How to add an api to a Rails application?

Question

Ruby on Rails

I made an application on Ruby On Rails, authorization is carried out using the Devise gem. Tell me how to add authorization through api? I tried to dig in the direction of devise_token_auth, but there is either a conflict of migrations or everything is given through json. The moment with rack-cors is also interesting, how to set everything up correctly in terms of security?

Answer 1

How is the API implemented?
Controllers#actions, Grape, something else?

Answer 2

For api, generate tokens yourself.