# ๐ React Use Anywhere
[](https://www.npmjs.com/package/react-use-anywhere)
[](https://www.typescriptlang.org/)
[](https://opensource.org/licenses/MIT)
[](https://bundlephobia.com/package/react-use-anywhere)
[](https://reactjs.org/)
**Use React hooks anywhere in your codebase - services, utilities, business logic. Build clean, testable architecture with zero boilerplate.**
---
## ๐ฏ The Problem Every React Developer Faces
```typescript
// โ This doesn't work in React
export const authService = {
logout: () => {
const navigate = useNavigate(); // Error: hooks only work in components!
clearAuth();
navigate('/login');
},
};
```
**Sound familiar?** You're forced to:
- ๐คฎ Pass callbacks through endless props
- ๐ต Mix business logic with UI components
- ๐คข Create complex context patterns
- ๐ค Duplicate logic everywhere
## โจ The Solution
```typescript
// โ
This works perfectly!
import { createSingletonService } from 'react-use-anywhere';
export const authService = createSingletonService('auth');
export const navService = createSingletonService('navigate');
export const logout = () => {
authService.use((auth) => auth.logout());
navService.use((navigate) => navigate('/login'));
};
```
**Call `logout()` from anywhere** - services, utilities, API clients, business logic. ๐
---
## โก Quick Start (2 Minutes)
### 1. Install
```bash
npm install react-use-anywhere
```
### 2. Wrap Your App
```tsx
import { HookProvider } from 'react-use-anywhere';
import { useNavigate } from 'react-router-dom';
function App() {
return (
);
}
```
### 3. Create Services
```typescript
// services/authService.ts
import { createSingletonService } from 'react-use-anywhere';
export const authService = createSingletonService('auth');
export const navService = createSingletonService('navigate');
export const logout = () => {
authService.use((auth) => auth.logout());
navService.use((nav) => nav('/login'));
};
```
### 4. Connect in Components
```tsx
import { useHookService } from 'react-use-anywhere';
import { authService, navService, logout } from './services/authService';
function MyComponent() {
useHookService(authService, 'auth');
useHookService(navService, 'navigate');
return ;
}
```
**Done!** Now call `logout()` anywhere in your codebase! ๐
---
## ๐ฅ Real-World Examples
### Authentication with Auto-Redirect
```typescript
// services/apiService.ts
import { authService, navService } from './authService';
export const fetchData = async (endpoint: string) => {
const response = await fetch(endpoint);
if (response.status === 401) {
// Auto-logout from anywhere!
authService.use((auth) => auth.logout());
navService.use((nav) => nav('/login'));
throw new Error('Unauthorized');
}
return response.json();
};
```
### Shopping Cart with Notifications
```typescript
// services/cartService.ts
import { createSingletonService } from 'react-use-anywhere';
export const cartService = createSingletonService('cart');
export const notifyService = createSingletonService('notifications');
export const addToCart = (product: Product) => {
cartService.use((cart) => cart.addItem(product));
notifyService.use((notify) => notify.success(`${product.name} added!`));
};
export const checkout = async () => {
const items = cartService.use((cart) => cart.items) || [];
if (items.length === 0) {
notifyService.use((notify) => notify.warning('Cart is empty'));
return;
}
try {
await processPayment(items);
cartService.use((cart) => cart.clear());
navService.use((nav) => nav('/success'));
} catch (error) {
notifyService.use((notify) => notify.error('Payment failed'));
}
};
```
### Theme Management
```typescript
// services/themeService.ts
import { createSingletonService } from 'react-use-anywhere';
export const themeService = createSingletonService('theme');
export const toggleTheme = () => {
themeService.use((theme) => {
theme.toggle();
localStorage.setItem('theme', theme.current);
document.body.className = theme.current;
});
};
```
---
## ๐ Core API
### `configureLogging({ enabled: boolean })`
**New in v1.x** - Control debug logging output.
```typescript
import { configureLogging } from 'react-use-anywhere';
// Enable logging for debugging (disabled by default)
configureLogging({ enabled: true });
// Disable logging (default - keeps console clean)
configureLogging({ enabled: false });
```
**Note:** Logging only works in development mode (`NODE_ENV !== 'production'`). Logs are automatically disabled in production builds.
**Best Practices:**
- Keep disabled in production (default)
- Enable temporarily when debugging hook connections
- Use environment variables for conditional enabling
```typescript
// main.tsx - Only enable in development
if (import.meta.env.DEV) {
configureLogging({ enabled: true });
}
```
### `HookProvider`
Wrap your app to register hooks.
```tsx
import { HookProvider } from 'react-use-anywhere';
;
```
### `createSingletonService(hookName)`
Create a service to access hook values anywhere.
```typescript
import { createSingletonService } from 'react-use-anywhere';
const authService = createSingletonService('auth');
// Use it anywhere
export const checkAuth = () => {
return authService.use((auth) => auth.isAuthenticated) || false;
};
```
### `useHookService(service, hookName)`
Connect service to hook value in a component.
