app.rb

require 'sinatra/base'
require 'sinatra'
require 'mongoid'
Dir.glob('/controllers/*.rb').each { |file| require file }


configure do
  Mongoid.load!("./mongoid.yml")
end


class ApplicationController < Sinatra::Base
  set :root, File.dirname(__FILE__)
  enable :sessions

  get '/' do
    erb :login
  end

end

post.rb

require 'sinatra'
#in /controllers/
class PostController < ApplicationController
  get '/posts' do
    @post = Post.all
  end
end