Action mailer rails

Action Mailer is a part of the Ruby on Rails framework that allows you to send emails from your application. It provides a simple way to send emails and also provides features such as email templates, attachments, and layout support.

Here are some key features of Action Mailer:

1. Email Templates: Action Mailer allows you to define email templates using ERb (Embedded Ruby) syntax. This allows you to easily customize the content of your emails.
2. Attachments: You can attach files to your emails using Action Mailer. This is useful for sending documents, images, or other types of files.
3. Layout Support: Action Mailer provides support for email layouts, which allows you to define a common layout for all your emails.
4. Delivery Methods: Action Mailer provides several delivery methods for sending emails, including SMTP, Sendmail, and Mailgun.
5. Error Handling: Action Mailer provides error handling for email delivery, which allows you to catch and handle errors that occur during email delivery.

To use Action Mailer in your Rails application, you need to create an email class that inherits from ActionMailer::Base. For example:

# app/mailers/user_mailer.rb
class UserMailer < ActionMailer::Base
  default from: '[email protected]'

  def welcome_email(user)
    @user = user
    mail to: user.email, subject: 'Welcome to our application!'
  end
end

In this example, we define an email class called UserMailer that inherits from ActionMailer::Base. We also define a method called welcome_email that sends an email to the user with a welcome message.

To send an email using Action Mailer, you can use the deliver method:

# app/controllers/users_controller.rb
class UsersController < ApplicationController
  def create
    user = User.new(params[:user])
    UserMailer.welcome_email(user).deliver
    redirect_to root_url, notice: 'Email sent successfully!'
  end
end

In this example, we create a new user and then send a welcome email using the welcome_email method. We use the deliver method to send the email.

Action Mailer also provides several other features, such as:

• Email attachments: You can attach files to your emails using the attachments method.
• Email layouts: You can define a common layout for all your emails using the layout method.
• Email templates: You can define email templates using ERb syntax.
• Error handling: Action Mailer provides error handling for email delivery, which allows you to catch and handle errors that occur during email delivery.

Overall, Action Mailer provides a powerful and flexible way to send emails from your Rails application.