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::webrisk_v1::WebRiskServiceClient(
google::cloud::webrisk_v1::MakeWebRiskServiceConnection(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 2025-05-07 UTC."],[[["This page provides a list of WebRisk C++ client library versions, ranging from 2.11.0 to 2.37.0-rc, with the latest version being 2.37.0-rc."],["The content explains how to override the default authentication credentials used by the client libraries by using the `UnifiedCredentialsOption`."],["The guide provides a code example demonstrating how to load a service account key file for explicit authentication, using the `MakeServiceAccountCredentials` function."],["It's stated that best practices for service account key management should be reviewed as the example provided is simplified for ease of understanding."],["Further information on authentication components, including `google::cloud::Credentials` object creation, can be found in the provided \"Authentication Components\" documentation link."]]],[]]
