socialforge/app/api/mobile/apis/homeworks.rb

#coding=utf-8

module Mobile
  module Apis
    class Homeworks < Grape::API

      def self.get_service
        HomeworkService.new
      end

      resources :homeworks do
        desc "作业详情"
        params do
          requires :id, type: Integer, desc: "作业ID"
        end
        route_param  :id do
          get do
            homework = Homeworks.get_service.show_homework params
            present :data, homework, with: Mobile::Entities::Homework
            present :status, 0
          end
        end
      end

    end
  end
end