Imported Google Group message.
Sender:Martin Buhr.
Date:Friday, 15 January 2016 20:12:40 UTC.
Hi,
It looks like you’re missing a component 
Tyk is a gateway that can sit in front of one of your existing services (usually already exposing a REST API), and takes care of all the heavy lifting of auth, rate limiting, throttling, ACL and monitoring.
So to use Tyk, you will need to write your business logic in some other language or framework and then point Tyk at the API that gets exposed.
You could use our Virtual Endpoints feature to get some minimal logic going, but it’s limited to the JS sandbox.
Hope that helps,
Cheers,
Martin