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::securitycenter_v1::SecurityCenterClient(
google::cloud::securitycenter_v1::MakeSecurityCenterConnection(
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 2025-03-21 UTC."],[[["This webpage provides documentation for various versions of the Security Center client library, ranging from version 2.11.0 up to the release candidate 2.37.0-rc."],["The content details how to override the default authentication credentials used by the client libraries with specific options like `UnifiedCredentialsOption`."],["The example code demonstrates how to load credentials from a service account key file to authenticate with Google Cloud Services, which may be needed instead of using Application Default Credentials."],["There are also links provided for client classes such as [`securitycenter_v1::SecurityCenterClient`](/cpp/docs/reference/securitycenter/2.27.0/securitycenter_v1_1_1SecurityCenterClient-service-account-snippet) and [`securitycenter_v2::SecurityCenterClient`](/cpp/docs/reference/securitycenter/2.27.0/securitycenter_v2_1_1SecurityCenterClient-service-account-snippet) to find related code examples."],["The webpage advises consulting the \"Best practices for managing service account keys\" guide for detailed information and also references the \"Authentication Components\" section for more information on creating `Credentials` objects."]]],[]]
