Set store_ip in config.yml

app/controllers/admin/purchases_controller.rb

@@ -20,7 +20,7 @@ class Admin::PurchasesController < ApplicationController
   protected
   
   def download_purchase(purchase, url)
-    uri = URI.parse("http://localhost:3001/download/design")
+    uri = URI.parse("http://#{APP_CONFIG['store_ip']}/download/design")
     http = Net::HTTP.new(uri.host, uri.port)
     request = Net::HTTP::Post.new(uri.request_uri)