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 page provides documentation for various versions of the App Engine C++ client library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eYou can override the default endpoint used by the client library by utilizing the \u003ccode\u003eEndpointOption\u003c/code\u003e when initializing the library, as demonstrated in the provided example.\u003c/p\u003e\n"],["\u003cp\u003eThe document provides examples of endpoint overrides for different client classes within the \u003ccode\u003eappengine_v1\u003c/code\u003e namespace, such as \u003ccode\u003eApplicationsClient\u003c/code\u003e, \u003ccode\u003eAuthorizedCertificatesClient\u003c/code\u003e, \u003ccode\u003eAuthorizedDomainsClient\u003c/code\u003e, \u003ccode\u003eDomainMappingsClient\u003c/code\u003e, \u003ccode\u003eFirewallClient\u003c/code\u003e, \u003ccode\u003eInstancesClient\u003c/code\u003e, \u003ccode\u003eServicesClient\u003c/code\u003e, and \u003ccode\u003eVersionsClient\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe example provided illustrates a configuration, to set the endpoint to \u003ccode\u003e"private.googleapis.com"\u003c/code\u003e, that is common when using Private Google Access.\u003c/p\u003e\n"]]],[],null,["Version 2.26.0keyboard_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/2.26.0/appengine_v1_1_1ApplicationsClient-endpoint-snippet)\n- [`appengine_v1::AuthorizedCertificatesClient`](/cpp/docs/reference/appengine/2.26.0/appengine_v1_1_1AuthorizedCertificatesClient-endpoint-snippet)\n- [`appengine_v1::AuthorizedDomainsClient`](/cpp/docs/reference/appengine/2.26.0/appengine_v1_1_1AuthorizedDomainsClient-endpoint-snippet)\n- [`appengine_v1::DomainMappingsClient`](/cpp/docs/reference/appengine/2.26.0/appengine_v1_1_1DomainMappingsClient-endpoint-snippet)\n- [`appengine_v1::FirewallClient`](/cpp/docs/reference/appengine/2.26.0/appengine_v1_1_1FirewallClient-endpoint-snippet)\n- [`appengine_v1::InstancesClient`](/cpp/docs/reference/appengine/2.26.0/appengine_v1_1_1InstancesClient-endpoint-snippet)\n- [`appengine_v1::ServicesClient`](/cpp/docs/reference/appengine/2.26.0/appengine_v1_1_1ServicesClient-endpoint-snippet)\n- [`appengine_v1::VersionsClient`](/cpp/docs/reference/appengine/2.26.0/appengine_v1_1_1VersionsClient-endpoint-snippet)"]]