本一覧取得、表示

backend/Gemfile

@@ -34,7 +34,7 @@ gem "bootsnap", require: false
 # gem "image_processing", "~> 1.2"
 
 # Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible
-# gem "rack-cors"
+gem "rack-cors"
 
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
@@ -45,4 +45,3 @@ group :development do
   # Speed up commands on slow machines / big apps [https://github.com/rails/spring]
   # gem "spring"
 end
-

backend/Gemfile.lock

@@ -116,6 +116,8 @@ GEM
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (2.2.8)
+    rack-cors (2.0.1)
+      rack (>= 2.0.0)
     rack-test (2.1.0)
       rack (>= 1.3)
     rails (7.0.8)
@@ -169,6 +171,7 @@ DEPENDENCIES
   debug
   mysql2 (~> 0.5)
   puma (~> 5.0)
+  rack-cors
   rails (~> 7.0.8)
   tzinfo-data
 

backend/app/controllers/books_controller.rb

@@ -0,0 +1,51 @@
+class BooksController < ApplicationController
+  before_action :set_book, only: %i[ show update destroy ]
+
+  # GET /books
+  def index
+    @books = Book.all
+
+    render json: @books
+  end
+
+  # GET /books/1
+  def show
+    render json: @book
+  end
+
+  # POST /books
+  def create
+    @book = Book.new(book_params)
+
+    if @book.save
+      render json: @book, status: :created, location: @book
+    else
+      render json: @book.errors, status: :unprocessable_entity
+    end
+  end
+
+  # PATCH/PUT /books/1
+  def update
+    if @book.update(book_params)
+      render json: @book
+    else
+      render json: @book.errors, status: :unprocessable_entity
+    end
+  end
+
+  # DELETE /books/1
+  def destroy
+    @book.destroy
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_book
+      @book = Book.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def book_params
+      params.require(:book).permit(:title, :author)
+    end
+end

backend/app/models/book.rb

@@ -0,0 +1,2 @@
+class Book < ApplicationRecord
+end

backend/config/application.rb

@@ -23,5 +23,12 @@ class Application < Rails::Application
     # Middleware like session, flash, cookies can be added back manually.
     # Skip views, helpers and assets when generating a new resource.
     config.api_only = true
+
+    config.middleware.insert_before 0, Rack::Cors do
+      allow do
+        origins 'http://localhost:8000' # あなたのNext.jsアプリのホストに変更
+        resource '*', headers: :any, methods: [:get, :post, :put, :patch, :delete, :options]
+      end
+    end
   end
 end

backend/config/environments/development.rb

@@ -53,7 +53,7 @@
   # Highlight code that triggered database queries in logs.
   config.active_record.verbose_query_logs = true
 
-
+  config.hosts << "backend"
   # Raises error for missing translations.
   # config.i18n.raise_on_missing_translations = true
 

backend/config/routes.rb

@@ -1,4 +1,5 @@
 Rails.application.routes.draw do
+  resources :books
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 
   # Defines the root path route ("/")

backend/db/migrate/20231123214553_create_books.rb

@@ -0,0 +1,10 @@
+class CreateBooks < ActiveRecord::Migration[7.0]
+  def change
+    create_table :books do |t|
+      t.string :title
+      t.string :author
+
+      t.timestamps
+    end
+  end
+end

backend/db/seeds.rb

@@ -5,3 +5,20 @@
 #
 #   movies = Movie.create([{ name: "Star Wars" }, { name: "Lord of the Rings" }])
 #   Character.create(name: "Luke", movie: movies.first)
+
+Book.create!(
+  [
+    {
+      title: 'Railsチュートリアル',
+      author: "チュートリアル"
+    },
+    {
+      title: 'Railsの教科書',
+      author: 'hoge'
+    },
+    {
+      title: 'パーフェクトrails',
+      author: 'hogehoge'
+    }
+  ]
+)

backend/test/controllers/books_controller_test.rb

@@ -0,0 +1,38 @@
+require "test_helper"
+
+class BooksControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @book = books(:one)
+  end
+
+  test "should get index" do
+    get books_url, as: :json
+    assert_response :success
+  end
+
+  test "should create book" do
+    assert_difference("Book.count") do
+      post books_url, params: { book: { author: @book.author, title: @book.title } }, as: :json
+    end
+
+    assert_response :created
+  end
+
+  test "should show book" do
+    get book_url(@book), as: :json
+    assert_response :success
+  end
+
+  test "should update book" do
+    patch book_url(@book), params: { book: { author: @book.author, title: @book.title } }, as: :json
+    assert_response :success
+  end
+
+  test "should destroy book" do
+    assert_difference("Book.count", -1) do
+      delete book_url(@book), as: :json
+    end
+
+    assert_response :no_content
+  end
+end

backend/test/fixtures/books.yml

@@ -0,0 +1,9 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+one:
+  title: MyString
+  author: MyString
+
+two:
+  title: MyString
+  author: MyString

backend/test/models/book_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class BookTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end

frontend/Dockerfile

@@ -0,0 +1,3 @@
+FROM node:18
+WORKDIR /usr/src/app
+RUN npm install axios