1.3 KiB
1.3 KiB
The useCartLinesAddCallback hook returns a callback that can be used to add lines to a cart. If a cart doesn't
already exist, then it will create the cart for you. It must be a descendent of a CartProvider component.
Example code
import {useCartLinesAddCallback} from '@shopify/hydrogen';
export function CustomAddToCartButton() {
const addLines = useCartLinesAddCallback();
return (
<button
onClick={() => {
addLines([
{
quantity: 1,
merchandiseId: '1234',
},
]);
}}
>
Add to cart
</button>
);
}
Return value
A callback to add new lines to a cart. The callback expects one argument that corresponds to the input you would provide to the Storefront API's cartLinesAdd mutation.