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Question

How do I do RESTful sign-up and sign-in using devise in Ruby on Rails (I am using version 4)?

First of all, I could not find any documentation with regards to the parameters (eg email, password) that I should POST to the server.

EDIT: Based on further investigation, it seems that RESTful login using json data (eg via AJAX) is not supported out of the box in the current version of devise. When I send a JSON request it responds with a HTML page instead of a JSON object. Does this mean that I need to create custom controller for handling user registration and login? If so, please elaborate.

Answer 1

Most things are the same. The main change is the switch to strong parameters. To add your own strong parameters, put this in your application controller:

def configure_devise_params
    devise_parameter_sanitizer.for(:sign_up) do |u|
        u.permit(fields go here)
    end
end 

Otherwise, its essentially the same procedure as in 3. If there is something else you don't know how to do, please ask a more specific question.