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 optimization_v1::FleetRoutingClient:
// 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::optimization_v1::FleetRoutingClient(
google::cloud::optimization_v1::MakeFleetRoutingConnection(options));
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe latest version available is 2.37.0-rc, which can be accessed via the provided link.\u003c/p\u003e\n"],["\u003cp\u003eThis page provides documentation and links for numerous versions of the optimization override endpoint, ranging from 2.11.0 up to the latest version.\u003c/p\u003e\n"],["\u003cp\u003eThe default endpoint used by the client library can be overridden by using the \u003ccode\u003eEndpointOption\u003c/code\u003e during initialization, allowing for customized configurations.\u003c/p\u003e\n"],["\u003cp\u003eAn example is provided on how to change the default endpoint for \u003ccode\u003eoptimization_v1::FleetRoutingClient\u003c/code\u003e to \u003ccode\u003eprivate.googleapis.com\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]