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::advisorynotifications_v1::
AdvisoryNotificationsServiceClient(
google::cloud::advisorynotifications_v1::
MakeAdvisoryNotificationsServiceConnection(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 webpage provides a list of versioned documentation for overriding authentication in the context of Advisory Notifications, ranging from version 2.11.0 up to the latest release candidate, 2.37.0-rc."],["The documentation explains how to override the default Application Default Credentials (ADC) used by client libraries to authenticate with Google Cloud Services."],["Overriding the authentication credentials can be achieved by utilizing the `UnifiedCredentialsOption`, as demonstrated with an example of loading a service account key file."],["Users can find additional information regarding authentication components and the creation of `google::cloud::Credentials` objects in the linked \"Authentication Components\" section."],["There is also a link provided in order to read up on the best practices for managing service account keys."]]],[]]
