ObjectiveFlickr photo upload error

I am working on using the ObjectiveFlickr library to upload photos to Flickr from my iPhone app. I can authorize the application and perform general requests, but when I try to upload a photo, I get an error. The photo to be uploaded is an image captured using AVFoundation. Here's the relevant code:

UIImage *image = [[UIImage alloc] initWithData:imageData];
if ([[AppDelegate sharedDelegate].apiContext.OAuthToken length]) {
                    NSData *uploadData = UIImageJPEGRepresentation(image, 1);

                   if (!flickrRequest) {
                        flickrRequest = [[OFFlickrAPIRequest alloc] initWithAPIContext:[AppDelegate sharedDelegate].apiContext];
                        flickrRequest.delegate = self;
                        flickrRequest.requestTimeoutInterval = 60.0;

                    [flickrRequest uploadImageStream:[NSInputStream inputStreamWithData:uploadData] suggestedFilename:@"Test" MIMEType:@"image/jpeg" arguments:[NSDictionary dictionaryWithObjectsAndKeys:@"0", @"is_public", nil]];
                    [UIApplication sharedApplication].idleTimerDisabled = YES;

                    NSLog(@"Can upload photo");


The object is flickrRequest

defined and @property

'd' in the .h file related to the above code.

The methods OFFlickrRequestDelegate

look like this:

- (void)flickrAPIRequest:(OFFlickrAPIRequest *)inRequest imageUploadSentBytes:(NSUInteger)inSentBytes totalBytes:(NSUInteger)inTotalBytes {

- (void)flickrAPIRequest:(OFFlickrAPIRequest *)inRequest didCompleteWithResponse:(NSDictionary *)inResponseDictionary {
    NSLog(@"%s %@ %@", __PRETTY_FUNCTION__, inRequest.sessionInfo, inResponseDictionary);

- (void)flickrAPIRequest:(OFFlickrAPIRequest *)inRequest didFailWithError:(NSError *)inError {
    NSLog(@"%s %@ %@", __PRETTY_FUNCTION__, inRequest.sessionInfo, inError);
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[inError description] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [alert show];


When I run the project on the device, the console shows:

Can upload photo
flickrAPIRequest:didFailWithError:(null) Error Domain=org.lukhnos.ObjectiveFlickr Code=2147418115 "The operation couldnโ€šร„รดt be completed. (org.lukhnos.ObjectiveFlickr error 2147418115.)"


Search API documentation "error 2147418115

" is defined as " OFFlickrAPIRequestFaultyXMLResponseError

". I'm not really sure what that means. Also strange - "Success" appears four times when I only try to upload one photo.

A sample application using ObjectiveFlickr, "Snap and Run," uploads photos on the same device I'm testing on. Comparing the code between my app and Snap and Run, I don't see any major differences that could cause the photo to not upload.

Any help would be greatly appreciated.


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2 answers

This is strange. OFFlickrAPIRequestFaultyXMLResponseError

means the returned data cannot be parsed as XML. If the sample SnapAndRun app is working correctly and yours is not, I suggest adding one line to ObjectiveFlickr.m right after the line NSString *stat = [rsp objectForKey:@"stat"];


NSString *dataString = [[[NSString alloc] initWithData:[request receivedData] encoding:NSUTF8StringEncoding] autorelease];
NSLog(@"received response: %@", dataString);


This can help you figure out what went wrong (for example, if it is a server side issue or some response format that the library missed).



When I got this error, I used Charles to see what was going on. Flickr posted an error stating that the signature was invalid. Looking at my request, I found that I had changed the order of the key and value (i.e. there was a space in one of my keys, which probably caused a signature error).



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