Why email integration is essential in Ruby on Rails - See It in Action

Why email integration is essential

📖 Scenario: You are building a simple Rails application that needs to send emails to users for notifications like account confirmation and password reset.

🎯 Goal: Create a basic setup in Rails to integrate email sending functionality using Action Mailer.

📋 What You'll Learn

Create a mailer class with a method to send a welcome email

Configure the mailer with default sender email

Set up a simple email template

Trigger the mailer method from a controller action

💡 Why This Matters

🌍 Real World

Email integration is essential for user communication in web applications, such as sending notifications, confirmations, and password resets.

💼 Career

Understanding how to integrate email in Rails is a common requirement for backend developers working on user-facing applications.

1

Create a mailer class

Create a mailer class called UserMailer that inherits from ApplicationMailer.

Ruby on Rails

# Your code here

Need a hint?

Use rails generate mailer UserMailer in a real project to create this class.

2

Add default sender email

Inside the UserMailer class, add a default method to set the sender email to [e-mail].

Ruby on Rails

class UserMailer < ApplicationMailer
  # Set default sender email
  # Your code here
end

Need a hint?

Use default from: 'email' inside the mailer class.

3

Create a welcome email method

Add a method called welcome_email inside UserMailer that takes a user parameter and calls mail with to: user.email and subject: 'Welcome to Our App'.

Ruby on Rails

class UserMailer < ApplicationMailer
  default from: '[e-mail]'

  # Define welcome_email method
  # Your code here
end

Need a hint?

Define a method with def and use mail(to:, subject:) inside it.

4

Trigger welcome email from controller

In a controller action, call UserMailer.welcome_email(@user).deliver_now to send the welcome email immediately.

Ruby on Rails

class UsersController < ApplicationController
  def create
    @user = User.new(user_params)
    if @user.save
      # Send welcome email
      # Your code here
    end
  end
end

Need a hint?

Use deliver_now to send the email immediately after calling the mailer method.