What is useOptimistic? useOptimistic is a React Hook for optimistic UI updates — where you assume an action will succeed and reflect it immediately in the interface. Instead of waiting for an API response: - user clicks → UI updates instantly - request runs in the background - final state syncs when response arrives const [optimisticState, setOptimisticState] = useOptimistic(initialState); Under the hood, React temporarily renders this “optimistic” state while the async action is in progress, then replaces it with the real data once it’s ready. There is the example on the screenshot and there: - click -> count increases immediatly - request runs in background - final state replaces optimistic one It’s a small API, but a big UX upgrade. #react #frontend #webdev #javascript #reactjs #performance
Nice addition to the toolbox 👍 What I like about use Optimistic is that it forces you to think in terms of failure scenarios, not just happy paths. The optimistic update itself is easy - the hard part is handling rollback correctly when the request fails or returns something unexpected. In real systems, it shines for things like likes, counters, quick edits - where eventual consistency is acceptable. But for anything with strong consistency requirements (payments, inventory, etc.), you still need extra safeguards or even avoid optimistic updates entirely. So yeah - great UX win, but only when the domain actually tolerates being “wrong for a moment.”
What's interesting about useOptimistic is that it makes this pattern more explicit and safer compared to ad-hoc state hacks people used before. How do you usually handle errors cases with optimistic updates? Maybe silent rollback, user notification, or some kind of retry mechanism?
What’s interesting is that optimistic UI shifts the default experience from “wait and confirm” to “act and reconcile,” which subtly changes how users perceive system speed and reliability. Roman Pokhabov
Thanks for sharing! Do you think there are cases where optimistic updates can be redundant or even worsen the UX?
The gap between "waiting for server" and "instant feedback" is where user perception of app quality lives. useOptimistic is small API surface but it addresses exactly the interactions people notice most.
Great hook for UX users feel instant feedback while the real request completes in the background.
Optimistic UI makes apps feel instant — just important to handle failures cleanly (rollback or show error), otherwise the UI can lie to the user.
Great explanation. Optimistic UI is one of those patterns that significantly improves the user experience — the interface feels instant even when the network is slow. Good to see React making this easier to implement with a dedicated hook.
This hook was a lifesaver for me when building a decentralized donation platform, where waiting for a transaction to be indexed by a Subgraph usually creates a 5-10 second "ghost" delay. By using useOptimistic, I could show the user’s comment and contribution in the feed immediately after they signed the transaction in their wallet, rather than making them stare at a loading spinner. It bridged that awkward gap between the blockchain's confirmation and the UI update, making the whole DApp feel as fast as a traditional web app.