gistfile1.rb

require 'rubygems'
require 'sinatra'
require 'em-http'
require 'json'
require 'lib/ring_buffer'

TWEETS = RingBuffer.new(10)

def handle_tweet(tweet)
  return unless tweet['text']
  TWEETS.push(tweet)
end

EM.next_tick do
  http = EM::HttpRequest.new('http://stream.twitter.com/1/statuses/sample.json').get :head => { 'Authorization' => [ 'user', 'password' ] }
  buffer = ""
  http.stream do |chunk|
    buffer += chunk
    while line = buffer.slice!(/.+\r?\n/)
      handle_tweet JSON.parse(line)
    end
  end
end

get '/tweets' do
  TWEETS.map {|tweet| "<p><b>#{tweet['user']['screen_name']}</b>: #{tweet['text']}</p>" }.join
end