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 documents various versions of the Web Security Scanner C++ client library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The library, by default, uses Application Default Credentials for authenticating with Google Cloud Services, but this can be overridden when necessary."],["Overriding the default authentication can be done by providing the `UnifiedCredentialsOption`, such as loading a service account key file as shown in the example."],["Users should refer to the \"Best practices for managing service account keys\" guide for more detailed information on managing service account keys securely."],["The \"Authentication Components\" section provides additional information on the `google::cloud::Credentials` objects and the factory functions to create them."]]],[]]
