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 provides documentation for overriding default authentication credentials when using Google Cloud client libraries, specifically within the context of `securitycentermanagement`."],["The client libraries typically rely on Application Default Credentials (ADC), but you can customize this by providing the `UnifiedCredentialsOption`."],["The most recent version that is documented is version `2.37.0-rc`, however there are multiple other versions documented ranging from `2.36.0` down to `2.22.1`."],["An example demonstrates loading a service account key file to override default credentials, using `MakeServiceAccountCredentials` within the options."],["For more details on managing service account keys and creating `Credentials` objects, you can refer to the linked guides on best practices and authentication components, respectively."]]],[]]
