What's /app/apis for?

In my time learning Rails, I don’t think I’ve come across any
code/samples/tutorials that put stuff in /app/apis. What’s it used for?
(Mine’s empty.)

thanks
csn

csn wrote:

In my time learning Rails, I don’t think I’ve come across any
code/samples/tutorials that put stuff in /app/apis. What’s it used for?
(Mine’s empty.)

thanks
csn

webservices