Gist login/logout controller

user_sessions_controller.rb

class UserSessionsController < ApplicationController

  skip_before_action :get_current_user, only: [:create]

  def create
    authorize! :create, UserSessionsController
    interactor = SignInUser.perform(users_session_params)
    create_context interactor

    if interactor.success?
      respond_to do |format|
        format.html
        format.json do
          render_jsend success: {
            username: @username,
            token:    @token
          }
        end
      end
    else
      respond_to do |format|
        format.html
        format.json do
          render_jsend fail: {
            message: @message
          }
        end
    end
  end

  def destroy
    authorize! :destroy, UserSessionsController
    SignOutUser.perform(user: current_user)
    render_jsend :success
  end

  private
  
  def users_session_params
    params.require(:user_session).permit(:username, :password)
  end

  def create_context(interactor)
    interactor.each do |key, value|
      instance_variable_set(:"@#{ key }", value)
    end
  end

end