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::binaryauthorization_v1::
BinauthzManagementServiceV1Client(
google::cloud::binaryauthorization_v1::
MakeBinauthzManagementServiceV1Connection(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 2025-03-14 UTC."],[[["This page provides documentation for various versions of the C++ client library for Binary Authorization, ranging from version 2.11.0 to the latest release candidate 2.37.0-rc."],["The client libraries primarily use Application Default Credentials for authentication with Google Cloud Services, but this can be overridden."],["You can override the default authentication by utilizing the `UnifiedCredentialsOption` and providing a service account key file, as demonstrated in the example."],["The documentation also includes examples for `BinauthzManagementServiceV1Client`, `SystemPolicyV1Client`, and `ValidationHelperV1Client`, demonstrating how to load a service account key file."],["For further information about managing service account keys and creating `google::cloud::Credentials` objects, you can refer to the linked \"Best practices\" guide and \"Authentication Components\" section respectively."]]],[]]
