Routing, Navigation, and Single-Page Application Structure
Organize React applications across multiple screens with routing, layouts, navigation flow, and URL-driven state.
Inside this chapter
- Why Routing Matters
- Basic Route Mapping
- Layouts and Nested Routes
- Protected and Role-Based Areas
- Real Example
Series navigation
Study the chapters in order for the clearest path from React fundamentals to advanced architecture, optimization, testing, and product-ready frontend engineering. Use the navigation at the bottom to move smoothly through the full tutorial series.
Why Routing Matters
Without routing, a React app is just one screen with changing fragments. Routing brings URL-based navigation so users can bookmark pages, move with browser history, share links, and understand the application structure more naturally.
Basic Route Mapping
<Routes>
<Route path="/" element={<Home />} />
<Route path="/courses" element={<Courses />} />
<Route path="/courses/:id" element={<CourseDetails />} />
</Routes>Layouts and Nested Routes
Many applications share common navigation, sidebars, headers, or footers across route groups. Nested layouts prevent duplication and keep route-based UI structure maintainable.
Protected and Role-Based Areas
Real applications often restrict certain screens to authenticated or privileged users. Routing logic may work with auth state, permissions, and redirect flow to guide access safely.
Real Example
An educational platform may route between landing pages, course catalogs, lesson pages, student profiles, billing screens, and admin-only management areas. Routing reflects the product’s information architecture.