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 essentialcontacts_v1::EssentialContactsServiceClient:
// 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::essentialcontacts_v1::EssentialContactsServiceClient(
google::cloud::essentialcontacts_v1::
MakeEssentialContactsServiceConnection(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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 release candidate version is 2.37.0-rc, and is available to use via the provided link.\u003c/p\u003e\n"],["\u003cp\u003eThis page lists the available versions of the \u003ccode\u003eessentialcontacts-override-endpoint\u003c/code\u003e, from version 2.12.0 up to the latest release candidate version of 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe client library's default endpoint can be overridden using the \u003ccode\u003eEndpointOption\u003c/code\u003e during initialization, such as setting it to \u003ccode\u003e"private.googleapis.com"\u003c/code\u003e for Private Google Access.\u003c/p\u003e\n"],["\u003cp\u003eThis documentation lists the versions for the \u003ccode\u003eessentialcontacts_v1::EssentialContactsServiceClient\u003c/code\u003e where users can override the endpoint.\u003c/p\u003e\n"]]],[],null,[]]