Unless otherwise configured, the client libraries use Application Default Credentials to authenticate with Google Cloud Services. While this works for most applications, in some cases you may need to override this default. You can do so by providing the UnifiedCredentialsOption The following example shows how to explicitly load a service account key file:
[](std::string const& keyfile) {
auto is = std::ifstream(keyfile);
is.exceptions(std::ios::badbit); // Minimal error handling in examples
auto contents = std::string(std::istreambuf_iterator<char>(is.rdbuf()), {});
auto options =
google::cloud::Options{}.set<google::cloud::UnifiedCredentialsOption>(
google::cloud::MakeServiceAccountCredentials(contents));
return google::cloud::cloudcontrolspartner_v1::
CloudControlsPartnerCoreClient(
google::cloud::cloudcontrolspartner_v1::
MakeCloudControlsPartnerCoreConnection(options));
}
Follow these links to find examples for other *Client classes:
[[["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 2025-03-05 UTC."],[[["This page provides documentation for various versions of the `cloudcontrolspartner` C++ library, ranging from version 2.23.0 up to the latest release candidate 2.37.0-rc."],["The library defaults to using Application Default Credentials for Google Cloud service authentication, but this can be overridden when necessary."],["Overriding the default authentication is demonstrated using `UnifiedCredentialsOption` and loading a service account key file."],["Examples for overriding authentication are provided for `CloudControlsPartnerCoreClient` and `CloudControlsPartnerMonitoringClient`."],["For secure management of service account keys, it is recommended to consult the \"Best practices for managing service account keys\" guide and for more information on factory functions to create credentials objects, refer to the authentication components."]]],[]]