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 iot_v1::DeviceManagerClient:
// 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::iot_v1::DeviceManagerClient(
google::cloud::iot_v1::MakeDeviceManagerConnection(options));
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis document explains how to override the default endpoint used by the client library.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eEndpointOption\u003c/code\u003e should be used when initializing the client library to change the default endpoint.\u003c/p\u003e\n"],["\u003cp\u003eThe example code shows how to override the default endpoint for \u003ccode\u003eiot_v1::DeviceManagerClient\u003c/code\u003e using \u003ccode\u003eprivate.googleapis.com\u003c/code\u003e, which is commonly used with Private Google Access.\u003c/p\u003e\n"],["\u003cp\u003eVersion 2.15.0-rc is the latest, and there are links to previous versions of the documentation, ranging from 2.11.0 to 2.14.0.\u003c/p\u003e\n"]]],[],null,["Version 2.12.0keyboard_arrow_down\n\n- [2.15.0-rc (latest)](/cpp/docs/reference/iot/latest/iot-override-endpoint)\n- [2.14.0](/cpp/docs/reference/iot/2.14.0/iot-override-endpoint)\n- [2.13.0](/cpp/docs/reference/iot/2.13.0/iot-override-endpoint)\n- [2.12.0](/cpp/docs/reference/iot/2.12.0/iot-override-endpoint)\n- [2.11.0](/cpp/docs/reference/iot/2.11.0/iot-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 `iot_v1::DeviceManagerClient`: \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::iot_v1::DeviceManagerClient(\n google::cloud::iot_v1::MakeDeviceManagerConnection(options));"]]