Rails API控制器 #

module Api
  module V1
    class ArticlesController < BaseController
      def index
        @articles = Article.all
        render json: @articles
      end
      
      def show
        @article = Article.find(params[:id])
        render json: @article
      end
    end
  end
end

# app/views/api/v1/articles/show.json.jbuilder
json.id @article.id
json.title @article.title
json.body @article.body
json.author do
  json.id @article.author.id
  json.name @article.author.name
end

rescue_from ActiveRecord::RecordNotFound, with: :record_not_found

private

def record_not_found
  render json: { error: '资源不存在' }, status: :not_found
end