anchor.diff:          {ok, _} ->
               case api_help:is_subs(ReqData) or api_help:is_unsubs(ReqData) of
                   false ->
  -                    Id = api_help:id_from_path(ReqData),
  +                    Id = id_from_path(ReqData),
                       {UserJson,_,_} = api_help:json_handler(ReqData, State),
                       %check if doc already exists
                       case {api_help:do_any_field_exist(UserJson,?RESTRCITEDUPDATEUSERS),api_help:do_only_fields_exist(UserJson,?ACCEPTEDFIELDSUSERS)} of
  
positive.code: 
  -spec get_user_model(ReqData::tuple(), State::string()) -> {list(), tuple(), string()}.
  get_user_model(ReqData, State) ->
      case api_help:id_from_path(ReqData) of
          undefined -> % Get all users
              case wrq:get_qs_value("size",ReqData) of
                  undefined ->
  
negative.code: 
          AccToken -> {ok, AccToken, JSON}
      end.
  
  
  -spec id_from_path(ReqData::tuple()) -> string().
  id_from_path(ReqData) ->
      case api_help:parse_path(wrq:path(ReqData)) of
          % [error]               -> undefined;
          [{"users", Id}]       -> string:to_lower(Id);
          [{"users", Id}, _]    -> string:to_lower(Id);
          _                     -> undefined
      end.
  