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 forapikeys_v2::ApiKeysClient:
// 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::apikeys_v2::ApiKeysClient(
google::cloud::apikeys_v2::MakeApiKeysConnection(options));
[[["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.\u003c/p\u003e\n"],["\u003cp\u003eThis page provides access to documentation for various versions of the API keys library, ranging from 2.11.0 up to the latest release candidate.\u003c/p\u003e\n"],["\u003cp\u003eThe document details how to override the default endpoint used by the client library using the \u003ccode\u003eEndpointOption\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eEndpointOption\u003c/code\u003e allows for configurations such as setting a \u003ccode\u003eprivate.googleapis.com\u003c/code\u003e endpoint.\u003c/p\u003e\n"],["\u003cp\u003eEach version listed has a corresponding documentation link regarding how to override the endpoint.\u003c/p\u003e\n"]]],[],null,["Version 2.27.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/apikeys/latest/apikeys-override-endpoint)\n- [2.41.0](/cpp/docs/reference/apikeys/2.41.0/apikeys-override-endpoint)\n- [2.40.0](/cpp/docs/reference/apikeys/2.40.0/apikeys-override-endpoint)\n- [2.39.0](/cpp/docs/reference/apikeys/2.39.0/apikeys-override-endpoint)\n- [2.38.0](/cpp/docs/reference/apikeys/2.38.0/apikeys-override-endpoint)\n- [2.37.0](/cpp/docs/reference/apikeys/2.37.0/apikeys-override-endpoint)\n- [2.36.0](/cpp/docs/reference/apikeys/2.36.0/apikeys-override-endpoint)\n- [2.35.0](/cpp/docs/reference/apikeys/2.35.0/apikeys-override-endpoint)\n- [2.34.0](/cpp/docs/reference/apikeys/2.34.0/apikeys-override-endpoint)\n- [2.33.0](/cpp/docs/reference/apikeys/2.33.0/apikeys-override-endpoint)\n- [2.32.0](/cpp/docs/reference/apikeys/2.32.0/apikeys-override-endpoint)\n- [2.31.0](/cpp/docs/reference/apikeys/2.31.0/apikeys-override-endpoint)\n- [2.30.0](/cpp/docs/reference/apikeys/2.30.0/apikeys-override-endpoint)\n- [2.29.0](/cpp/docs/reference/apikeys/2.29.0/apikeys-override-endpoint)\n- [2.28.0](/cpp/docs/reference/apikeys/2.28.0/apikeys-override-endpoint)\n- [2.27.0](/cpp/docs/reference/apikeys/2.27.0/apikeys-override-endpoint)\n- [2.26.0](/cpp/docs/reference/apikeys/2.26.0/apikeys-override-endpoint)\n- [2.25.1](/cpp/docs/reference/apikeys/2.25.1/apikeys-override-endpoint)\n- [2.24.0](/cpp/docs/reference/apikeys/2.24.0/apikeys-override-endpoint)\n- [2.23.0](/cpp/docs/reference/apikeys/2.23.0/apikeys-override-endpoint)\n- [2.22.1](/cpp/docs/reference/apikeys/2.22.1/apikeys-override-endpoint)\n- [2.21.0](/cpp/docs/reference/apikeys/2.21.0/apikeys-override-endpoint)\n- [2.20.0](/cpp/docs/reference/apikeys/2.20.0/apikeys-override-endpoint)\n- [2.19.0](/cpp/docs/reference/apikeys/2.19.0/apikeys-override-endpoint)\n- [2.18.0](/cpp/docs/reference/apikeys/2.18.0/apikeys-override-endpoint)\n- [2.17.0](/cpp/docs/reference/apikeys/2.17.0/apikeys-override-endpoint)\n- [2.16.0](/cpp/docs/reference/apikeys/2.16.0/apikeys-override-endpoint)\n- [2.15.1](/cpp/docs/reference/apikeys/2.15.1/apikeys-override-endpoint)\n- [2.14.0](/cpp/docs/reference/apikeys/2.14.0/apikeys-override-endpoint)\n- [2.13.0](/cpp/docs/reference/apikeys/2.13.0/apikeys-override-endpoint)\n- [2.12.0](/cpp/docs/reference/apikeys/2.12.0/apikeys-override-endpoint)\n- [2.11.0](/cpp/docs/reference/apikeys/2.11.0/apikeys-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 `apikeys_v2::ApiKeysClient`: \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::apikeys_v2::ApiKeysClient(\n google::cloud::apikeys_v2::MakeApiKeysConnection(options));"]]
