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Showing content from https://cloud.google.com/cpp/docs/reference/servicecontrol/2.12.0 below:

C++ Client Libraries | Google Cloud

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Service Control API C++ Client Library

An idiomatic C++ client library for the Service Control API. This service provides admission control and telemetry reporting for services integrated with Service Infrastructure.

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

Quickstart

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

#include "google/cloud/servicecontrol/v1/service_controller_client.h"
#include "google/cloud/project.h"
#include <google/protobuf/util/time_util.h>
#include <iostream>

int main(int argc, char* argv[]) try {
  if (argc != 2) {
    std::cerr << "Usage: " << argv[0] << " project-id\n";
    return 1;
  }

  namespace servicecontrol = ::google::cloud::servicecontrol_v1;
  auto client = servicecontrol::ServiceControllerClient(
      servicecontrol::MakeServiceControllerConnection());

  auto const project = google::cloud::Project(argv[1]);
  google::api::servicecontrol::v1::CheckRequest request;
  request.set_service_name("pubsub.googleapis.com");
  *request.mutable_operation() = [&] {
    using ::google::protobuf::util::TimeUtil;

    google::api::servicecontrol::v1::Operation op;
    op.set_operation_id("TODO-use-UUID-4-or-UUID-5");
    op.set_operation_name("google.pubsub.v1.Publisher.Publish");
    op.set_consumer_id(project.FullName());
    *op.mutable_start_time() = (TimeUtil::GetCurrentTime)();
    return op;
  }();

  auto response = client.Check(request);
  if (!response) throw std::move(response).status();
  std::cout << response->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 gRPC service as member functions of the class. This library groups multiple gRPC 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.

Retry, Backoff, and Idempotency Policies.

The library automatically retries requests that fail with transient errors, and uses exponential backoff to backoff between retries. Application developers can override the default policies.

More Information

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 details the C++ client library for the Google Cloud Service Control API, which facilitates admission control and telemetry reporting for services integrated with Service Infrastructure."],["The latest release candidate is version 2.37.0-rc, with multiple previous versions available, up to 2.11.0, and it's important to note that this library does not follow Semantic Versioning."],["The library offers several `*Client` classes, such as `QuotaControllerClient`, `ServiceControllerClient` (both v1 and v2), which expose gRPC service RPCs as member functions."],["The library includes automatic retry logic for transient errors using exponential backoff, with options to override default retry, authentication and endpoint behavior."],["The Service Control API C++ client library includes a Quickstart section, which provides a code example demonstrating the client library's basic API usage."]]],[]]


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