Building Shopify grocery product cards with unit pricing and Ajax Cart

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A grocery product card must both show comparable prices and send the correct variant and quantity to the cart. The article offers a Shopify Liquid template that selects the current or first available variant and displays its unit price with measurement. It advises setting total and base measurements on the product or variant and keeping one comparison unit within each category. For adding items, it describes an asynchronous function that posts selections to the Cart API, reads back the latest cart, and reports partial-stock or network failures to the shopper. Developers are told to disable the submit button during the request and to test cases such as variants already in the cart, partial stock, and network interruptions.

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