gistfile1.txt

const INITIAL_STATE = {
  orderList: {},
  isRetrievingOrder: false,
  errorRetrievingOrder: false,
  errorRetrievingOrderMessage: null,
  isSavingOrder: false,
  errorSavingOrder: false,
  errorSavingOrderMessage: null,
  isCancellingOrder: false,
  errorCancellingOrder: false,
  errorCancellingOrderMessage: null,
};

export default (state = INITIAL_STATE, action) => {
  switch (action.type) {
    case RETRIEVE_ORDERS:
      return {
        ...state,
        isRetrievingOrder: true,
        errorRetrievingOrder: false,
      };
    case RETRIEVE_ORDERS_SUCCESS: {
      const savedOrders = action.payload;
      
    //...do soemthing with your payload

      return {
        ...state,
        orderList,
        isRetrievingOrder: false,
        errorRetrievingOrder: false,
      };
    }
    
        default:
      return state;
  }