Interactor Example

interactor_example.rb

# Definition of the Interactor
 
class AuthenticateUser
include Interactor
 
 def call
   if user = User.authenticate(context.email, context.password)
     context.user = user
     context.token = user.secret_token
   else
     context.fail!(message: 'authenticate_user.failure')
   end
 end
end
 
# Invocation of the Interactor
class SessionsController < ApplicationController
  def create
    if user = AuthenticateUser.call(session_params) # session_params = { email: 'blah@example.com', password: 'blahblahblackheap'}
      session[:user_token] = user.secret_token
      redirect_to user
    else
      flash.now[:message] = 'Please try again.'
      render :new
    end
  end
end