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"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe webpage provides a list of available versions for the Web Security Scanner, ranging from the latest release candidate version 2.37.0-rc down to version 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe primary focus of the content is on how to override default authentication credentials when interacting with Google Cloud Services.\u003c/p\u003e\n"],["\u003cp\u003eUsers can override the default credentials by utilizing the \u003ccode\u003eUnifiedCredentialsOption\u003c/code\u003e, allowing for the specification of service account keys, among other methods.\u003c/p\u003e\n"],["\u003cp\u003eThe example code demonstrates how to load a service account key from a file and use it for authentication with the Web Security Scanner client.\u003c/p\u003e\n"],["\u003cp\u003eFor further details and best practices related to managing service account keys and authentication components, users can consult the linked guides provided in the content.\u003c/p\u003e\n"]]],[],null,[]]
