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::dlp_v2::DlpServiceClient(
google::cloud::dlp_v2::MakeDlpServiceConnection(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 2025-03-05 UTC."],[[["This page provides documentation for various versions of the C++ DLP (Data Loss Prevention) API, ranging from version 2.11.0 to the latest release candidate 2.37.0-rc."],["The documentation outlines how to override the default authentication credentials, which use Application Default Credentials, to authenticate with Google Cloud Services."],["Overriding the default credentials can be done by utilizing the `UnifiedCredentialsOption`, and one such method demonstrated involves explicitly loading a service account key file."],["The provided code example illustrates the process of loading a service account key file and creating a `DlpServiceClient` with custom authentication options."],["Additional information regarding service account keys and authentication components can be found in the linked resources, such as the \"Best practices for managing service account keys\" and \"Authentication Components\" guides."]]],[]]
