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 forpolicysimulator_v1::SimulatorClient:
// 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::policysimulator_v1::SimulatorClient(
google::cloud::policysimulator_v1::MakeSimulatorConnection(options));
[[["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 webpage provides documentation for the \u003ccode\u003epolicysimulator-override-endpoint\u003c/code\u003e feature across multiple versions, ranging from 2.15.1 up to the latest release candidate, 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe primary function documented on this page is how to override the default endpoint used by the client library, utilizing the \u003ccode\u003eEndpointOption\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eEndpointOption\u003c/code\u003e allows users to change the default endpoint by setting a custom one when initializing the client library.\u003c/p\u003e\n"],["\u003cp\u003eA code example demonstrates how to override the default endpoint for \u003ccode\u003epolicysimulator_v1::SimulatorClient\u003c/code\u003e, which is particularly useful for configurations like Private Google Access.\u003c/p\u003e\n"],["\u003cp\u003eThe current version this documentation is focused on is 2.29.0, although it also provides access to all the versions in between 2.15.1 and 2.37.0-rc.\u003c/p\u003e\n"]]],[],null,["Version 2.29.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/policysimulator/latest/policysimulator-override-endpoint)\n- [2.41.0](/cpp/docs/reference/policysimulator/2.41.0/policysimulator-override-endpoint)\n- [2.40.0](/cpp/docs/reference/policysimulator/2.40.0/policysimulator-override-endpoint)\n- [2.39.0](/cpp/docs/reference/policysimulator/2.39.0/policysimulator-override-endpoint)\n- [2.38.0](/cpp/docs/reference/policysimulator/2.38.0/policysimulator-override-endpoint)\n- [2.37.0](/cpp/docs/reference/policysimulator/2.37.0/policysimulator-override-endpoint)\n- [2.36.0](/cpp/docs/reference/policysimulator/2.36.0/policysimulator-override-endpoint)\n- [2.35.0](/cpp/docs/reference/policysimulator/2.35.0/policysimulator-override-endpoint)\n- [2.34.0](/cpp/docs/reference/policysimulator/2.34.0/policysimulator-override-endpoint)\n- [2.33.0](/cpp/docs/reference/policysimulator/2.33.0/policysimulator-override-endpoint)\n- [2.32.0](/cpp/docs/reference/policysimulator/2.32.0/policysimulator-override-endpoint)\n- [2.31.0](/cpp/docs/reference/policysimulator/2.31.0/policysimulator-override-endpoint)\n- [2.30.0](/cpp/docs/reference/policysimulator/2.30.0/policysimulator-override-endpoint)\n- [2.29.0](/cpp/docs/reference/policysimulator/2.29.0/policysimulator-override-endpoint)\n- [2.28.0](/cpp/docs/reference/policysimulator/2.28.0/policysimulator-override-endpoint)\n- [2.27.0](/cpp/docs/reference/policysimulator/2.27.0/policysimulator-override-endpoint)\n- [2.26.0](/cpp/docs/reference/policysimulator/2.26.0/policysimulator-override-endpoint)\n- [2.25.1](/cpp/docs/reference/policysimulator/2.25.1/policysimulator-override-endpoint)\n- [2.24.0](/cpp/docs/reference/policysimulator/2.24.0/policysimulator-override-endpoint)\n- [2.23.0](/cpp/docs/reference/policysimulator/2.23.0/policysimulator-override-endpoint)\n- [2.22.1](/cpp/docs/reference/policysimulator/2.22.1/policysimulator-override-endpoint)\n- [2.21.0](/cpp/docs/reference/policysimulator/2.21.0/policysimulator-override-endpoint)\n- [2.20.0](/cpp/docs/reference/policysimulator/2.20.0/policysimulator-override-endpoint)\n- [2.19.0](/cpp/docs/reference/policysimulator/2.19.0/policysimulator-override-endpoint)\n- [2.18.0](/cpp/docs/reference/policysimulator/2.18.0/policysimulator-override-endpoint)\n- [2.17.0](/cpp/docs/reference/policysimulator/2.17.0/policysimulator-override-endpoint)\n- [2.16.0](/cpp/docs/reference/policysimulator/2.16.0/policysimulator-override-endpoint)\n- [2.15.1](/cpp/docs/reference/policysimulator/2.15.1/policysimulator-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 `policysimulator_v1::SimulatorClient`: \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::policysimulator_v1::SimulatorClient(\n google::cloud::policysimulator_v1::MakeSimulatorConnection(options));"]]
