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 webpage provides documentation for various versions of the Web Risk C++ client library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The client libraries default to using Application Default Credentials for authentication with Google Cloud Services, but this can be overridden if necessary."],["You can override the default authentication by utilizing the UnifiedCredentialsOption, such as loading a service account key file directly into your application."],["The provided code example demonstrates how to explicitly load a service account key file to override default authentication settings and create a WebRiskServiceClient."],["The documentation also provides a link to further information regarding managing service account keys, and the authentication components to create [`google::cloud::Credentials`] objects."]]],[]]
