Earlier I was looking for an alternative to Symfony1’s routing.load_configuration event, so I could add some extra routes on-the-fly. This may be useful, when routes change in more ways than only variable request parameters as part of routes do (you know, like /blog/{id}). I got it completely wrong in my previous post about this subject. Of course, adding extra routes is a matter of creating a custom routing loader, and tell the framework about it using the service container. So, there we go.

Symfony 1 had the lovely routing.load_configuration event. Listening to this event enabled the developer to add some routes dynamically, “on-the-fly”. Plugins used to do this most of the time. I was looking for a way to accomplish the same in Symfony 2. I’ve used the following as a solution.

We are going to listen to the kernel.request event, but we make sure we get notified in an early stage, so that the router hasn’t done it’s magic yet. Then we quickly add some extra routes to the RouteCollection.