メールのジョブの永続化を実装

Gemfile

@@ -82,3 +82,5 @@ gem 'slim-rails'
 gem 'sorcery'
 gem 'config'
 gem 'letter_opener_web'
+gem 'sidekiq'
+gem 'sinatra'

Gemfile.lock

@@ -89,6 +89,7 @@ GEM
     config (3.1.0)
       deep_merge (~> 1.2, >= 1.2.1)
       dry-validation (~> 1.0, >= 1.0.0)
+    connection_pool (2.2.5)
     crass (1.0.6)
     debug_inspector (1.1.0)
     deep_merge (1.2.1)
@@ -203,6 +204,8 @@ GEM
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     mysql2 (0.5.3)
     nio4r (2.5.7)
     nokogiri (1.11.7-x86_64-darwin)
@@ -230,6 +233,8 @@ GEM
     puma (3.12.6)
     racc (1.5.2)
     rack (2.2.3)
+    rack-protection (2.1.0)
+      rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.6)
@@ -325,6 +330,15 @@ GEM
     selenium-webdriver (3.142.7)
       childprocess (>= 0.5, < 4.0)
       rubyzip (>= 1.2.2)
+    sidekiq (6.2.1)
+      connection_pool (>= 2.2.2)
+      rack (~> 2.0)
+      redis (>= 4.2.0)
+    sinatra (2.1.0)
+      mustermann (~> 1.0)
+      rack (~> 2.2)
+      rack-protection (= 2.1.0)
+      tilt (~> 2.0)
     slim (4.1.0)
       temple (>= 0.7.6, < 0.9)
       tilt (>= 2.0.6, < 2.1)
@@ -403,6 +417,8 @@ DEPENDENCIES
   rubocop-rails
   sass-rails (~> 5.0)
   selenium-webdriver
+  sidekiq
+  sinatra
   slim-rails
   sorcery
   spring

config/application.rb

@@ -16,6 +16,7 @@ class Application < Rails::Application
     config.active_record.default_timezone = :local
     config.i18n.default_locale = :ja
     config.i18n.load_path += Dir[Rails.root.join('config', 'locales', '**', '*.{rb,yml}').to_s]
+    config.active_job.queue_adapter = :sidekiq
 
     config.generators do |g|
       g.assets false

config/initializers/sidekiq.rb

@@ -0,0 +1,11 @@
+Sidekiq.configure_server do |config|
+    config.redis = {
+        url: 'redis://localhost:6379'
+    }
+  end
+
+  Sidekiq.configure_client do |config|
+    config.redis = {
+        url: 'redis://localhost:6379'
+    }
+  end

config/routes.rb

@@ -1,8 +1,10 @@
 # frozen_string_literal: true
+require 'sidekiq/web'
 
 Rails.application.routes.draw do
   if Rails.env.development?
     mount LetterOpenerWeb::Engine, at: '/letter_opener'
+    mount Sidekiq::Web, at: '/sidekiq'
   end
   root 'posts#index'
 

config/sidekiq.yml

@@ -0,0 +1,4 @@
+:concurrency: 25
+:queues:
+  - default
+  - mailers