7 implement redis

.gitignore

@@ -28,6 +28,7 @@
 /tmp/storage/*
 !/tmp/storage/
 !/tmp/storage/.keep
+dump.rdb
 
 # Ignore master key for decrypting credentials and more.
 /config/master.key

.rubocop.yml

@@ -13,6 +13,7 @@ AllCops:
 ###################
 Custom/PrivateMethodStyle:
   Enabled: true
+  AutoCorrect: true
 ###################
 # End Custom Cops #
 ###################
@@ -28,6 +29,7 @@ Lint/UnusedMethodArgument:
 Metrics/AbcSize:
   Exclude:
     - "app/models/application_record.rb"
+    - "lib/rubocop/cop/custom/*.rb"
 Metrics/CyclomaticComplexity:
   Exclude:
     - "lib/rubocop/cop/custom/*.rb"

Gemfile

@@ -14,6 +14,8 @@ gem "pg", "~> 1.1"
 gem "faker"
 gem "money-rails"
 gem "puma", ">= 5.0"
+gem "redis"
+gem "redis-rails"
 
 # Build JSON APIs with ease [https://github.com/rails/jbuilder]
 # gem "jbuilder"

Gemfile.lock

@@ -162,18 +162,8 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.16.6-aarch64-linux)
-      racc (~> 1.4)
-    nokogiri (1.16.6-arm-linux)
-      racc (~> 1.4)
     nokogiri (1.16.6-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.16.6-x86-linux)
-      racc (~> 1.4)
-    nokogiri (1.16.6-x86_64-darwin)
-      racc (~> 1.4)
-    nokogiri (1.16.6-x86_64-linux)
-      racc (~> 1.4)
     parallel (1.24.0)
     parser (3.3.1.0)
       ast (~> 2.4.1)
@@ -231,6 +221,26 @@ GEM
     rake (13.2.1)
     rdoc (6.7.0)
       psych (>= 4.0.0)
+    redis (5.2.0)
+      redis-client (>= 0.22.0)
+    redis-actionpack (5.4.0)
+      actionpack (>= 5, < 8)
+      redis-rack (>= 2.1.0, < 4)
+      redis-store (>= 1.1.0, < 2)
+    redis-activesupport (5.3.0)
+      activesupport (>= 3, < 8)
+      redis-store (>= 1.3, < 2)
+    redis-client (0.22.2)
+      connection_pool
+    redis-rack (3.0.0)
+      rack-session (>= 0.2.0)
+      redis-store (>= 1.2, < 2)
+    redis-rails (5.0.2)
+      redis-actionpack (>= 5.0, < 6)
+      redis-activesupport (>= 5.0, < 6)
+      redis-store (>= 1.2, < 2)
+    redis-store (1.10.0)
+      redis (>= 4, < 6)
     regexp_parser (2.9.2)
     reline (0.5.9)
       io-console (~> 0.5)
@@ -314,6 +324,8 @@ DEPENDENCIES
   pry-rails
   puma (>= 5.0)
   rails (~> 7.1.3, >= 7.1.3.4)
+  redis
+  redis-rails
   rspec-rails
   rubocop
   rubocop-rails

config/application.rb

@@ -27,6 +27,7 @@ class Application < Rails::Application
     # not contain `.rb` files, or that should not be reloaded or eager loaded.
     # Common ones are `templates`, `generators`, or `middleware`, for example.
     config.autoload_lib(ignore: %w(assets tasks))
+    config.autoload_paths << Rails.root.join('lib')
 
     # Configuration for the application, engines, and railties goes here.
     #

config/environments/development.rb

@@ -19,14 +19,19 @@
 
   # Enable/disable caching. By default caching is disabled.
   # Run rails dev:cache to toggle caching.
-  if Rails.root.join("tmp/caching-dev.txt").exist?
-    config.cache_store = :memory_store
+
+  if Rails.root.join("tmp/caching-dev.txt").exist? || ENV['REDIS_URL'].present?
+    config.cache_store = :redis_cache_store, {
+      url: ENV['REDIS_URL'] || 'redis://localhost:6379/0',
+      namespace: 'app_cache', # Optional: Add a namespace for keys
+      expires_in: 1.day # Optional: Set expiration time for cached data
+    }
+
     config.public_file_server.headers = {
       "Cache-Control" => "public, max-age=#{2.days.to_i}"
     }
   else
     config.action_controller.perform_caching = false
-
     config.cache_store = :null_store
   end
 
@@ -68,6 +73,10 @@
 
   # Raise error when a before_action's only/except options reference missing actions
   config.action_controller.raise_on_missing_callback_actions = true
+  # config/environments/development.rb
+  config.cache_store = :redis_cache_store, { url: 'redis://localhost:6379/0' }
+  config.session_store :cache_store, key: '_myapp_session', expire_after: 1.week
+
 
   config.generators.after_generate do |files|
     parsable_files = files.filter { |file| file.end_with?('.rb') }

config/environments/production.rb

@@ -58,7 +58,7 @@
   config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
 
   # Use a different cache store in production.
-  # config.cache_store = :mem_cache_store
+ config.cache_store = :redis_cache_store, { url: ENV["REDIS_URL"] || "redis://localhost:6379/1" }
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter = :resque

config/initializers/redis.rb

@@ -0,0 +1,3 @@
+require './lib/cache/store'
+redis_url = ENV["REDIS_URL"] || "redis://localhost:6379/1"
+::Cache::Store.cache(Redis.new(url: redis_url))

lib/cache/store.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module Cache
+  class Store
+    def self.cache(store)
+      @cache ||= store
+    end
+
+    def self.set(key, value, expires_in: 1.hour)
+      @cache.set(key, value)
+      @cache.expire(key, expires_in)
+    end
+
+    def self.get(key)
+      @cache.get(key)
+    end
+
+    def self.del(key)
+      @cache.del(key)
+    end
+
+    def self.exists?(key)
+      @cache.exists(key)
+    end
+  end
+end

spec/lib/cache/store_spec.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+require Rails.root.join("lib/cache/store")
+
+RSpec.describe Cache::Store do
+  describe ".set and .get" do
+    it "stores and retrieves data from Redis cache" do
+      key = "test_key"
+      value = "test_value"
+
+      # Set value in cache
+      Cache::Store.set(key, value)
+
+      # Get value from cache
+      cached_value = Cache::Store.get(key)
+
+      expect(cached_value).to eq(value)
+    end
+  end
+
+  describe ".del" do
+    it "deletes data from Redis cache" do
+      key = "test_key"
+      value = "test_value"
+
+      # Set value in cache
+      Cache::Store.set(key, value)
+
+      # Delete value from cache
+      Cache::Store.del(key)
+
+      # Verify value is deleted
+      cached_value = Cache::Store.get(key)
+
+      expect(cached_value).to be_nil
+    end
+  end
+end