single method for updating cart item state / fixed problems with sinatra contrib

front-api/app.rb

@@ -2,7 +2,7 @@ require 'sinatra'
 require 'sinatra/activerecord'
 require './config'
 require 'json'
-require 'sinatra/contrib'
+require 'sinatra/cookies'
 
 Dir[File.dirname(__FILE__) + '/models/*.rb'].each {|file| require file }
 
@@ -15,16 +15,14 @@ before do
   #       domain is allowed
   headers 'Access-Control-Allow-Origin' => '*', 
           'Access-Control-Allow-Methods' => ['OPTIONS', 'GET', 'POST']  
+  
+  request.body.rewind
+  json_string = request.body.read 
+  @json_params = JSON.parse json_string if json_string.length > 1
 end
 
-helpers do
-  def json_params
-    request.body.read
-    JSON.parse request.body.read
-  end
-end
 
-register Sinatra::Contrib
+
 helpers Sinatra::Cookies