In some cases, you may need to override the default endpoint used by the client library. Use the EndpointOption when initializing the client library to change this default.
For example, this will override the default endpoint for apikeys_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 vpc_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 2025-08-14 UTC."],[[["\u003cp\u003eThe latest version available is 2.37.0-rc, and there are multiple past versions listed, ranging from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe content provides access to documentation for each version, showing the \u003ccode\u003e/apikeys-override-endpoint\u003c/code\u003e page.\u003c/p\u003e\n"],["\u003cp\u003eUsers can override the default endpoint using \u003ccode\u003eEndpointOption\u003c/code\u003e when initializing the client library.\u003c/p\u003e\n"],["\u003cp\u003eAn example is given to show how to override the default endpoint for \u003ccode\u003eapikeys_v2::ApiKeysClient\u003c/code\u003e, using the endpoint \u003ccode\u003eprivate.googleapis.com\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]