NSURLConnection Call

gistfile1.m

if (_prevQuery != _currentPage + 1 && _currentPage + 1 <= _numberOfPages) {
        NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
        NSString* api_key = [[defaults objectForKey:@"user"]valueForKey:@"api_key"];
        NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@%@&per_page=15&page=%d", [[NSUserDefaults standardUserDefaults]objectForKey:@"baseUrl"],currentEndpoint, _currentPage + 1]];
        NSLog(@"%@", url);
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadRevalidatingCacheData timeoutInterval:30];
        [request setHTTPMethod:@"GET"];
        if (api_key) {
            [request setValue:api_key forHTTPHeaderField:@"authorization"];
        }
        _prevQuery = _currentPage + 1;
        [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError* error) {
            if (!error) {
                int statusCode = [(NSHTTPURLResponse *)response statusCode];
                if (statusCode == 200 || statusCode == 201) {
                    _currentPage = [[[(NSHTTPURLResponse *)response allHeaderFields]valueForKey:@"Current_page"]intValue];
                    _numberOfPages = [[[(NSHTTPURLResponse *)response allHeaderFields]valueForKey:@"Num_pages"]intValue];
                    NSLog(@"%d", _currentPage);
                    id jsonObject = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
                    if (allPublicTags) {
                        self.allPublicTags = [self.allPublicTags mutableCopy];
                        [self.allPublicTags addObjectsFromArray:jsonObject];
                    }
                    else {
                        [self setAllPublicTags:jsonObject];
                    }
                    [self.tableView reloadData];
                    [self.productGridView reloadData];
                }
            }
        }];
    }