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::talent_v4::CompanyServiceClient(
google::cloud::talent_v4::MakeCompanyServiceConnection(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 document provides versioned documentation for the Google Cloud C++ Client Library related to talent, with versions ranging from 2.11.0 to 2.37.0-rc, the latter being the latest release candidate."],["The default authentication for Google Cloud services in client libraries uses Application Default Credentials, but you can override this behavior."],["To override default credentials, use the `UnifiedCredentialsOption` and load a service account key file as shown in the provided example code."],["Specific examples for overriding authentication are provided for `talent_v4::CompanyServiceClient`, `talent_v4::CompletionClient`, `talent_v4::EventServiceClient`, `talent_v4::JobServiceClient`, and `talent_v4::TenantServiceClient`."],["Refer to the linked \"Best practices for managing service account keys\" and \"Authentication Components\" guides for more information on service account keys and credential objects."]]],[]]