API draft for simple RESt server for node.js in coffeescript

rest.coffee

listen 80, -> [
 session @constant "customers", -> [
  @regex /(0-9)+/, (id) -> [
   here ->
    customer = customers[id]
    if customer.isPrivate and @session.user.id isnt customer.id
     throw @error[401] "This customer doesn't want you to peek into his details"
   
   status: 200, body: serialize.toJson customer
  ]
 ],
 session @constant "products", -> [
  @regex /(0-9)+/, (id) ->
   
 ],
 (root, url...) ->
  return false if "foo" isnt root
  status: 200, body: "You are in /foo, the subpart you requested is #{url.join('/')}"
 session.management url: "session", assign: "session",
 @catch (url...) ->
  throw @error[404] "Uh oh, this page does not exists."
]