This library uses the same mechanism (google::cloud::Options) and the commonoptionsas all other C++ client libraries for its configuration. Some*Optionclasses, which are only used in this library, are documented in this page.
[[["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 version available for the C++ IAM client library is 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThis page documents the configuration options for the C++ IAM client library, which utilizes \u003ccode\u003egoogle::cloud::Options\u003c/code\u003e and common options for configuration.\u003c/p\u003e\n"],["\u003cp\u003eThe document covers various \u003ccode\u003e*Option\u003c/code\u003e classes unique to the IAM library, including retry, backoff, and idempotency policy options, which are detailed for different IAM versions and credentials.\u003c/p\u003e\n"],["\u003cp\u003eThe page provides reference documentation for different classes of IAM configuration options, including \u003ccode\u003eIAMRetryPolicyOption\u003c/code\u003e, \u003ccode\u003eIAMBackoffPolicyOption\u003c/code\u003e, and \u003ccode\u003eIAMConnectionIdempotencyPolicyOption\u003c/code\u003e, amongst others.\u003c/p\u003e\n"],["\u003cp\u003eThe document outlines different IAM policy options, like the \u003ccode\u003eIAMPolicyOptionList\u003c/code\u003e, \u003ccode\u003eIAMCredentialsPolicyOptionList\u003c/code\u003e, \u003ccode\u003eIAMPolicyPolicyOptionList\u003c/code\u003e, and \u003ccode\u003ePoliciesPolicyOptionList\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,["# Cloud IAM Configuration Options (2.42.0-rc)\n\nVersion latestkeyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/iam/latest/group__google-cloud-iam-options)\n- [2.41.0](/cpp/docs/reference/iam/2.41.0/group__google-cloud-iam-options)\n- [2.40.0](/cpp/docs/reference/iam/2.40.0/group__google-cloud-iam-options)\n- [2.39.0](/cpp/docs/reference/iam/2.39.0/group__google-cloud-iam-options)\n- [2.38.0](/cpp/docs/reference/iam/2.38.0/group__google-cloud-iam-options)\n- [2.37.0](/cpp/docs/reference/iam/2.37.0/group__google-cloud-iam-options)\n- [2.36.0](/cpp/docs/reference/iam/2.36.0/group__google-cloud-iam-options)\n- [2.35.0](/cpp/docs/reference/iam/2.35.0/group__google-cloud-iam-options)\n- [2.34.0](/cpp/docs/reference/iam/2.34.0/group__google-cloud-iam-options)\n- [2.33.0](/cpp/docs/reference/iam/2.33.0/group__google-cloud-iam-options)\n- [2.32.0](/cpp/docs/reference/iam/2.32.0/group__google-cloud-iam-options)\n- [2.31.0](/cpp/docs/reference/iam/2.31.0/group__google-cloud-iam-options)\n- [2.30.0](/cpp/docs/reference/iam/2.30.0/group__google-cloud-iam-options)\n- [2.29.0](/cpp/docs/reference/iam/2.29.0/group__google-cloud-iam-options)\n- [2.28.0](/cpp/docs/reference/iam/2.28.0/group__google-cloud-iam-options)\n- [2.27.0](/cpp/docs/reference/iam/2.27.0/group__google-cloud-iam-options)\n- [2.26.0](/cpp/docs/reference/iam/2.26.0/group__google-cloud-iam-options)\n- [2.25.1](/cpp/docs/reference/iam/2.25.1/group__google-cloud-iam-options)\n- [2.24.0](/cpp/docs/reference/iam/2.24.0/group__google-cloud-iam-options)\n- [2.23.0](/cpp/docs/reference/iam/2.23.0/group__google-cloud-iam-options)\n- [2.22.1](/cpp/docs/reference/iam/2.22.1/group__google-cloud-iam-options)\n- [2.21.0](/cpp/docs/reference/iam/2.21.0/group__google-cloud-iam-options)\n- [2.20.0](/cpp/docs/reference/iam/2.20.0/group__google-cloud-iam-options)\n- [2.19.0](/cpp/docs/reference/iam/2.19.0/group__google-cloud-iam-options)\n- [2.18.0](/cpp/docs/reference/iam/2.18.0/group__google-cloud-iam-options)\n- [2.17.0](/cpp/docs/reference/iam/2.17.0/group__google-cloud-iam-options)\n- [2.16.0](/cpp/docs/reference/iam/2.16.0/group__google-cloud-iam-options)\n- [2.15.1](/cpp/docs/reference/iam/2.15.1/group__google-cloud-iam-options)\n- [2.14.0](/cpp/docs/reference/iam/2.14.0/group__google-cloud-iam-options)\n- [2.13.0](/cpp/docs/reference/iam/2.13.0/group__google-cloud-iam-options)\n- [2.12.0](/cpp/docs/reference/iam/2.12.0/group__google-cloud-iam-options)\n- [2.11.0](/cpp/docs/reference/iam/2.11.0/group__google-cloud-iam-options) \n\nCloud IAM Configuration Options\n===============================\n\nThis library uses the same mechanism ([`google::cloud::Options`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1Options.html)) and the common [options](https://cloud.google.com/cpp/docs/reference/common/latest/group__options.html) as all other C++ client libraries for its configuration. Some `*Option` classes, which are only used in this library, are documented in this page.