useCartAddDiscount

A cart hook that helps you easily add a discount code an existing cart

// import
import { useCartAddDiscount } from '@backpackjs/storefront';

// instantiation
const { cartAddDiscount, ...addDiscountStatus } = useCartAddDiscount();

// use
const cartWithDiscount = await cartAddDiscount({
  discountCode: 'A-VALID-DISCOUNT-CODE'
})

discountCode	A valid discount code e.g 10-PERCENT-OFF