React Application Architecture For Production Pdf //top\\ -

path: '/', element: <Layout />, errorElement: <ErrorBoundary />, children: [

shared/api/ ├── client.ts # axios instance with baseURL, interceptors ├── endpoints/ │ ├── users.ts │ └── products.ts └── types.ts # Generic API response types // shared/api/client.ts import axios from 'axios'; export const apiClient = axios.create( baseURL: import.meta.env.VITE_API_URL, timeout: 10000, ); react application architecture for production pdf

export const router = createBrowserRouter([ Both should depend on abstractions (hooks/services)

| Principle | Description | |-----------|-------------| | | UI components should not know about data fetching or business logic. | | Single Responsibility | Each file/folder should have one reason to change. | | Dependency Inversion | High-level modules (pages) should not depend on low-level modules (API utils). Both should depend on abstractions (hooks/services). | | Colocation | Keep styles, tests, and utilities close to the components that use them. | | Lazy Loading | Never load code the user doesn't need immediately. | 3. Folder Structure by Features Avoid organizing by file type (e.g., components/ , containers/ , services/ ). Instead, use feature-based organization : but at scale

export const useAuthStore = create<AuthStore>((set) => ( user: null, isAuthenticated: false, login: (user) => set( user, isAuthenticated: true ), logout: () => set( user: null, isAuthenticated: false ), )); Never call fetch or axios directly inside a component. Build a structured data layer:

Tailwind is fine for prototypes, but at scale, CSS Modules provide better maintainability, no class name collisions, and easier theming. 8. Security and Error Boundaries Error Boundaries Catch JavaScript errors in components without crashing the whole app: