In some cases, you may need to override the default endpoint used by the client library. Use theEndpointOptionwhen initializing the client library to change this default.
For example, this will override the default endpoint foriam_admin_v1::IAMClient:
// This configuration is common with Private Google Access:
// https://cloud.google.com/vpc/docs/private-google-access
auto options = google::cloud::Options{}.set<google::cloud::EndpointOption>(
"private.googleapis.com");
auto client = google::cloud::iam_admin_v1::IAMClient(
google::cloud::iam_admin_v1::MakeIAMConnection(options));
Follow these links to find examples for other*Clientclasses:
[[["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 overriding the default endpoint in the C++ client library for Google Cloud IAM services.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version is 2.37.0-rc, with several other previous versions also available, starting from 2.11.0 up to 2.36.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eEndpointOption\u003c/code\u003e can be used during client initialization to change the default endpoint, exemplified by overriding the endpoint for \u003ccode\u003eiam_admin_v1::IAMClient\u003c/code\u003e to "private.googleapis.com".\u003c/p\u003e\n"],["\u003cp\u003eSpecific examples are available for the \u003ccode\u003eiam_admin_v1::IAMClient\u003c/code\u003e, \u003ccode\u003eiam_credentials_v1::IAMCredentialsClient\u003c/code\u003e, \u003ccode\u003eiam_v1::IAMPolicyClient\u003c/code\u003e, and \u003ccode\u003eiam_v2::PoliciesClient\u003c/code\u003e classes, demonstrating how to override their endpoints.\u003c/p\u003e\n"]]],[],null,["Version 2.31.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/iam/latest/iam-override-endpoint)\n- [2.41.0](/cpp/docs/reference/iam/2.41.0/iam-override-endpoint)\n- [2.40.0](/cpp/docs/reference/iam/2.40.0/iam-override-endpoint)\n- [2.39.0](/cpp/docs/reference/iam/2.39.0/iam-override-endpoint)\n- [2.38.0](/cpp/docs/reference/iam/2.38.0/iam-override-endpoint)\n- [2.37.0](/cpp/docs/reference/iam/2.37.0/iam-override-endpoint)\n- [2.36.0](/cpp/docs/reference/iam/2.36.0/iam-override-endpoint)\n- [2.35.0](/cpp/docs/reference/iam/2.35.0/iam-override-endpoint)\n- [2.34.0](/cpp/docs/reference/iam/2.34.0/iam-override-endpoint)\n- [2.33.0](/cpp/docs/reference/iam/2.33.0/iam-override-endpoint)\n- [2.32.0](/cpp/docs/reference/iam/2.32.0/iam-override-endpoint)\n- [2.31.0](/cpp/docs/reference/iam/2.31.0/iam-override-endpoint)\n- [2.30.0](/cpp/docs/reference/iam/2.30.0/iam-override-endpoint)\n- [2.29.0](/cpp/docs/reference/iam/2.29.0/iam-override-endpoint)\n- [2.28.0](/cpp/docs/reference/iam/2.28.0/iam-override-endpoint)\n- [2.27.0](/cpp/docs/reference/iam/2.27.0/iam-override-endpoint)\n- [2.26.0](/cpp/docs/reference/iam/2.26.0/iam-override-endpoint)\n- [2.25.1](/cpp/docs/reference/iam/2.25.1/iam-override-endpoint)\n- [2.24.0](/cpp/docs/reference/iam/2.24.0/iam-override-endpoint)\n- [2.23.0](/cpp/docs/reference/iam/2.23.0/iam-override-endpoint)\n- [2.22.1](/cpp/docs/reference/iam/2.22.1/iam-override-endpoint)\n- [2.21.0](/cpp/docs/reference/iam/2.21.0/iam-override-endpoint)\n- [2.20.0](/cpp/docs/reference/iam/2.20.0/iam-override-endpoint)\n- [2.19.0](/cpp/docs/reference/iam/2.19.0/iam-override-endpoint)\n- [2.18.0](/cpp/docs/reference/iam/2.18.0/iam-override-endpoint)\n- [2.17.0](/cpp/docs/reference/iam/2.17.0/iam-override-endpoint)\n- [2.16.0](/cpp/docs/reference/iam/2.16.0/iam-override-endpoint)\n- [2.15.1](/cpp/docs/reference/iam/2.15.1/iam-override-endpoint)\n- [2.14.0](/cpp/docs/reference/iam/2.14.0/iam-override-endpoint)\n- [2.13.0](/cpp/docs/reference/iam/2.13.0/iam-override-endpoint)\n- [2.12.0](/cpp/docs/reference/iam/2.12.0/iam-override-endpoint)\n- [2.11.0](/cpp/docs/reference/iam/2.11.0/iam-override-endpoint) \n\nHow to Override the Default Endpoint\n====================================\n\nIn some cases, you may need to override the default endpoint used by the client library. Use the [EndpointOption](https://cloud.google.com/cpp/docs/reference/common/latest/structgoogle_1_1cloud_1_1EndpointOption.html) when initializing the client library to change this default.\n\nFor example, this will override the default endpoint for `iam_admin_v1::IAMClient`: \n\n // This configuration is common with Private Google Access:\n // https://cloud.google.com/vpc/docs/private-google-access\n auto options = google::cloud::Options{}.set\u003cgoogle::cloud::EndpointOption\u003e(\n \"private.googleapis.com\");\n auto client = google::cloud::iam_admin_v1::IAMClient(\n google::cloud::iam_admin_v1::MakeIAMConnection(options));\n\nFollow these links to find examples for other `*Client` classes:\n\n- [`iam_admin_v1::IAMClient`](/cpp/docs/reference/iam/2.31.0/iam_admin_v1_1_1IAMClient-endpoint-snippet)\n- [`iam_credentials_v1::IAMCredentialsClient`](/cpp/docs/reference/iam/2.31.0/iam_credentials_v1_1_1IAMCredentialsClient-endpoint-snippet)\n- [`iam_v1::IAMPolicyClient`](/cpp/docs/reference/iam/2.31.0/iam_v1_1_1IAMPolicyClient-endpoint-snippet)\n- [`iam_v2::PoliciesClient`](/cpp/docs/reference/iam/2.31.0/iam_v2_1_1PoliciesClient-endpoint-snippet)"]]