Rails返回JSON而不是HTML [英] Rails return JSON instead of HTML

问题描述

我有一个ruby on rails Web应用程序，但是我希望它像Web服务一样工作，而不是HTML来返回JSON。我想要所有CRUD方法。我希望将整个页面呈现为JSON，到目前为止，我只在Show and Edit中为 User 变量实现了此功能。但是我希望整个页面，所有CRUD方法都显示为JSON。

I have a ruby on rails web app, but I want it to act like a web service and instead of HTML to return JSONs. I want this for all CRUD methods. I want the whole page to be rendered as JSON, so far I only achieved this in Show and Edit for the User variable. But I want the whole page, for all CRUD method to show as JSONs.

    def index
    @users = User.all
end


def show
    @user = User.find(params[:id])

    # Render json or not
    render json: @user
end


def new
    @user = User.new
end


 def edit
    @user = User.find(params[:id])
end


def create
    @user = User.new(user_params)

    if @user.save
        redirect_to @user
    else
        render 'new'
    end
end


def update
    @user = User.find(params[:id])

    if @user.update(user_params)
        redirect_to @user
    else
        render 'edit'
    end
end


def destroy
    @user = User.find(params[:id])
    @user.destroy

    redirect_to users_path
end

到目前为止，我发现这个 render json：@user ，但是我希望整个页面都呈现为JSON，而不仅仅是变量。以及所有URL的所有CRUD方法。

So far I found this render json: @user, but I want the whole page to be rendered as JSON and not just the variable. And every URL, for all CRUD methods.

编辑：如果我在 routes.rb 中添加资源：用户，默认值：{format：：json} ，然后我收到错误消息缺少模板用户/索引，应用程序/索引，{：locale => [：en] ，：formats => [：json]，：variants => []，：handlers => [：erb，：builder，：raw，：ruby，：coffee，：jbuilder]}

if I add to my routes.rb something like this resources :users, defaults: {format: :json} then I get error message "Missing template users/index, application/index with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :coffee, :jbuilder]}"

推荐答案

尝试索引页面

respond_to do |format|
  format.html { @users }
  format.json { render json: json_format(@users) }
end

对于其他所有用户，它都是一个对象

And for all other, where User it's one object

respond_to do |format|
  format.html { @user }
  format.json { render json: json_format(@user) }
end

之后，您将具有 http：// localhost：3000 / users。 json 和 http：// localhost：3000 / user / 1.json 页面呈现为JSON和HTML，不含 .json

after this you will have http://localhost:3000/users.json and http://localhost:3000/user/1.json pages wich rendered as JSON and HTML without ".json"

这篇关于Rails返回JSON而不是HTML的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！