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 details how to override the default Application Default Credentials (ADC) used by client libraries for authenticating with Google Cloud Services."],["You can override the default credentials by providing a `UnifiedCredentialsOption`, as demonstrated by the example showing how to load a service account key file."],["The latest version of the cloud control partner documentation is `2.37.0-rc` with other available versions ranging from `2.36.0` down to `2.23.0`."],["Examples are provided for the `CloudControlsPartnerCoreClient` and `CloudControlsPartnerMonitoringClient` classes, showcasing how to apply service account credentials."],["For best practices and further information, users are encouraged to consult the guide on managing service account keys and explore the authentication components documentation."]]],[]]