old-web/frontend-react/src/reducer.js

import category from "./reducers/category";
import subcategory from "./reducers/subcategory";
import options from "./reducers/options";
import items from "./reducers/items";
import modal from "./reducers/modal";
import userdata from "./reducers/userdata";
import { combineReducers } from "redux";

export default combineReducers({
  category,
  subcategory,
  options,
  items,
  modal,
  userdata
});