated(true, completion:nil)
}