We’re on Plus and have a customized checkout.liquid wherein we offer an in-checkout product upsell. This works by using cart.js endpoints to add the product/variant to cart. However, we noticed when creating and redirecting to checkouts created using the Storefront API, cart.js still updates the mai…

How can I manipulate a checkout created with the Storefront API using cart.js when in checkout flow?

CalD October 22, 2020, 9:58pm 2

Have you looked at the the checkoutLineItemsReplace (/Add/Remove/Update) mutations in the Storefront API yet?

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