// _getShopData, _getIemData, _getTestimonial - async funcs

getData() {
    return this._getShopData().then(shop =>
      Promise.all([this._getIemData(this._MALL_ID), this._getTestimonial(shop.shop_url)]).then(
        ([item, testimonial]) => {
          return {
            item: {
              ...item,
              shop_info: shop
            },
            shop: { ...shop, testimonial: testimonial }
          };
        }
      )
    );
  }