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 vision_v1::ImageAnnotatorClient:
// 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::vision_v1::ImageAnnotatorClient(
google::cloud::vision_v1::MakeImageAnnotatorConnection(options));
Follow these links to find examples for other *Client classes:
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 document provides a reference for the C++ Vision API, including documentation for versions ranging from 2.11.0 to the release candidate 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe document describes how to override the default endpoint used by the client library by using the \u003ccode\u003eEndpointOption\u003c/code\u003e when initializing the library.\u003c/p\u003e\n"],["\u003cp\u003eSpecific examples are provided for overriding the endpoint for the \u003ccode\u003evision_v1::ImageAnnotatorClient\u003c/code\u003e and \u003ccode\u003evision_v1::ProductSearchClient\u003c/code\u003e classes.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release candidate version for the vision api is 2.37.0-rc, and version 2.30.0 is also available for specific reference.\u003c/p\u003e\n"]]],[],null,["Version 2.30.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/vision/latest/vision-override-endpoint)\n- [2.41.0](/cpp/docs/reference/vision/2.41.0/vision-override-endpoint)\n- [2.40.0](/cpp/docs/reference/vision/2.40.0/vision-override-endpoint)\n- [2.39.0](/cpp/docs/reference/vision/2.39.0/vision-override-endpoint)\n- [2.38.0](/cpp/docs/reference/vision/2.38.0/vision-override-endpoint)\n- [2.37.0](/cpp/docs/reference/vision/2.37.0/vision-override-endpoint)\n- [2.36.0](/cpp/docs/reference/vision/2.36.0/vision-override-endpoint)\n- [2.35.0](/cpp/docs/reference/vision/2.35.0/vision-override-endpoint)\n- [2.34.0](/cpp/docs/reference/vision/2.34.0/vision-override-endpoint)\n- [2.33.0](/cpp/docs/reference/vision/2.33.0/vision-override-endpoint)\n- [2.32.0](/cpp/docs/reference/vision/2.32.0/vision-override-endpoint)\n- [2.31.0](/cpp/docs/reference/vision/2.31.0/vision-override-endpoint)\n- [2.30.0](/cpp/docs/reference/vision/2.30.0/vision-override-endpoint)\n- [2.29.0](/cpp/docs/reference/vision/2.29.0/vision-override-endpoint)\n- [2.28.0](/cpp/docs/reference/vision/2.28.0/vision-override-endpoint)\n- [2.27.0](/cpp/docs/reference/vision/2.27.0/vision-override-endpoint)\n- [2.26.0](/cpp/docs/reference/vision/2.26.0/vision-override-endpoint)\n- [2.25.1](/cpp/docs/reference/vision/2.25.1/vision-override-endpoint)\n- [2.24.0](/cpp/docs/reference/vision/2.24.0/vision-override-endpoint)\n- [2.23.0](/cpp/docs/reference/vision/2.23.0/vision-override-endpoint)\n- [2.22.1](/cpp/docs/reference/vision/2.22.1/vision-override-endpoint)\n- [2.21.0](/cpp/docs/reference/vision/2.21.0/vision-override-endpoint)\n- [2.20.0](/cpp/docs/reference/vision/2.20.0/vision-override-endpoint)\n- [2.19.0](/cpp/docs/reference/vision/2.19.0/vision-override-endpoint)\n- [2.18.0](/cpp/docs/reference/vision/2.18.0/vision-override-endpoint)\n- [2.17.0](/cpp/docs/reference/vision/2.17.0/vision-override-endpoint)\n- [2.16.0](/cpp/docs/reference/vision/2.16.0/vision-override-endpoint)\n- [2.15.1](/cpp/docs/reference/vision/2.15.1/vision-override-endpoint)\n- [2.14.0](/cpp/docs/reference/vision/2.14.0/vision-override-endpoint)\n- [2.13.0](/cpp/docs/reference/vision/2.13.0/vision-override-endpoint)\n- [2.12.0](/cpp/docs/reference/vision/2.12.0/vision-override-endpoint)\n- [2.11.0](/cpp/docs/reference/vision/2.11.0/vision-override-endpoint) \n\nHow to Override the Default Endpoint\n====================================\n\nIn some cases, you may need to override the default endpoint used by the client library. Use the [EndpointOption](https://cloud.google.com/cpp/docs/reference/common/latest/structgoogle_1_1cloud_1_1EndpointOption.html) when initializing the client library to change this default.\n\nFor example, this will override the default endpoint for `vision_v1::ImageAnnotatorClient`: \n\n // This configuration is common with Private Google Access:\n // https://cloud.google.com/vpc/docs/private-google-access\n auto options = google::cloud::Options{}.set\u003cgoogle::cloud::EndpointOption\u003e(\n \"private.googleapis.com\");\n auto client = google::cloud::vision_v1::ImageAnnotatorClient(\n google::cloud::vision_v1::MakeImageAnnotatorConnection(options));\n\nFollow these links to find examples for other `*Client` classes:\n\n- [`vision_v1::ImageAnnotatorClient`](/cpp/docs/reference/vision/2.30.0/vision_v1_1_1ImageAnnotatorClient-endpoint-snippet)\n- [`vision_v1::ProductSearchClient`](/cpp/docs/reference/vision/2.30.0/vision_v1_1_1ProductSearchClient-endpoint-snippet)"]]
