public List <string> GetServiceRoles(string userName, [FromUri] string[] providerCodes)
 {
     try
     {
         var metaServiceClient = new MetaServiceClient("BasicHttpBinding_IMetaService");
         var serviceRoles      = metaServiceClient.GetServiceRolesAfterGetProvider(userName, providerCodes);
         return(serviceRoles.ToList());
     }
     catch (Exception ex)
     {
         _logger.Error("Error in Api GetServiceRoles", ex, "ErrorOnGetServiceRoles");
         throw new FaultException(ex.Message);
     }
 }