Does the Google API CPP Client Library support Authorization using Service Account?
I could not find an example of how to use the Service Account when using the CPP Client library from https://github.com/google/google-api-cpp-client/
The sample available only demonstrate using Client Secret for installed application
flow_.reset(OAuth2AuthorizationFlow::MakeFlowFromClientSecretsPath( client_secrets_file, config_->NewDefaultTransportOrDie(), &status));