cerulean_example.rb

class PostsController < ApplicationController
  get :index do
    params do
      param :limit, Integer, min: 1, max: 100, default: 10
      param :offset, Integer, min: 0, default: 0
    end
    presenter PostPresenter
    request do
      present Post.limit(params[:limit]).offset(params[:offset])
    end
  end

  get :show do
    params do
      param :id, Integer
    end
    presenter PostPresenter
    request do
      present Post.find(params[:id])
    end
  end

  post :create do
    form :post, PostForm
    presenter PostPresenter
    request do
      authenticate!
      present @form.with_user(current_user).save!
    end
  end
  
  put :update do
    form :post, PostForm
    presenter PostPresenter
    request do
      authenticate!
      present @form.save!
    end
  end
  
  delete :destroy do
    params do
      param :id, Integer
    end
    request do
      authenticate!
      Post.destroy(params[:id])
    end
  end
end