api para consultar os horarios de onibus por linha

Gemfile

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+source :rubygems
+
+gem "sinatra"
+gem "thin"
+gem "nokogiri"
+gem "jbuilder"
+gem "foreman"

Gemfile.lock

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+GEM
+  remote: http://rubygems.org/
+  specs:
+    activesupport (3.2.8)
+      i18n (~> 0.6)
+      multi_json (~> 1.0)
+    daemons (1.1.9)
+    eventmachine (1.0.0)
+    foreman (0.60.2)
+      thor (>= 0.13.6)
+    i18n (0.6.1)
+    jbuilder (0.8.2)
+      activesupport (>= 3.0.0)
+    multi_json (1.3.6)
+    nokogiri (1.5.5)
+    rack (1.4.1)
+    rack-protection (1.2.0)
+      rack
+    sinatra (1.3.3)
+      rack (~> 1.3, >= 1.3.6)
+      rack-protection (~> 1.2)
+      tilt (~> 1.3, >= 1.3.3)
+    thin (1.5.0)
+      daemons (>= 1.0.9)
+      eventmachine (>= 0.12.6)
+      rack (>= 1.0.0)
+    thor (0.16.0)
+    tilt (1.3.3)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  foreman
+  jbuilder
+  nokogiri
+  sinatra
+  thin

Procfile

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+web: bundle exec thin start -p $PORT

api.rb

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+# encoding: utf-8
+require "sinatra/base"
+require "nokogiri"
+require "open-uri"
+require "jbuilder"
+
+class BusaoCwb < Sinatra::Base
+  BASE_URL = "http://www.urbs.curitiba.pr.gov.br/horario-de-onibus/"
+
+  get "/api/schedules/:code.json" do |code|
+    content_type :json
+    items = []
+
+    page = Nokogiri::HTML.parse(open(BASE_URL + "#{code}"), BASE_URL, "UTF-8")
+    name = page.css("h2.left.schedule")[0].content
+    page.css("div.bg-white.round-bl-60.width96.margin-medium-top.clearfix").each do |line|
+      station = line.css("h3.schedule")[0].content
+      type = line.css("p.grey.margin0")[0].content.match("([^-]+$)")[0].strip
+      schedules = line.css("li.bold").map { |s| s.content }
+      items << { :station => station, :type => type, :schedules => schedules }
+    end
+
+    Jbuilder.encode do |json|
+      json.name name
+      json.items items do |item|
+        json.station item[:station]
+        json.type item[:type]
+        json.schedules item[:schedules]
+      end
+    end
+  end
+end

config.ru

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+require "./api"
+
+run BusaoCwb