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 Binary Authorization C++ client library, ranging from version 2.11.0 up to the latest release candidate, 2.37.0-rc."],["The client libraries primarily use Application Default Credentials for authenticating with Google Cloud Services, but this default can be overridden when needed."],["You can override the default authentication method by using the `UnifiedCredentialsOption`, such as loading a service account key file, as demonstrated in the provided example."],["Examples of how to override authentication for specific client classes like `BinauthzManagementServiceV1Client`, `SystemPolicyV1Client`, and `ValidationHelperV1Client` are linked in this document."],["For more details on managing service account keys or creating credentials objects, you can consult the linked guides on best practices and authentication components."]]],[]]
