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Showing content from https://cloud.google.com/cpp/docs/reference/datafusion/2.34.0 below:

C++ Client Libraries | Google Cloud

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An idiomatic C++ client library for the Cloud Data Fusion API, a fully-managed, cloud native, enterprise data integration service for quickly building and managing data pipelines.

While this library is GA, please note that the Google Cloud C++ client libraries do not follow Semantic Versioning.

The following shows the code that you'll run in the google/cloud/datafusion/quickstart/ directory, which should give you a taste of the Cloud Data Fusion API C++ client library API.

#include "google/cloud/datafusion/v1/data_fusion_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 datafusion = ::google::cloud::datafusion_v1;
  auto client =
      datafusion::DataFusionClient(datafusion::MakeDataFusionConnection());

  for (auto av : client.ListAvailableVersions(location.FullName())) {
    if (!av) throw std::move(av).status();
    std::cout << av->DebugString() << "\n";
  }

  return 0;
} catch (google::cloud::Status const& status) {
  std::cerr << "google::cloud::Status thrown: " << status << "\n";
  return 1;
}

The main class in this library is datafusion_v1::DataFusionClient. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock datafusion_v1::DataFusionClient when testing your application.

• Error Handling - describes how the library reports errors.
• How to Override the Default Endpoint - describes how to override the default endpoint.
• How to Override the Authentication Credentials - describes how to change the authentication credentials used by the library.
• Override Retry, Backoff, and Idempotency Policies - describes how to change the default retry policies.
• Environment Variables - describes environment variables that can configure the behavior of the library.

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 Cloud Data Fusion API C++ client library, which is a fully-managed, cloud-native service for data integration."],["The latest release candidate is version 2.37.0-rc, with multiple previous versions available for reference, down to 2.13.0."],["The primary class within this library is `datafusion_v1::DataFusionClient`, which contains the functionality for all available Remote Procedure Calls (RPCs)."],["The C++ client libraries do not adhere to Semantic Versioning, even though this library is Generally Available (GA)."],["The documentation includes instructions on error handling, overriding default endpoints and authentication credentials, managing retry policies, and using environment variables to configure library behavior."]]],[]]

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