Things In Code: URL parameter concatenation2

prepareUrl.m

- (NSString *)prepareUrl {
    NSMutableArray *queryComponents = [NSMutableArray new];

    if (query != nil) {
        [queryComponents addObject:[NSString stringWithFormat:@"query=%@", query]];
    }
    if (orderBy != nil) {
        [queryComponents addObject:[NSString stringWithFormat:@"orderBy=%@", orderBy]];
    }
    if (sortOrder != nil) {
        [queryComponents addObject:[NSString stringWithFormat:@"sortOrder=%@", sortOrder]];
    }
    // .. and so on
    
    NSString *parameters = [queryComponents componentsJoinedByString:@"&"];
    return [NSString stringWithFormat:@"https://example.com?%@", parameters];
}