How Django's URL Dispatcher Works: A Deep Dive for Backend Devs
URL Dispatching - The Entry Point The Core Concept Think of URL dispatching as your application's reception desk . When a request arrives at your Django server, the URL dispatcher's job is to: Look at the request URL (e.g., /blog/posts/123/ ) Match it against predifined patterns Route it to the correct view function How Django Actually Processes URLs Let's trace what happens when someone visits https://yoursite.com/blog/post/42/ Deep Dive: Path Coverters This is where most beginners get confused, but it's crucial for production apps: What Actually Happens in Memory When you write <int:pk> , Django creates a converter object that: Checks if the URL segment can be converted to an integer If yes, passes it to your view as an integer (not a string!) If no, skips this pettern and tries the next one Real Production Example Here's how we structre URL dispatching in real Django projects;