class GraphQLHttpService {

  @VisibleForTesting
  public String url() {
    if (httpServer == null) {
      return "";
    }
    return NetworkUtility.urlForSocketAddress("http", socketAddress());
  }

  public  GraphQLHttpService(
      final Vertx vertx,
      final Path dataDir,
      final GraphQLConfiguration config,
      final GraphQL graphQL,
      final GraphQLDataFetcherContextImpl dataFetcherContext,
      final EthScheduler scheduler);

}