Modify to use autocomplete service

app/controllers/search_controller.rb

@@ -50,8 +50,9 @@ class SearchController < ApplicationController
 
   def autocomplete
     begin
+      auto = AutocompleteService.new
       query = params["q"] || ""
-      json_data = open( "http://localhost:4242?q=#{query}" ).read
+      json_data = auto.query(query)
       render text: json_data
     rescue
       render text: "[]"