rails_api_mode_quickstart_with_json_crud_controller.rb

1# 1. Generate the application in API mode from your terminal:
2# rails new my_api --api
3
4# 2. Example of a typical API Controller (app/controllers/application_controller.rb):
5class ApplicationController < ActionController::API
6end
7
8# 3. Example of a resource controller (app/controllers/articles_controller.rb):
9class ArticlesController < ApplicationController
10  # GET /articles
11  def index
12    @articles = Article.all
13    render json: @articles
14  end
15
16  # GET /articles/1
17  def show
18    @article = Article.find(params[:id])
19    render json: @article
20  end
21
22  # POST /articles
23  def create
24    @article = Article.new(article_params)
25
26    if @article.save
27      render json: @article, status: :created, location: @article
28    else
29      render json: @article.errors, status: :unprocessable_entity
30    end
31  end
32
33  private
34    def article_params
35      params.expect(article: [:title, :content])
36    end
37end
38
39# 4. Example of the routes configuration (config/routes.rb):
40Rails.application.routes.draw do
41  resources :articles
42end