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::securitycentermanagement_v1::
SecurityCenterManagementClient(
google::cloud::securitycentermanagement_v1::
MakeSecurityCenterManagementConnection(options));
}
[[["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 2025-04-23 UTC."],[[["This page lists documentation for various versions of the Security Center Management feature, ranging from version 2.22.1 up to the latest release candidate, 2.37.0-rc."],["The content explains how to override the default authentication credentials used by client libraries through the `UnifiedCredentialsOption`, which allows you to specify a service account key file."],["The example code demonstrates how to load a service account key file and use it to create a `SecurityCenterManagementClient` with custom authentication options."],["It is important to review best practices for service account key management, as well as the linked documentation on authentication components for creating `google::cloud::Credentials` objects."]]],[]]
