useCartAddItems

A cart hook that helps you easily add multiple items to the cart with a given quantity

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

// instantiation
const { cartAddItems, ...addItemsStatus } = useCartAddItems();

// use
const updatedCart = await cartAddItems(lineItems)

lineItems

An array of line items [{...lineItem}]

lineItem object

variantId	A valid storefront variant Id e.g Z2lkOi8vc2hvcGlmeS9Qcm9kdWN0VmFyaWFudC8yOTEwNjAyMjc5Mg==
quantity	An item quantity (Integer)
customAttributes(optional)	line item custom attributes array [ { key: 'attrKey', value: 'attrValue' }, ... ]