An idiomatic C++ client library for theCloud Quotas API, a service to Cloud Quotas API provides GCP service consumers with management and observability for resource usage, quotas, and restrictions of the services they consume.
While this library isGA, please note that the Google Cloud C++ client libraries donotfollowSemantic Versioning.
Quickstart
The following shows the code that you'll run in thegoogle/cloud/cloudquotas/quickstart/directory, which should give you a taste of the Cloud Quotas API C++ client library API.
The main class in this library iscloudquotas_v1::CloudQuotasClient. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mockcloudquotas_v1::CloudQuotasClientwhen testing your application.
More Information
Error Handling- describes how the library reports errors.
[[["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 2025-09-04 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the Cloud Quotas API C++ client library, which enables GCP service consumers to manage and observe their resource usage, quotas, and service restrictions.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version is 2.37.0-rc, and the content shows the different releases, going back to version 2.20.0.\u003c/p\u003e\n"],["\u003cp\u003eThe main class of the library is \u003ccode\u003ecloudquotas_v1::CloudQuotasClient\u003c/code\u003e, where all Remote Procedure Calls (RPCs) are available as member functions.\u003c/p\u003e\n"],["\u003cp\u003eAlthough this library is in General Availability (GA), it does not adhere to Semantic Versioning.\u003c/p\u003e\n"],["\u003cp\u003eThe page includes resources on error handling, endpoint overrides, authentication credentials, and the use of environment variables to configure library behavior.\u003c/p\u003e\n"]]],[],null,["Version 2.27.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/cloudquotas/latest)\n- [2.41.0](/cpp/docs/reference/cloudquotas/2.41.0)\n- [2.40.0](/cpp/docs/reference/cloudquotas/2.40.0)\n- [2.39.0](/cpp/docs/reference/cloudquotas/2.39.0)\n- [2.38.0](/cpp/docs/reference/cloudquotas/2.38.0)\n- [2.37.0](/cpp/docs/reference/cloudquotas/2.37.0)\n- [2.36.0](/cpp/docs/reference/cloudquotas/2.36.0)\n- [2.35.0](/cpp/docs/reference/cloudquotas/2.35.0)\n- [2.34.0](/cpp/docs/reference/cloudquotas/2.34.0)\n- [2.33.0](/cpp/docs/reference/cloudquotas/2.33.0)\n- [2.32.0](/cpp/docs/reference/cloudquotas/2.32.0)\n- [2.31.0](/cpp/docs/reference/cloudquotas/2.31.0)\n- [2.30.0](/cpp/docs/reference/cloudquotas/2.30.0)\n- [2.29.0](/cpp/docs/reference/cloudquotas/2.29.0)\n- [2.28.0](/cpp/docs/reference/cloudquotas/2.28.0)\n- [2.27.0](/cpp/docs/reference/cloudquotas/2.27.0)\n- [2.26.0](/cpp/docs/reference/cloudquotas/2.26.0)\n- [2.25.1](/cpp/docs/reference/cloudquotas/2.25.1)\n- [2.24.0](/cpp/docs/reference/cloudquotas/2.24.0)\n- [2.23.0](/cpp/docs/reference/cloudquotas/2.23.0)\n- [2.22.1](/cpp/docs/reference/cloudquotas/2.22.1)\n- [2.21.0](/cpp/docs/reference/cloudquotas/2.21.0)\n- [2.20.0](/cpp/docs/reference/cloudquotas/2.20.0) \n\nCloud Quotas API C++ Client Library\n===================================\n\nAn idiomatic C++ client library for the [Cloud Quotas API](https://cloud.google.com/docs/quota/api-overview), a service to Cloud Quotas API provides GCP service consumers with management and observability for resource usage, quotas, and restrictions of the services they consume.\n\nWhile this library is **GA** , please note that the Google Cloud C++ client libraries do **not** follow [Semantic Versioning](https://semver.org/).\n\n### Quickstart\n\nThe following shows the code that you'll run in the `google/cloud/cloudquotas/quickstart/` directory, which should give you a taste of the Cloud Quotas API C++ client library API. \n\n #include \"google/cloud/cloudquotas/v1/cloud_quotas_client.h\"\n #include \"google/cloud/location.h\"\n #include \u003ciostream\u003e\n #include \u003cstring\u003e\n\n int main(int argc, char* argv[]) try {\n if (argc != 2) {\n std::cerr \u003c\u003c \"Usage: \" \u003c\u003c argv[0] \u003c\u003c \" project-id\\n\";\n return 1;\n }\n\n namespace cloudquotas = ::google::cloud::cloudquotas_v1;\n auto client =\n cloudquotas::CloudQuotasClient(cloudquotas::MakeCloudQuotasConnection());\n\n auto const parent = google::cloud::Location(argv[1], \"global\").FullName();\n for (auto r : client.ListQuotaPreferences(parent)) {\n if (!r) throw std::move(r).status();\n std::cout \u003c\u003c r-\u003eDebugString() \u003c\u003c \"\\n\";\n }\n\n return 0;\n } catch (google::cloud::Status const& status) {\n std::cerr \u003c\u003c \"google::cloud::Status thrown: \" \u003c\u003c status \u003c\u003c \"\\n\";\n return 1;\n }\n\n### Main classes\n\nThe main class in this library is [`cloudquotas_v1::CloudQuotasClient`](/cpp/docs/reference/cloudquotas/2.27.0/classgoogle_1_1cloud_1_1cloudquotas__v1_1_1CloudQuotasClient). All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock [`cloudquotas_v1::CloudQuotasClient`](/cpp/docs/reference/cloudquotas/2.27.0/classgoogle_1_1cloud_1_1cloudquotas__v1_1_1CloudQuotasClient) when testing your application.\n\n### More Information\n\n- [Error Handling](https://cloud.google.com/cpp/docs/reference/common/latest/common-error-handling.html) - describes how the library reports errors.\n- [How to Override the Default Endpoint](/cpp/docs/reference/cloudquotas/2.27.0/cloudquotas-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/cloudquotas/2.27.0/cloudquotas-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Override Retry, Backoff, and Idempotency Policies](/cpp/docs/reference/cloudquotas/2.27.0/cloudquotas-override-retry) - describes how to change the default retry policies.\n- [Environment Variables](/cpp/docs/reference/cloudquotas/2.27.0/cloudquotas-env) - describes environment variables that can configure the behavior of the library."]]