NSURLSession and stream upload in background

Question

I have some problems with using NSURLSession to upload photos from Asset Library to the server.

At first NSURLSession doesn\'t support stre

Answer 1

Right now, there is no way otherthan saving the picture to local file system or temp directory.

Following code make sure your data won't be lost with exif tags. (ALAsset => NSData)

ALAssetRepresentation *assetRepresentation = [(ALAsset *)assetBeingUploaded defaultRepresentation];
uint8_t *buffer = (uint8_t *)malloc(sizeof(uint8_t)*[assetRepresentation size]);
NSUInteger buffered = 0;
if (buffer != NULL)
buffered = [assetRepresentation getBytes:buffer fromOffset:0.0 length:assetRepresentation.size error:nil];
self.imageBeingUploaded = [NSData dataWithBytesNoCopy:buffer length:buffered freeWhenDone:YES];

The upload task in background session doesn't support completion handler. We should go for.,

- (NSURLSessionUploadTask *)uploadTaskWithRequest:(NSURLRequest *)request fromFile:(NSURL *)fileURL;  

I doubt how do we get the response headers or body in case if we are using background session & uploadtask with request using file?