gistfile1.txt

~/projects/jruby/sinatra-app ➔ cat config.ru
require 'rubygems'
require 'hello_world'
set :run, false
set :environment, :production
run Sinatra::Application

~/projects/jruby/sinatra-app ➔ cat hello_world.rb 
require 'rubygems'
require 'sinatra'
require 'json/pure'

put '/foo' do
  request_body = request.body.read  # JSON String
  
  puts "Incoming data: #{request_body}"
  
  obj = JSON.parse(request_body)
  
  return JSON.generate(obj)
end

~/projects/jruby/sinatra-app ➔ trinidad --threadsafe -r
Incoming data: { "foo": "bar" }
Jun 15, 2010 9:39:56 AM org.apache.catalina.core.ApplicationContext log
INFO: 0:0:0:0:0:0:0:1%0 -  [15/Jun/2010 09:39:56] "PUT /foo " 200 13 0.0170