Drupalize.Me: Part 3: Routing in Drupal (Spotlight on Symfony in Drupal)

In this installment of our series on Symfony's role in Drupal, we're focusing on the Routing component. Even if it may seem simple looking from the outside, routing in Drupal is a complex task with lots of customized parts. The routing component's job is to match incoming requests to the correct controller, which is then responsible for building the response. Let's take a high-level glance at how Drupal has built upon Symfony's Routing component.