# Override the Default Universe Domain

3.7.0-rc 3.6.0 (latest) 3.5.0 3.4.0 3.3.0 3.2.0 2.48.0-rc 2.47.1 2.46.0 2.45.0 2.44.0 2.43.0 2.42.0 2.41.0 2.40.0 2.39.0 2.38.0 2.37.0 2.36.0 2.35.0 2.34.0 2.33.0 2.32.0 2.31.0 2.30.0 2.29.0 2.28.0 2.27.0 2.26.0 2.25.1 2.24.0 2.23.0 2.22.1 2.21.0 2.20.0 2.19.0 2.18.0 2.17.0 2.16.0 2.15.1 2.14.0 2.13.0 2.12.0 2.11.0 In some cases, you may need to override the default universe domain used by the client library. Use `AddUniverseDomainOption` when initializing the client library to change this default.

      namespace gcs = ::google::cloud::storage;
      [](std::string const& bucket_name, std::string const& object_name) {
        google::cloud::Options options;

        // AddUniverseDomainOption interrogates the UnifiedCredentialsOption, if
        // set, in the provided Options for the Universe Domain associated with the
        // credentials and adds it to the set of Options.
        // If no UnifiedCredentialsOption is set, GoogleDefaultCredentials are used.
        auto ud_options =
            google::cloud::AddUniverseDomainOption(std::move(options));

        if (!ud_options.ok()) throw std::move(ud_options).status();
        auto client = gcs::Client(*ud_options);
        PerformSomeOperations(client, bucket_name, object_name);
      }