Suspense for Data Fetching

React Suspense simplifies how you handle asynchronous data by letting components declare what data they need and when to show a fallback UI. Instead of manually managing loading flags, errors, and retries across component trees, Suspense coordinates the entire flow—pausing rendering until data is ready, then seamlessly switching to the final UI.

Since React 19, the new use hook makes reading promises inside components straightforward, while Suspense boundaries automatically orchestrate nested fallbacks and streaming patterns. This removes boilerplate and lets you write cleaner, more declarative data-driven components.

This series covers the complete Suspense ecosystem: from building your first boundary and understanding how use works, through suspense-enabled libraries and real production patterns like streaming HTML, error boundaries, and selective hydration. You'll learn why Suspense is the modern replacement for useState(loading) and how to migrate existing apps to cleaner concurrent patterns.

Articles in this series​

Articles in this series