URL Routing
URL routing is a web development concept that maps URLs (Uniform Resource Locators) to specific handlers or controllers in an application, typically to serve different content or functionality based on the URL path. It defines how incoming HTTP requests are directed to the appropriate code, such as rendering a webpage, processing form data, or returning an API response. This is fundamental in frameworks and libraries for building dynamic, multi-page web applications and APIs.
Developers should learn URL routing to create user-friendly, organized web applications where URLs correspond to logical sections or actions, improving navigation and SEO. It is essential when building websites with multiple pages, RESTful APIs, or single-page applications (SPAs) that require client-side routing for seamless user experiences without full page reloads. For example, in e-commerce sites, routing maps URLs like '/products/123' to product details pages.