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\u003eThe latest release candidate version is 2.37.0-rc, and this page includes version documentation from 2.11.0 up through the latest version.\u003c/p\u003e\n"],["\u003cp\u003eYou can override the default endpoint of the client library using the \u003ccode\u003eEndpointOption\u003c/code\u003e during initialization, for situations where a different endpoint is needed.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eappengine_v1::ApplicationsClient\u003c/code\u003e is an example of how to override the default endpoint.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes examples for endpoint override for \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 classes.\u003c/p\u003e\n"]]],[],null,["Version 2.15.1keyboard_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/2.15.1/appengine_v1_1_1ApplicationsClient-endpoint-snippet)\n- [`appengine_v1::AuthorizedCertificatesClient`](/cpp/docs/reference/appengine/2.15.1/appengine_v1_1_1AuthorizedCertificatesClient-endpoint-snippet)\n- [`appengine_v1::AuthorizedDomainsClient`](/cpp/docs/reference/appengine/2.15.1/appengine_v1_1_1AuthorizedDomainsClient-endpoint-snippet)\n- [`appengine_v1::DomainMappingsClient`](/cpp/docs/reference/appengine/2.15.1/appengine_v1_1_1DomainMappingsClient-endpoint-snippet)\n- [`appengine_v1::FirewallClient`](/cpp/docs/reference/appengine/2.15.1/appengine_v1_1_1FirewallClient-endpoint-snippet)\n- [`appengine_v1::InstancesClient`](/cpp/docs/reference/appengine/2.15.1/appengine_v1_1_1InstancesClient-endpoint-snippet)\n- [`appengine_v1::ServicesClient`](/cpp/docs/reference/appengine/2.15.1/appengine_v1_1_1ServicesClient-endpoint-snippet)\n- [`appengine_v1::VersionsClient`](/cpp/docs/reference/appengine/2.15.1/appengine_v1_1_1VersionsClient-endpoint-snippet)"]]