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 texttospeech_v1::TextToSpeechClient:
// 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::texttospeech_v1::TextToSpeechClient(
google::cloud::texttospeech_v1::MakeTextToSpeechConnection(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 for the Text-to-Speech C++ library is 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe webpage provides documentation for multiple versions of the Text-to-Speech C++ library, ranging from version 2.11.0 up to the latest release candidate.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eEndpointOption\u003c/code\u003e can be used to override the default endpoint of the Text-to-Speech client library.\u003c/p\u003e\n"],["\u003cp\u003eOverriding the endpoint can be useful in cases such as using Private Google Access, as shown in the example with the \u003ccode\u003eprivate.googleapis.com\u003c/code\u003e endpoint.\u003c/p\u003e\n"]]],[],null,[]]