LESSON 4.3
Optimistic updates
Learn key techniques and workflows in Next.js App Router in Depth.
8m
intermediate
7,874 students
Overview
Optimistic UI shows the expected result immediately and reconciles when the server answers. The interesting part is what happens when the server disagrees.
In this lesson you will:
- Render the expected state before the server confirms
- Roll back cleanly when the action fails
- Keep optimistic state scoped to the component that owns it
Pro Tip
Use caching and revalidation wisely to ensure your app stays fast and data remains fresh without unnecessary requests.