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 documentai_v1::DocumentProcessorServiceClient:
// 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::documentai_v1::DocumentProcessorServiceClient(
google::cloud::documentai_v1::MakeDocumentProcessorServiceConnection(
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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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\u003eThis page provides documentation for various versions of the Document AI C++ client library, ranging from version 2.11.0 to 2.37.0-rc, with each version linking to its specific documentation on overriding the endpoint.\u003c/p\u003e\n"],["\u003cp\u003eVersion 2.37.0-rc is the latest release candidate for the Document AI C++ client library.\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 the initialization of the client library.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes an example on how to override the default endpoint for \u003ccode\u003edocumentai_v1::DocumentProcessorServiceClient\u003c/code\u003e, demonstrating the use of \u003ccode\u003egoogle::cloud::Options\u003c/code\u003e and \u003ccode\u003egoogle::cloud::EndpointOption\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eIt is explained that this feature to override endpoints is commonly needed for Private Google Access.\u003c/p\u003e\n"]]],[],null,[]]