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

module Mobile
  module Apis
    class Courses < Grape::API
      resource :courses do
        desc "get all courses"
        params do
          optional :school_id, type: Integer, desc: 'school number'
          requires :per_page_count, type: Integer
          requires :page, type: Integer, desc: 'current page no'
        end
        get do
          cs = CoursesService.new
          courses = cs.course_list(params)
          present :data, courses, with: Mobile::Entities::Course
          present :status, 0
        end

        desc "Return a course"
        params do
          requires :id, type: Integer
        end
        route_param :id do
          get do
            course = Course.find(params[:id])
            {status: 0, data: course}
          end
        end

      end
    end
  end
end