In some cases, you may need to override the default endpoint used by the client library. Use theEndpointOptionwhen initializing the client library to change this default.
For example, this will override the default endpoint forappengine_v1::ApplicationsClient:
// 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::appengine_v1::ApplicationsClient(
google::cloud::appengine_v1::MakeApplicationsConnection(options));
Follow these links to find examples for other*Clientclasses:
[[["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 2025-09-04 UTC."],[[["\u003cp\u003eThis document provides a reference for overriding the default endpoint used by the client library for various versions of App Engine, ranging from 2.11.0 up to the latest release candidate, 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eEndpointOption\u003c/code\u003e can be used during client library initialization to override the default endpoint.\u003c/p\u003e\n"],["\u003cp\u003eThe example provided demonstrates how to override the endpoint for \u003ccode\u003eappengine_v1::ApplicationsClient\u003c/code\u003e, particularly in cases such as Private Google Access.\u003c/p\u003e\n"],["\u003cp\u003eLinks are included to provide specific examples for other \u003ccode\u003e*Client\u003c/code\u003e classes like \u003ccode\u003eAuthorizedCertificatesClient\u003c/code\u003e, \u003ccode\u003eDomainMappingsClient\u003c/code\u003e, \u003ccode\u003eFirewallClient\u003c/code\u003e, and more.\u003c/p\u003e\n"],["\u003cp\u003eAll the links provided in this content refer to documentation available on the 2.35.0 version, which can be accessed by following the specific links.\u003c/p\u003e\n"]]],[],null,["Version 2.35.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/appengine/latest/appengine-override-endpoint)\n- [2.41.0](/cpp/docs/reference/appengine/2.41.0/appengine-override-endpoint)\n- [2.40.0](/cpp/docs/reference/appengine/2.40.0/appengine-override-endpoint)\n- [2.39.0](/cpp/docs/reference/appengine/2.39.0/appengine-override-endpoint)\n- [2.38.0](/cpp/docs/reference/appengine/2.38.0/appengine-override-endpoint)\n- [2.37.0](/cpp/docs/reference/appengine/2.37.0/appengine-override-endpoint)\n- [2.36.0](/cpp/docs/reference/appengine/2.36.0/appengine-override-endpoint)\n- [2.35.0](/cpp/docs/reference/appengine/2.35.0/appengine-override-endpoint)\n- [2.34.0](/cpp/docs/reference/appengine/2.34.0/appengine-override-endpoint)\n- [2.33.0](/cpp/docs/reference/appengine/2.33.0/appengine-override-endpoint)\n- [2.32.0](/cpp/docs/reference/appengine/2.32.0/appengine-override-endpoint)\n- [2.31.0](/cpp/docs/reference/appengine/2.31.0/appengine-override-endpoint)\n- [2.30.0](/cpp/docs/reference/appengine/2.30.0/appengine-override-endpoint)\n- [2.29.0](/cpp/docs/reference/appengine/2.29.0/appengine-override-endpoint)\n- [2.28.0](/cpp/docs/reference/appengine/2.28.0/appengine-override-endpoint)\n- [2.27.0](/cpp/docs/reference/appengine/2.27.0/appengine-override-endpoint)\n- [2.26.0](/cpp/docs/reference/appengine/2.26.0/appengine-override-endpoint)\n- [2.25.1](/cpp/docs/reference/appengine/2.25.1/appengine-override-endpoint)\n- [2.24.0](/cpp/docs/reference/appengine/2.24.0/appengine-override-endpoint)\n- [2.23.0](/cpp/docs/reference/appengine/2.23.0/appengine-override-endpoint)\n- [2.22.1](/cpp/docs/reference/appengine/2.22.1/appengine-override-endpoint)\n- [2.21.0](/cpp/docs/reference/appengine/2.21.0/appengine-override-endpoint)\n- [2.20.0](/cpp/docs/reference/appengine/2.20.0/appengine-override-endpoint)\n- [2.19.0](/cpp/docs/reference/appengine/2.19.0/appengine-override-endpoint)\n- [2.18.0](/cpp/docs/reference/appengine/2.18.0/appengine-override-endpoint)\n- [2.17.0](/cpp/docs/reference/appengine/2.17.0/appengine-override-endpoint)\n- [2.16.0](/cpp/docs/reference/appengine/2.16.0/appengine-override-endpoint)\n- [2.15.1](/cpp/docs/reference/appengine/2.15.1/appengine-override-endpoint)\n- [2.14.0](/cpp/docs/reference/appengine/2.14.0/appengine-override-endpoint)\n- [2.13.0](/cpp/docs/reference/appengine/2.13.0/appengine-override-endpoint)\n- [2.12.0](/cpp/docs/reference/appengine/2.12.0/appengine-override-endpoint)\n- [2.11.0](/cpp/docs/reference/appengine/2.11.0/appengine-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 `appengine_v1::ApplicationsClient`: \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::appengine_v1::ApplicationsClient(\n google::cloud::appengine_v1::MakeApplicationsConnection(options));\n\nFollow these links to find examples for other `*Client` classes:\n\n- [`appengine_v1::ApplicationsClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1ApplicationsClient-endpoint-snippet)\n- [`appengine_v1::AuthorizedCertificatesClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1AuthorizedCertificatesClient-endpoint-snippet)\n- [`appengine_v1::AuthorizedDomainsClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1AuthorizedDomainsClient-endpoint-snippet)\n- [`appengine_v1::DomainMappingsClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1DomainMappingsClient-endpoint-snippet)\n- [`appengine_v1::FirewallClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1FirewallClient-endpoint-snippet)\n- [`appengine_v1::InstancesClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1InstancesClient-endpoint-snippet)\n- [`appengine_v1::ServicesClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1ServicesClient-endpoint-snippet)\n- [`appengine_v1::VersionsClient`](/cpp/docs/reference/appengine/2.35.0/appengine_v1_1_1VersionsClient-endpoint-snippet)"]]