How to make Devise authentication respond to JSON only?

Question

How to disable in Devise handling of HTML and XML requests and leave JSON only?

Answer 1

I imagine you could override the Devise Controllers:

In controllers/devise_overrides/sessions_controller.rb:

class DeviseOverrides::SessionsController < Devise::SessionsController

  respond_to :json
  respond_to :html, only: []
  respond_to :xml, only: []

end

In routes.rb:

devise_for :users, controllers: {
  sessions:  "devise_overrides/sessions"
}