An idiomatic C++ client library for theAPI Keys API, a service to manage the API keys associated with developer projects.
While this library isGA, please note Google Cloud C++ client libraries donotfollowSemantic Versioning.
Quickstart
The following shows the code that you'll run in thegoogle/cloud/apikeys/quickstart/directory, which should give you a taste of the API Keys API C++ client library API.
The main class in this library isapikeys_v2::ApiKeysClient. All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mockapikeys_v2::ApiKeysClientwhen 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 C++ client library for the Google Cloud API Keys API, which is designed for managing API keys associated with developer projects.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate is version 2.37.0-rc, and the page lists available versions of the client library from 2.11.0 to the latest release, with each version linking to its specific documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe main class for interacting with the API is \u003ccode\u003eapikeys_v2::ApiKeysClient\u003c/code\u003e, which exposes all RPCs as member functions, with other classes available to provide supporting functions.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation provides information about error handling, overriding the default endpoint and authentication credentials, as well as modifying retry, backoff, and idempotency policies, and it also touches on relevant environment variables.\u003c/p\u003e\n"]]],[],null,["Version 2.13.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/apikeys/latest)\n- [2.41.0](/cpp/docs/reference/apikeys/2.41.0)\n- [2.40.0](/cpp/docs/reference/apikeys/2.40.0)\n- [2.39.0](/cpp/docs/reference/apikeys/2.39.0)\n- [2.38.0](/cpp/docs/reference/apikeys/2.38.0)\n- [2.37.0](/cpp/docs/reference/apikeys/2.37.0)\n- [2.36.0](/cpp/docs/reference/apikeys/2.36.0)\n- [2.35.0](/cpp/docs/reference/apikeys/2.35.0)\n- [2.34.0](/cpp/docs/reference/apikeys/2.34.0)\n- [2.33.0](/cpp/docs/reference/apikeys/2.33.0)\n- [2.32.0](/cpp/docs/reference/apikeys/2.32.0)\n- [2.31.0](/cpp/docs/reference/apikeys/2.31.0)\n- [2.30.0](/cpp/docs/reference/apikeys/2.30.0)\n- [2.29.0](/cpp/docs/reference/apikeys/2.29.0)\n- [2.28.0](/cpp/docs/reference/apikeys/2.28.0)\n- [2.27.0](/cpp/docs/reference/apikeys/2.27.0)\n- [2.26.0](/cpp/docs/reference/apikeys/2.26.0)\n- [2.25.1](/cpp/docs/reference/apikeys/2.25.1)\n- [2.24.0](/cpp/docs/reference/apikeys/2.24.0)\n- [2.23.0](/cpp/docs/reference/apikeys/2.23.0)\n- [2.22.1](/cpp/docs/reference/apikeys/2.22.1)\n- [2.21.0](/cpp/docs/reference/apikeys/2.21.0)\n- [2.20.0](/cpp/docs/reference/apikeys/2.20.0)\n- [2.19.0](/cpp/docs/reference/apikeys/2.19.0)\n- [2.18.0](/cpp/docs/reference/apikeys/2.18.0)\n- [2.17.0](/cpp/docs/reference/apikeys/2.17.0)\n- [2.16.0](/cpp/docs/reference/apikeys/2.16.0)\n- [2.15.1](/cpp/docs/reference/apikeys/2.15.1)\n- [2.14.0](/cpp/docs/reference/apikeys/2.14.0)\n- [2.13.0](/cpp/docs/reference/apikeys/2.13.0)\n- [2.12.0](/cpp/docs/reference/apikeys/2.12.0)\n- [2.11.0](/cpp/docs/reference/apikeys/2.11.0) \n\nAPI Keys API C++ Client Library\n===============================\n\nAn idiomatic C++ client library for the [API Keys API](https://cloud.google.com/api-keys), a service to manage the API keys associated with developer projects.\n\nWhile this library is **GA** , please note 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/apikeys/quickstart/` directory, which should give you a taste of the API Keys API C++ client library API. \n\n #include \"google/cloud/apikeys/v2/api_keys_client.h\"\n #include \u003ciostream\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 apikeys = ::google::cloud::apikeys_v2;\n auto client = apikeys::ApiKeysClient(apikeys::MakeApiKeysConnection());\n\n auto const parent = std::string{\"projects/\"} + argv[1] + \"/locations/global\";\n for (auto r : client.ListKeys(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 [`apikeys_v2::ApiKeysClient`](/cpp/docs/reference/apikeys/2.13.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysClient). All RPCs are exposed as member functions of this class. Other classes provide helpers, configuration parameters, and infrastructure to mock [`apikeys_v2::ApiKeysClient`](/cpp/docs/reference/apikeys/2.13.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysClient) 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/apikeys/2.13.0/apikeys-override-endpoint) - describes how to override the default endpoint.\n- [How to Override the Authentication Credentials](/cpp/docs/reference/apikeys/2.13.0/apikeys-override-authentication) - describes how to change the authentication credentials used by the library.\n- [Override Retry, Backoff, and Idempotency Policies](/cpp/docs/reference/apikeys/2.13.0/apikeys-override-retry) - describes how to change the default retry policies.\n- [Environment Variables](/cpp/docs/reference/apikeys/2.13.0/apikeys-env) - describes environment variables that can configure the behavior of the library."]]