Example modular Sinatra app

config.ru

require './lib/cool_art_client'

run CoolArtClient

cool_art_client.rb

# in ./lib/cool_art_client.rb

require 'sinatra/base'

class CoolArtClient < Sinatra::Base
  get "/" do
    # render an erb view
    erb :index
  end

  post "/tickets" do
    # ...or just return a string
    "You've bought a ticket!"
  end
end

Gemfile

source 'https://rubygems.org'

gem 'totally_cool_art', git: "https://github.com/shjohnson/TotallyCoolArt"
gem 'sinatra'

group :test, :development do
  gem 'rspec'
end

index.erb

<%# in ./lib/views/index.erb %>

I'm in an <%= 'erb file' %>!