solidstart-optimistic-ui

To implement optimistic UI in SolidStart, combine server-fetched data with pending submission inputs using the `useSubmissions` hook from `@solidjs/router`, filtering for pending states to display immediate visual feedback during data mutations.

Optimistic UI is a pattern providing instant UI feedback after data mutations by displaying changes before the server responds. You need it in SolidJS applications to improve perceived performance and avoid waiting for page refreshes after form submissions.

Yes, the SolidStart optimistic UI pattern supports actions with single arguments, multiple arguments, and FormData, allowing flexible integration with various form submission types and data mutation structures within your application.

SolidStart handles rollbacks by automatically reverting the UI to its previous state when a submission fails, filtering out the pending submission data and gracefully handling errors to maintain data consistency.

Yes, you can display pending items immediately by combining server data with submission inputs from the `useSubmissions` hook, showing new items with a pending indicator rather than waiting for a page re-fetch.

Limitations include relying entirely on the `useSubmissions` hook from `@solidjs/router` for state tracking, meaning complex custom mutation states outside of router actions may not integrate seamlessly with this optimistic UI filtering approach.