URI templates are, like, super-useful

template-uri.rb

# https://github.com/sporkmonger/addressable/
require 'addressable/template'

# http://dev.twitter.com/doc/get/statuses/followers
template = Addressable::Template.new 'http://{host=twitter.com}' +
  '/statuses/followers{-prefix|/|id}.{format=json}' +
  '?{-join|&|user_id,screen_name,cursor}'

template.expand(:id => 'mislav')
# => http://twitter.com/statuses/followers/mislav.json?

template.expand(:id => 'mislav', :format => 'xml')
# => http://twitter.com/statuses/followers/mislav.xml?

template.expand(:user_id => 7516242)
# => http://twitter.com/statuses/followers.json?user_id=7516242

template.expand(:screen_name => 'mislav', :cursor => -1)
# => http://twitter.com/statuses/followers.json?screen_name=mislav&cursor=-1

template.expand(:host => 'api.tweetmuffler.com', :id => 'mislav')
# => http://api.tweetmuffler.com/statuses/followers/mislav.json?