The returned connection object should not be used directly; instead it should be passed as an argument to the constructor ofApiKeysClient.
The optionaloptionsargument may be used to configure aspects of the returnedApiKeysConnection. Expected options are any of the types in the following option lists:
[[["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 page provides documentation for the Google Cloud C++ Client Library for API Keys, with a focus on version 2.34.0.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate is version 2.37.0-rc, and the page lists all available versions from 2.37.0-rc down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eKey classes documented include \u003ccode\u003eApiKeysClient\u003c/code\u003e for managing API keys and \u003ccode\u003eApiKeysConnection\u003c/code\u003e, which is the object used by the client.\u003c/p\u003e\n"],["\u003cp\u003eSeveral retry and policy classes, like \u003ccode\u003eApiKeysLimitedErrorCountRetryPolicy\u003c/code\u003e, \u003ccode\u003eApiKeysRetryPolicy\u003c/code\u003e and \u003ccode\u003eApiKeysConnectionIdempotencyPolicy\u003c/code\u003e are documented, allowing for customized handling of errors and operation retries.\u003c/p\u003e\n"],["\u003cp\u003eThe page includes a function, \u003ccode\u003eMakeApiKeysConnection\u003c/code\u003e, to create an \u003ccode\u003eApiKeysConnection\u003c/code\u003e object, enabling users to manage API keys, and includes a description of options users can use, as well as a function, \u003ccode\u003eMakeDefaultApiKeysConnectionIdempotencyPolicy\u003c/code\u003e, to generate policy.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::apikeys_v2 (2.34.0)\n\nVersion 2.34.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/apikeys/latest/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.41.0](/cpp/docs/reference/apikeys/2.41.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.40.0](/cpp/docs/reference/apikeys/2.40.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.39.0](/cpp/docs/reference/apikeys/2.39.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.38.0](/cpp/docs/reference/apikeys/2.38.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.37.0](/cpp/docs/reference/apikeys/2.37.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.36.0](/cpp/docs/reference/apikeys/2.36.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.35.0](/cpp/docs/reference/apikeys/2.35.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.34.0](/cpp/docs/reference/apikeys/2.34.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.33.0](/cpp/docs/reference/apikeys/2.33.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.32.0](/cpp/docs/reference/apikeys/2.32.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.31.0](/cpp/docs/reference/apikeys/2.31.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.30.0](/cpp/docs/reference/apikeys/2.30.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.29.0](/cpp/docs/reference/apikeys/2.29.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.28.0](/cpp/docs/reference/apikeys/2.28.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.27.0](/cpp/docs/reference/apikeys/2.27.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.26.0](/cpp/docs/reference/apikeys/2.26.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.25.1](/cpp/docs/reference/apikeys/2.25.1/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.24.0](/cpp/docs/reference/apikeys/2.24.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.23.0](/cpp/docs/reference/apikeys/2.23.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.22.1](/cpp/docs/reference/apikeys/2.22.1/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.21.0](/cpp/docs/reference/apikeys/2.21.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.20.0](/cpp/docs/reference/apikeys/2.20.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.19.0](/cpp/docs/reference/apikeys/2.19.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.18.0](/cpp/docs/reference/apikeys/2.18.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.17.0](/cpp/docs/reference/apikeys/2.17.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.16.0](/cpp/docs/reference/apikeys/2.16.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.15.1](/cpp/docs/reference/apikeys/2.15.1/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.14.0](/cpp/docs/reference/apikeys/2.14.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.13.0](/cpp/docs/reference/apikeys/2.13.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.12.0](/cpp/docs/reference/apikeys/2.12.0/namespacegoogle_1_1cloud_1_1apikeys__v2)\n- [2.11.0](/cpp/docs/reference/apikeys/2.11.0/namespacegoogle_1_1cloud_1_1apikeys__v2) \n\nClasses\n-------\n\n### [ApiKeysClient](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysClient)\n\nManages the API keys associated with projects.\n\n### [ApiKeysConnection](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection)\n\nThe [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection) object for [`ApiKeysClient`](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysClient).\n\n### [ApiKeysConnectionIdempotencyPolicy](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnectionIdempotencyPolicy)\n\n### [ApiKeysLimitedErrorCountRetryPolicy](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysLimitedErrorCountRetryPolicy)\n\nA retry policy for [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection) based on counting errors.\n\n### [ApiKeysLimitedTimeRetryPolicy](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysLimitedTimeRetryPolicy)\n\nA retry policy for [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection) based on elapsed time.\n\n### [ApiKeysRetryPolicy](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysRetryPolicy)\n\nThe retry policy for [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection).\n\nStructs\n-------\n\n### [ApiKeysBackoffPolicyOption](/cpp/docs/reference/apikeys/2.34.0/structgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysBackoffPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the backoff policy.\n\n### [ApiKeysConnectionIdempotencyPolicyOption](/cpp/docs/reference/apikeys/2.34.0/structgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnectionIdempotencyPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure which operations are retried.\n\n### [ApiKeysPollingPolicyOption](/cpp/docs/reference/apikeys/2.34.0/structgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysPollingPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the long-running operations polling policy.\n\n### [ApiKeysRetryPolicyOption](/cpp/docs/reference/apikeys/2.34.0/structgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysRetryPolicyOption)\n\nUse with [`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html) to configure the retry policy.\n\nFunctions\n---------\n\n### MakeApiKeysConnection(Options)\n\nA factory function to construct an object of type [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection). \nThe returned connection object should not be used directly; instead it should be passed as an argument to the constructor of [ApiKeysClient](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysClient).\n\nThe optional `options` argument may be used to configure aspects of the returned [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.34.0/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection). Expected options are any of the types in the following option lists:\n\n- [`google::cloud::CommonOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::GrpcOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::UnifiedCredentialsOptionList`](https://cloud.google.com/cpp/docs/reference/common/latest/namespacegoogle_1_1cloud.html)\n- [`google::cloud::apikeys_v2::ApiKeysPolicyOptionList`](about:invalid#zCSafez)\n\n| **Note:** Unexpected options will be ignored. To log unexpected options instead, set `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` in the environment.\n\n### MakeDefaultApiKeysConnectionIdempotencyPolicy()"]]
