mvc_controller_5.rb

class UsersController < ApplicationController
  
  def create
    service = CreateUserService.new(@user, params[:send_email])
    if service.perform
      render json: service.output, status: 200
    else
      render json service.errors, status: 400
    end
  end
  
  def update
    service = UpdateUserService.new(@user)
    if service.perform
      render json: service.output, status: 200
    else
      render json service.errors, status: 400
    end
  end  
  
  def destroy
    service = DeleteUserService.new(@user)
    if service.perform
      render json: service.output, status: 204
    else
      render json service.errors, status: 400
    end
  end   
  
end