private function getApiUserRole()
    {
        $apiUserRole = null;

        $container = $this->_context->getApplication()->getContainer();
        if ($container->hasParameter('bbapp.securitycontext.role.apiuser')) {
            $apiUserRole = $container->getParameter('bbapp.securitycontext.role.apiuser');

            if ($container->hasParameter('bbapp.securitycontext.roles.prefix')) {
                $apiUserRole = $container->getParameter('bbapp.securitycontext.roles.prefix') . $apiUserRole;
            }
        }

        return $apiUserRole;
    }