config.ru

# encoding: UTF-8
#\ -p 5000

header = { 'Content-Type' => 'text/plain' }

hello = ->(env) { [ 200, header, [ 'Hello World!' ] ] }
time = proc { |env| [ 200, header, [ Time.now.to_s ] ] }
date = Proc.new { |env| [ 200, header, [ Date.today.to_s ] ] }
random = lambda { |env| [ 200, header, [ rand(1000000).to_s ] ] }

class Environment
  def call(env)
    [ 200, {}, [ env.to_s ] ]
  end
end

map '/' do
  run hello
end

map '/hello' do
  run hello
end

map '/env' do
  run Environment.new
end

map '/time' do
  run time
end

map '/date' do
  run date
end

map '/random' do
  run random
end

map '/temporal' do
  run time

  map '/time' do
    run time
  end

  map '/date' do
    run date
  end
end