# ActionMailer (Ruby on Rails)

> 이메일 전송, mailers, layouts, attachments, delivery methods, 이메일 테스트

- 18 면접 질문
- Mid-Level
- [면접 질문: Ruby on Rails](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions.md)

## 1. Rails 애플리케이션에서 새 mailer를 생성하는 명령은 무엇입니까?

**답변**

rails generate mailer 명령(또는 rails g mailer)은 app/mailers에 해당 클래스, app/views에 뷰, 그리고 테스트 파일을 포함한 새 mailer를 만듭니다. 이 명령은 Rails 규약을 따르며 이메일 전송에 필요한 파일 구조를 자동으로 생성합니다.

## 2. Rails 애플리케이션에서 모든 mailer는 어떤 클래스를 상속해야 합니까?

**답변**

모든 Rails mailer는 ApplicationMailer를 상속하며, ApplicationMailer 자체는 ActionMailer::Base를 상속합니다. ApplicationMailer는 기본적으로 app/mailers에 생성되며, 기본 layout이나 발신자 주소처럼 애플리케이션의 모든 mailer에 공통된 설정을 정의할 수 있습니다.

## 3. Rails 애플리케이션에서 이메일 뷰 템플릿은 어느 디렉터리에 위치합니까?

**답변**

이메일 뷰 템플릿은 app/views/mailer_name/에 위치합니다. mailer의 각 메서드는 템플릿에 대응합니다(예: welcome_email.html.erb 및 welcome_email.text.erb). Rails는 mailer 메서드 이름과 일치하는 템플릿을 자동으로 찾습니다.

## 15개 추가 질문 이용 가능

- ActiveJob를 통해 이메일을 비동기로 보내려면 어떤 메서드를 사용해야 합니까?
- mailer의 모든 이메일에 대해 기본 발신자 주소를 정의하려면 어떻게 합니까?

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## 기타 Ruby on Rails 면접 주제

- [Ruby 기초](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/ruby-basics.md): 25개 질문, Junior
- [Ruby 객체 지향 프로그래밍](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/ruby-oop.md): 20개 질문, Junior
- [Rails 기초](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-fundamentals.md): 18개 질문, Junior
- [Routing & Controllers](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/routing-controllers.md): 22개 질문, Junior
- [ActiveRecord 기초](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/active-record-basics.md): 25개 질문, Junior
- [Views와 ERB 템플릿](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/views-erb-templates.md): 20개 질문, Junior
- [ActiveRecord 연관 관계](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/active-record-associations.md): 24개 질문, Mid-Level
- [고급 ActiveRecord 쿼리](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/active-record-queries.md): 28개 질문, Mid-Level
- [Rails 폼](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-forms.md): 20개 질문, Mid-Level
- [인증과 인가](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/authentication-authorization.md): 22개 질문, Mid-Level
- [최신 Asset Pipeline 및 프런트엔드](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-asset-pipeline.md): 18개 질문, Mid-Level
- [Rails API 모드](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-api-mode.md): 20개 질문, Mid-Level
- [RSpec를 사용한 테스트](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-testing-rspec.md): 24개 질문, Mid-Level
- [ActiveJob & Background Jobs](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/active-job-background-jobs.md): 20개 질문, Mid-Level
- [ActionCable & WebSockets](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/action-cable-websockets.md): 18개 질문, Mid-Level
- [ActiveStorage](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/active-storage.md): 20개 질문, Mid-Level
- [캐싱 전략](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/caching-strategies.md): 20개 질문, Mid-Level
- [고급 마이그레이션](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/database-migrations-advanced.md): 20개 질문, Mid-Level
- [Rails Engines 및 모듈식 앱](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-engines-modular-apps.md): 18개 질문, Senior
- [성능 최적화](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/performance-optimization.md): 26개 질문, Senior
- [Rails 디자인 패턴](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-design-patterns.md): 22개 질문, Senior
- [Ruby 메타프로그래밍](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/ruby-metaprogramming.md): 20개 질문, Senior
- [Rails 보안](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-security.md): 22개 질문, Senior
- [Rails에서의 GraphQL](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/graphql-rails.md): 20개 질문, Senior
- [배포 및 프로덕션](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-deployment-production.md): 20개 질문, Senior
- [Monitoring & Logging](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/monitoring-logging.md): 20개 질문, Senior
- [Rails 업그레이드 전략](https://sharpskill.dev/ko/technologies/ruby-on-rails/interview-questions/rails-upgrade-strategies.md): 18개 질문, Senior

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