5 Tips to Improve User Experience with NgRx
summary
NgRx code shows three practical UX fixes: use effects with concatMap and catchError before flattening so streams don’t stop and implement the error handling pattern of trigger/success/fail actions to avoid infinite spinners; treat the store (and ngrx entity adapter) as a local cache plus a meta-reducer that syncs to localStorage to load data instantly; apply optimistic updates by applying the change on the trigger action and rolling back on the error action. Rails guidance: aim for <5s on mid‑range 3G and <2s for fast loads; users overestimate passive waits by ~36%.
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chapters (7)
- 0:00Introduction and background
- 9:16NgRx use cases for UX
- 13:01Error handling techniques
- 19:53Caching with NgRx store
- 27:24Local storage for offline UX
- 29:11Optimistic UI approach
- 33:03Summary and key takeaways
