> This decoupling of MVC is well-supported, but you then find that you're using Rails as an API alongside being a web application; It's not a clean definition o

> This decoupling of MVC is well-supported, but you then find that you're using Rails as an API alongside being a web application; It's not a clean definition of responsibilities. I'm not so sure about this part. To me, it feels like the difference between a web app and an API is simply the fact that an API returns machine readable data (be it JSON, or XML, or whatever). The JSON/XML/etc is just another way of presenting the same data - you should still be able to share a lot of the M and C between your two Vs.