Introduction
Zustand's persist middleware lets you automatically save and restore state in local storage. Ideal for maintaining sessions, preferences, and offline data.
Basic Setup
Import persist from zustand/middleware and wrap your store. It uses localStorage by default. State is automatically saved on every change.
Custom Storage
Use AsyncStorage for React Native, IndexedDB for large volumes, or cookieStorage for SSR compatibility.
Partialize and Merge
Use partialize to choose which parts of state to persist. Use merge to control how saved state merges with initial state.
Versioning
version and migrate allow handling state structure changes between application versions.
Use Cases
Persistent shopping cart, theme preferences, last step of a multi-step form, and session tokens.
Conclusion
Zustand Persist simplifies state persistence. At Vynta, we use it to create seamless experiences where users pick up where they left off.