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\u003eThe latest release candidate version for the API keys documentation is 2.37.0-rc, while the current version is 2.22.1.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation provides a reference for multiple previous versions of the API keys, ranging from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eApiKeysClient\u003c/code\u003e class is used to manage API keys associated with projects.\u003c/p\u003e\n"],["\u003cp\u003eThe content details several classes, structs, and functions related to API keys, including connection management, retry policies, and configuration options, offering detailed information on using API keys.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes a list of options that can be used to configure aspects of the returned \u003ccode\u003eApiKeysConnection\u003c/code\u003e object, such as common options, gRPC options, unified credentials, and ApiKeys policy options.\u003c/p\u003e\n"]]],[],null,["# Namespace google::cloud::apikeys_v2 (2.22.1)\n\nVersion 2.22.1keyboard_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/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysClient)\n\nManages the API keys associated with projects.\n\n### [ApiKeysConnection](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection)\n\nThe [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection) object for [`ApiKeysClient`](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysClient).\n\n### [ApiKeysConnectionIdempotencyPolicy](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnectionIdempotencyPolicy)\n\n### [ApiKeysLimitedErrorCountRetryPolicy](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysLimitedErrorCountRetryPolicy)\n\nA retry policy for [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection) based on counting errors.\n\n### [ApiKeysLimitedTimeRetryPolicy](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysLimitedTimeRetryPolicy)\n\nA retry policy for [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection) based on elapsed time.\n\n### [ApiKeysRetryPolicy](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysRetryPolicy)\n\nThe retry policy for [`ApiKeysConnection`](/cpp/docs/reference/apikeys/2.22.1/classgoogle_1_1cloud_1_1apikeys__v2_1_1ApiKeysConnection).\n\nStructs\n-------\n\n### [ApiKeysBackoffPolicyOption](/cpp/docs/reference/apikeys/2.22.1/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/2.22.1/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/2.22.1/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/2.22.1/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/2.22.1/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/2.22.1/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/2.22.1/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`](about:invalid#zCSafez)\n- [`google::cloud::GrpcOptionList`](about:invalid#zCSafez)\n- [`google::cloud::UnifiedCredentialsOptionList`](about:invalid#zCSafez)\n- [`google::cloud::apikeys_v2::ApiKeysPolicyOptionList`](/cpp/docs/reference/apikeys/2.22.1/namespacegoogle_1_1cloud_1_1apikeys__v2)\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()\n\nType Aliases\n------------\n\n### ApiKeysPolicyOptionList\n\n**Alias Of** : `OptionList\u003c ApiKeysRetryPolicyOption, ApiKeysBackoffPolicyOption, ApiKeysPollingPolicyOption, ApiKeysConnectionIdempotencyPolicyOption \u003e` \nThe options applicable to ApiKeys."]]
