A function to post an image onto ADN This does not work. Trying to figure out why

postImage

- (void)postImage{
    // Get a ADN Token

    NSString *access_token = @"foobar";
    NSURL *url = [NSURL URLWithString:@"https://alpha-api.app.net"];
    AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
    [httpClient setDefaultHeader:@"Authorization" value:[NSString stringWithFormat:@"Bearer %@", access_token]];
    NSData *imageData = UIImageJPEGRepresentation([UIImage imageNamed:@"bird.jpg"], 0.5);
    NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST"
                                                                         path:@"/stream/0/files"
                                                                   parameters:nil
                                                    constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
                                                        [formData appendPartWithFileData:imageData name:@"content" fileName:@"bird.jpg" mimeType:@"image/jpeg"];
                                                    }];
    

    
    AFJSONRequestOperation *operation =
    [AFJSONRequestOperation JSONRequestOperationWithRequest:request
     success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
         NSLog(@"Success :%@", JSON);
     } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
         NSLog(@"Failure: %@", error);
     }];
    
    [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
        NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
    }];
    
    
    [httpClient enqueueHTTPRequestOperation:operation];
    
}