Looking for docs on Traefik routing decisions

Hey folks!

I'm trying to learn a little bit more about how the Traefik ingress works in Kubernetes. Very specifically I'm trying to see how traefik makes routing decisions and if it has a setting similar to this setting in nginx.

I want to tell Traefik to route to a service instead of a particular endpoint. I was digging in the docs and I couldn't see much that helped explain the default routing behavior or how to override it, provided that's possible and or necessary. Thanks in advance for your help and would greatly appreciate any docs you can point me at.