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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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\u003eThe webpage provides a list of versioned documentation for a C++ client library, with version 2.37.0-rc being the latest release candidate and 2.28.0 being the current default version shown.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation covers how to override the default endpoint for the client library using the \u003ccode\u003eEndpointOption\u003c/code\u003e, which is particularly useful for scenarios like Private Google Access.\u003c/p\u003e\n"],["\u003cp\u003eSpecific examples are provided for overriding the default endpoint for \u003ccode\u003evision_v1::ImageAnnotatorClient\u003c/code\u003e, illustrating how to set the \u003ccode\u003eEndpointOption\u003c/code\u003e during client initialization.\u003c/p\u003e\n"],["\u003cp\u003eLinks to examples for overriding the endpoint in \u003ccode\u003evision_v1::ImageAnnotatorClient\u003c/code\u003e and \u003ccode\u003evision_v1::ProductSearchClient\u003c/code\u003e classes are readily available for quick reference.\u003c/p\u003e\n"]]],[],null,["Version 2.28.0keyboard_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/2.28.0/vision_v1_1_1ImageAnnotatorClient-endpoint-snippet)\n- [`vision_v1::ProductSearchClient`](/cpp/docs/reference/vision/2.28.0/vision_v1_1_1ProductSearchClient-endpoint-snippet)"]]
