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Fetch and Display a Movie List
Fetch data from a public API and render it as a responsive grid.
Search, Filter, and Paginate API Data
Add complex user interactions to a data-heavy dashboard.
Optimistic Updates & Local Caching
Make an app feel instantly responsive by mastering client-side caching.
Robust API Data Fetching, Caching & Error Handling
Production web applications must handle asynchronous data loading gracefully. Employers look for developers who manage loading states, race conditions, stale-while-revalidate caching, automatic retries, and user-friendly error boundaries without crashing the user interface.
1. Data Fetching & Caching Strategy Doc
Architectural breakdown comparing custom fetch hooks vs TanStack Query (React Query) and SWR caching mechanisms.
2. Custom Hook & Data Fetching Module
TypeScript custom hook featuring loading indicators, refetching on window focus, optimistic updates, and exponential backoff.
3. Error Boundary & Skeleton UI Demo
Skeleton loader component and React Error Boundary wrapping the data grid during network failures or API rate limiting.
Frequently Asked Questions (API Data Fetching)
What is Stale-While-Revalidate (SWR) caching?
SWR is a HTTP cache invalidation strategy where the client first returns cached (stale) data immediately, then dispatches a fetch request (revalidates) in the background to update the cache.
How do you prevent race conditions during fast search inputs?
Race conditions occur when an earlier API request resolves after a later request. You prevent this using AbortController signals to cancel pending fetch calls when query state changes, or debouncing input handlers.
Why use TanStack Query instead of plain useEffect + fetch?
Plain useEffect fetches lack built-in request deduplication, cache sharing across components, automatic background revalidation, retry mechanisms, and pagination state management.
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