Managing SvelteKit and Shopify cart interactions

This text provides a comprehensive guide on implementing cart functionality in an ecommerce site using SvelteKit and the Shopify Storefront API, focusing on adding and removing products from the cart. It describes how to create an endpoint to handle the addition of items to a cart, utilizing Svelte's API routes to post product details and manage cart operations, including creating a new cart if none exists. The explanation includes setting up a Header component to display the cart count and a Cart page to view items, with detailed instructions for using utility functions such as `createCartWithItem` and `addItemToCart`. Additionally, it covers removing items from the cart by posting requests to a designated endpoint and updating the cart in local storage, with examples provided throughout the text. The tutorial concludes with suggestions for exploring the project repository and using LogRocket for monitoring user interactions on ecommerce platforms.