```tsx
import { useHookService } from 'react-use-anywhere';
function MyComponent() {
useHookService(authService, 'auth');
useHookService(navService, 'navigate');
// Now services are ready to use anywhere
return ;
}
```
### Service Methods
```typescript
const service = createSingletonService('myHook');
// Execute callback with hook value
service.use((hookValue) => {
// Do something with hookValue
return result;
});
// Get current value
const value = service.get();
// Check if ready
if (service.isReady()) {
// Service is connected
}
```
---
## ๐ก๏ธ TypeScript Support
Full type safety with automatic type inference.
```typescript
import { createSingletonService } from 'react-use-anywhere';
import type { NavigateFunction } from 'react-router-dom';
// Type is automatically inferred
const navService = createSingletonService('navigate');
// Fully typed
navService.use((navigate) => {
navigate('/home'); // TypeScript knows navigate is NavigateFunction
});
```
### Advanced Type Safety
```typescript
// Define your hook types
type AppHooks = {
navigate: () => NavigateFunction;
auth: () => AuthState;
theme: () => ThemeState;
};
// Create type-safe services
import { createStrictSingletonService } from 'react-use-anywhere';
const navService = createStrictSingletonService('navigate'); // โ
const badService = createStrictSingletonService('invalid'); // โ TypeScript Error
```
---
## ๐ Framework Compatibility
Works with **any React router or no router at all**:
### React Router
```tsx
import { useNavigate } from 'react-router-dom';
;
```
### TanStack Router
```tsx
import { useRouter } from '@tanstack/react-router';
;
```
### Next.js
```tsx
import { useRouter } from 'next/router';
;
```
### Any Custom Hook
```tsx
```
---
## ๐งช Testing
Easy to test with service mocking.
```typescript
import { resetAllServices } from 'react-use-anywhere';
describe('authService', () => {
beforeEach(() => {
resetAllServices(); // Clean slate for each test
});
it('should logout and redirect', () => {
const mockAuth = { logout: jest.fn() };
const mockNavigate = jest.fn();
authService._setValue(mockAuth);
navService._setValue(mockNavigate);
logout();
expect(mockAuth.logout).toHaveBeenCalled();
expect(mockNavigate).toHaveBeenCalledWith('/login');
});
});
```
---
## โญ Why Developers Love It
> **"Reduced our state management code by 70% and eliminated all prop drilling!"**
> _- Senior React Developer_
> **"Testing became trivial when we could mock services independently."**
> _- QA Engineer_
> **"Finally, a library that enhances React instead of fighting it!"**
> _- Tech Lead_
### Key Benefits
- ๐ฏ **Use hooks anywhere** - Services, utilities, API clients, business logic
- ๐๏ธ **Clean architecture** - Separate business logic from UI
- ๐ก๏ธ **Type-safe** - Full TypeScript support with compile-time validation
- โก **Zero boilerplate** - 3 lines to setup, infinite possibilities
- ๐ **Universal** - Works with React Router, Next.js, Remix, TanStack Router
- ๐งช **Easy testing** - Mock services, not components
- ๐ฆ **Tiny** - < 2KB gzipped, zero dependencies
- ๐ **Production-ready** - Battle-tested, no memory leaks
- ๐ **Clean console** - Logging disabled by default, enable when needed
---
## ๐ Advanced Patterns
### Composable Services
```typescript
// services/userService.ts
export const userService = createSingletonService('user');
export const getUserProfile = () => {
return userService.use((user) => user.profile) || null;
};
export const updateProfile = (data: ProfileData) => {
userService.use((user) => user.updateProfile(data));
notifyService.use((notify) => notify.success('Profile updated!'));
};
```
### Conditional Navigation
```typescript
export const navigateWithAuth = (path: string) => {
const isAuth = authService.use((auth) => auth.isAuthenticated);
if (!isAuth) {
navService.use((nav) => nav('/login'));
return false;
}
navService.use((nav) => nav(path));
return true;
};
```
### Service Composition
```typescript
export const performSecureAction = async (action: () => Promise) => {
const isAuth = authService.use((auth) => auth.isAuthenticated);
if (!isAuth) {
notifyService.use((notify) => notify.error('Please login first'));
navService.use((nav) => nav('/login'));
return;
}
try {
await action();
} catch (error) {
if (error.status === 401) {
authService.use((auth) => auth.logout());
navService.use((nav) => nav('/login'));
}
}
};
```
---
## ๐ค Contributing
Contributions are welcome! Please read our [Contributing Guide](./CONTRIBUTING.md) for details.
1. Fork the repository
2. Create your feature branch (`git checkout -b feature/amazing-feature`)
3. Commit your changes (`git commit -m 'Add amazing feature'`)
4. Push to the branch (`git push origin feature/amazing-feature`)
5. Open a Pull Request
---
## ๐ License
MIT ยฉ [Akhshy Ganesh](https://github.com/akhshyganesh)
---
## ๐ Links
- [GitHub Repository](https://github.com/akhshyganesh/react-use-anywhere)
- [npm Package](https://www.npmjs.com/package/react-use-anywhere)
- [Issue Tracker](https://github.com/akhshyganesh/react-use-anywhere/issues)
- [Changelog](./CHANGELOG.md)
---
## ๐ Support
If you find this library helpful, please consider:
- โญ Starring the repository
- ๐ Reporting bugs
- ๐ก Suggesting new features
- ๐ Improving documentation
- ๐ Sharing with others
---
**Made with โค๏ธ for the React community**