queue: [NSOperationQueue mainQueue]
                       completionHandler: ^( NSURLResponse *response, NSData *data, NSError *error ) {
                           if(error)
                           {

                           }
                           else
                           {
                               NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
                                                                                    NSUserDomainMask, YES);

                               NSString *filePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:path];

                               [data writeToFile:filePath atomically:YES];

                           }
                       }];