Ruby on rails Rails呈现json-如何下载响应？

如何设置Response，以便动态生成的json数据将通过浏览器下载，而不是显示

我正在使用主动管理

  member_action :download, :method => :get do
    application = Application.find(params[:id])
    respond_to do |format|
      format.json { render json: application.to_json( include: { categories: { include: { my_cases: { include: [{ questions: { include: :answers } }, :keys ] } } } } ) }
    end
  end

---

使用

send_data

方法：

respond_to do |format|
  format.json { send_data application.to_json( include: { categories: { include: { my_cases: { include: [{ questions: { include: :answers } }, :keys ] } } } } ), type: :json, disposition: "attachment" }
end

---

使用

send_data

方法：

respond_to do |format|
  format.json { send_data application.to_json( include: { categories: { include: { my_cases: { include: [{ questions: { include: :answers } }, :keys ] } } } } ), type: :json, disposition: "attachment" }
end