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An idiomatic C++ client library for the Google Cloud Data Catalog API, a fully managed and highly scalable data discovery and metadata management service.
While this library is GA, please note Google Cloud C++ client libraries do not follow Semantic Versioning.
QuickstartThe following shows the code that you'll run in the google/cloud/datacatalog/quickstart/
directory, which should give you a taste of the Google Cloud Data Catalog API C++ client library API.
#include "google/cloud/datacatalog/v1/data_catalog_client.h"
#include "google/cloud/location.h"
#include <iostream>
int main(int argc, char* argv[]) try {
if (argc != 3) {
std::cerr << "Usage: " << argv[0] << " project-id location-id\n";
return 1;
}
auto const location = google::cloud::Location(argv[1], argv[2]);
namespace datacatalog = ::google::cloud::datacatalog_v1;
auto client =
datacatalog::DataCatalogClient(datacatalog::MakeDataCatalogConnection());
for (auto eg : client.ListEntryGroups(location.FullName())) {
if (!eg) throw std::move(eg).status();
std::cout << eg->DebugString() << "\n";
}
return 0;
} catch (google::cloud::Status const& status) {
std::cerr << "google::cloud::Status thrown: " << status << "\n";
return 1;
}
Main classes
This library offers multiple *Client
classes, which are listed below. Each one of these classes exposes all the RPCs for a service as member functions of the class. This library groups multiple services because they are part of the same product or are often used together. A typical example may be the administrative and data plane operations for a single product.
The library also has other classes that provide helpers, configuration parameters, and infrastructure to mock the *Client
classes when testing your application.
datacatalog_lineage_v1::LineageClient
datacatalog_v1::DataCatalogClient
datacatalog_v1::PolicyTagManagerClient
datacatalog_v1::PolicyTagManagerSerializationClient
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-08-14 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["This webpage provides documentation for the Google Cloud Data Catalog API C++ client library, a fully managed service for data discovery and metadata management."],["The library is currently in General Availability (GA), but it does not adhere to Semantic Versioning, which is important to note for version management."],["The latest version available, as a release candidate, is 2.37.0-rc, while a comprehensive list of previous versions from 2.36.0 down to 2.11.0 are also accessible."],["The documentation includes a quickstart guide with code examples and main classes such as `DataCatalogClient`, `LineageClient`, `PolicyTagManagerClient`, and `PolicyTagManagerSerializationClient`."],["Additional information is available on the topics of error handling, how to override the default endpoint and authentication credentials, overriding retry policies, and relevant environment variables."]]],[]]
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