Microservices

00_user_model.rb

class User < ActiveRecord::Base
  after_create :notify_added
  validates :email, uniqueness: true
 
  def notify_added
    UserMailer.email(self).deliver
  end
end

01_users_controller.rb

class UsersController < ApplicationController

  def index
    @users = User.all
  end

  def new; end

  def create
    User.new(user_params).save!
    redirect_to action: 'index'
  end

private
  def user_params
    params.require(:user).permit(:full_name, :phone_number, :email)
  end
end