Some Ruby sample code

samples.rb

require 'uri'
require 'net/http'
require 'json'

# Here's my Ruby 'FizzBuzz'. I've searched far and wide and
# haven't found one I like better.
def fizzbuzz
  1.upto(100) do |number|
    message = "#{"Fizz" if number % 3 == 0}#{"Buzz" if number % 5 == 0}"
    puts message.empty? ? number : message
  end
end

# This thing fetches a list of places from the Twitter API,
# using 'accuracy' as a simple way to specify a range around a point.
# It returns them as JSON for eventual displayed on a Google map.
def get_places_with_accuracy(accuracy, lat, long)
  urlstring = 'http://api.twitter.com'
  url = URI.parse(urlstring)
    
  #http://dev.twitter.com/doc/get/geo/search
  response = Net::HTTP.start(url.host, url.port) { |http|
    http.get("/1/geo/search.json?lat=#{lat}&long=#{long}&accuracy=#{accuracy}&granularity=poi&max_results=100")
  }
    
  json_response = JSON.parse(response.body)
    
  if json_response.nil? or !json_response['errors'].nil? then
    return JSON.generate []
  end
    
  places_list = json_response['result']['places']
    
  places_relevant_info = places_list.collect { |place| 
    {:name => place['name'],
     :id => place['id'],
     :long => lambda{ |place|#this stuff just gets the center of the bounding box
                            first = place['bounding_box']['coordinates'][0][0].first
                            second = place['bounding_box']['coordinates'][0][1].first
                            return second + ((first - second)/2)
                          }.call(place),
     :lat => lambda{ |place|
                            first = place['bounding_box']['coordinates'][0][1].last 
                            second = place['bounding_box']['coordinates'][0][2].last
                            return first + ((second - first)/2)
                          }.call(place)
     }
   }
    
  return JSON.generate places_relevant_info
    
end
  
def test_get_places_with_accuracy

  places = JSON.parse get_places_with_accuracy(100, '37.7821120598956','-122.400612831116')
  
  puts "The search returned #{places.length} places."
  
  places.sort! {|a,b| a["name"].length <=> b["name"].length}
  
  puts "Longest place name is #{places.last["name"]}."
  
  puts "I'll return a random place."
  
  places[rand(places.length + 1)]
  
end