Rails:将API请求限制为JSON格式 [英] Rails: Restrict API requests to JSON format

问题描述

我想将对所有API控制器的请求限制为重定向到JSON路径.我想使用重定向，因为URL也应根据响应进行更改.
一种选择是使用before_filter，它将请求重定向到相同的操作，但强制使用JSON格式.该示例尚不可用！

I would like to restrict requests to all API controllers to being redirected to the JSON path. I would like to use a redirect since also the URL should change according to the response.
One option would be to use a before_filter which redirects the request to the same action but forces the JSON format. The example is not working yet!

# base_controller.rb
class Api::V1::BaseController < InheritedResources::Base
  before_filter :force_response_format
  respond_to :json
  def force_response_format
    redirect_to, params[:format] = :json
  end
end

另一种选择是在路由设置中限制格式.

Another option would be to restrict the format in the routes settings.

# routes.rb
MyApp::Application.routes.draw do
  namespace :api, defaults: { format: 'json' } do
    namespace :v1 do
      resources :posts
    end
  end
end

我希望所有请求最终都成为JSON请求:

I want all request to end up as a JSON request:

http://localhost:3000/api/v1/posts
http://localhost:3000/api/v1/posts.html
http://localhost:3000/api/v1/posts.xml
http://localhost:3000/api/v1/posts.json
...

您会推荐哪种策略?

推荐答案

在路由中设置默认设置不会将所有请求转换为JSON请求.

Setting a default in your routes won't turn all requests into a JSON request.

您要确保要呈现的内容是JSON响应

What you want is to make sure that whatever you're rendering is a JSON response

除了您需要执行此操作之外，您几乎都在第一个选项中拥有了它

You pretty much had it in the first option except you need to do this

before_filter :set_default_response_format

private
  def set_default_response_format
    request.format = :json
  end

这将在您的Base API控制器下进行，以便在执行实际操作时，格式始终为JSON.

That would go under your Base API controller so that when it gets to your actual action the format will always be JSON.

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