After getting over my fixation, I saw I was looking in the wrong place.
I found two ways to do that, I'd appreciate a honest opinion about them.
Way one: with a service sending to the localhost loopback.
Although this way looks cleaner in the diagram - I have a gut feeling it's more dirty on the network.
Way Two: add a router per endpoint.
At least, by theory.
Once I get it working I'll commit this to the repo. If I get both ways working - it will be two different branches.
Edited:
It worked!
I committed to master the solution based on a dynamic router per endpoint that uses that service, I may be convinced to try the other too if experts here will advice so, but for now I go with my gut feelings 
Any expert comment will be appreciated