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::websecurityscanner_v1::WebSecurityScannerClient(
google::cloud::websecurityscanner_v1::MakeWebSecurityScannerConnection(
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 2025-03-21 UTC."],[[["This page provides a comprehensive list of Web Security Scanner client library versions, ranging from version 2.11.0 up to the latest release candidate, 2.37.0-rc."],["The content explains how to override the default authentication credentials used by the client libraries via the `UnifiedCredentialsOption`, particularly by loading a service account key file."],["Application Default Credentials are used to authenticate with Google Cloud Services, however they can be changed by providing the `UnifiedCredentialsOption`."],["The provided code snippet demonstrates how to explicitly load a service account key file to override the default credentials, using `MakeServiceAccountCredentials`."],["Additional resources are linked, including a guide on best practices for managing service account keys and information on authentication components for creating `google::cloud::Credentials` objects."]]],[]]
