
ShopSphere is a full-featured e-commerce platform with product catalog, cart, Stripe checkout, order tracking, and an admin dashboard for inventory and sales analytics.
Keeping the cart state consistent across tabs and after page reloads needed localStorage hydration with Redux. Stripe webhook handling for asynchronous payment events had to be idempotent to avoid double-processing, and image-heavy product pages required lazy loading and responsive images to keep the LCP under control.
Implement a product recommendation engine based on browsing history, add wishlist sharing, and migrate the admin dashboard to server components for faster initial load.