IOS image UPLOAD (non blocking method)

Hi,
Can you tell me a complete example of an IOS image UPLOAD in a non blocking method?.
I have tried unsuccessfully to use the one in the SDK:
func backendless.file.upload(path: String, content: Data, overwrite: Bool, response: (BackendlessFile -> Void), error: (Fault -> Void)) -> Void
Greetings and many thanks in advance,

Hello Joan,
Please check this code:

func uploadImage() {
 let filePathName = "MyUplaodedImages/myUploadedImage.png"
 let image = UIImage(named: "myImage.png")
 let imageData = UIImagePNGRepresentation(image!)
 Backendless.sharedInstance().fileService.uploadFile(filePathName, content: imageData, overwriteIfExist: true, response: { uploadedImage in
 print("Image has been uplaoded: \(uploadedImage?.fileURL ?? "...")")
 }, error: { fault in
 print("Error: \(fault?.message ?? "uplaod failed")")
 })
 }

Result attached.

Regards, Olga

1.png

Correctly tested !!