zustand-stores

name	zustand-stores
description	Zustand state management patterns - auth store with SSR-safe initialization and store best practices Use when this capability is needed.
metadata	{"author":"aexol-studio"}

When to Use Zustand

Zustand is for shared client state — UI preferences, sidebar collapsed, feature toggles, etc.

Auth state is managed by React Query (queryKeys.me cache + useAuth() hook) — not Zustand.

Store Pattern

import { create } from 'zustand';

interface UIState {
  sidebarOpen: boolean;
  toggleSidebar: () => void;
}

export const useUIStore = create<UIState>()((set) => ({
  sidebarOpen: true,
  toggleSidebar: () => set((s) => ({ sidebarOpen: !s.sidebarOpen })),
}));

Rules

• Check typeof window !== 'undefined' before accessing browser globals
• Use selectors: useUIStore((s) => s.sidebarOpen), never destructure the whole store
• Access outside React: useUIStore.getState()

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