\n\n###### See Also\n\n[Client Library Configuration](https://cloud.google.com/cpp/docs/reference/common/latest/group__options.html) - for an overview of client library configuration.\n\n### Classes\n\n- [`google::cloud::iam_admin_v1::IAMRetryPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__admin__v1_1_1IAMRetryPolicyOption)\n- [`google::cloud::iam_admin_v1::IAMBackoffPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__admin__v1_1_1IAMBackoffPolicyOption)\n- [`google::cloud::iam_admin_v1::IAMConnectionIdempotencyPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__admin__v1_1_1IAMConnectionIdempotencyPolicyOption)\n- [`google::cloud::iam_credentials_v1::IAMCredentialsRetryPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__credentials__v1_1_1IAMCredentialsRetryPolicyOption)\n- [`google::cloud::iam_credentials_v1::IAMCredentialsBackoffPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__credentials__v1_1_1IAMCredentialsBackoffPolicyOption)\n- [`google::cloud::iam_credentials_v1::IAMCredentialsConnectionIdempotencyPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__credentials__v1_1_1IAMCredentialsConnectionIdempotencyPolicyOption)\n- [`google::cloud::iam_v1::IAMPolicyRetryPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v1_1_1IAMPolicyRetryPolicyOption)\n- [`google::cloud::iam_v1::IAMPolicyBackoffPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v1_1_1IAMPolicyBackoffPolicyOption)\n- [`google::cloud::iam_v1::IAMPolicyConnectionIdempotencyPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v1_1_1IAMPolicyConnectionIdempotencyPolicyOption)\n- [`google::cloud::iam_v2::PoliciesRetryPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v2_1_1PoliciesRetryPolicyOption)\n- [`google::cloud::iam_v2::PoliciesBackoffPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v2_1_1PoliciesBackoffPolicyOption)\n- [`google::cloud::iam_v2::PoliciesConnectionIdempotencyPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v2_1_1PoliciesConnectionIdempotencyPolicyOption)\n- [`google::cloud::iam_v2::PoliciesPollingPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v2_1_1PoliciesPollingPolicyOption)\n- [`google::cloud::iam_v3::PolicyBindingsRetryPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PolicyBindingsRetryPolicyOption)\n- [`google::cloud::iam_v3::PolicyBindingsBackoffPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PolicyBindingsBackoffPolicyOption)\n- [`google::cloud::iam_v3::PolicyBindingsConnectionIdempotencyPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PolicyBindingsConnectionIdempotencyPolicyOption)\n- [`google::cloud::iam_v3::PolicyBindingsPollingPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PolicyBindingsPollingPolicyOption)\n- [`google::cloud::iam_v3::PrincipalAccessBoundaryPoliciesRetryPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PrincipalAccessBoundaryPoliciesRetryPolicyOption)\n- [`google::cloud::iam_v3::PrincipalAccessBoundaryPoliciesBackoffPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PrincipalAccessBoundaryPoliciesBackoffPolicyOption)\n- [`google::cloud::iam_v3::PrincipalAccessBoundaryPoliciesConnectionIdempotencyPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PrincipalAccessBoundaryPoliciesConnectionIdempotencyPolicyOption)\n- [`google::cloud::iam_v3::PrincipalAccessBoundaryPoliciesPollingPolicyOption`](/cpp/docs/reference/iam/latest/structgoogle_1_1cloud_1_1iam__v3_1_1PrincipalAccessBoundaryPoliciesPollingPolicyOption)\n\n### Types\n\n- [`IAMPolicyOptionList`](about:invalid#zCSafez)\n- [`IAMCredentialsPolicyOptionList`](about:invalid#zCSafez)\n- [`IAMPolicyPolicyOptionList`](about:invalid#zCSafez)\n- [`PoliciesPolicyOptionList`](about:invalid#zCSafez)\n- [`PolicyBindingsPolicyOptionList`](about:invalid#zCSafez)\n- [`PrincipalAccessBoundaryPoliciesPolicyOptionList`](about:invalid#zCSafez)"]]
