better return system

invite_sys.py

@@ -3,16 +3,15 @@ from config import *
 from flask import Flask, redirect
 from os import environ
 
-aura = Aura('aura.json')
+aura = Aura()
 app = Flask(__name__)
 
 @app.route('/<id>')
 def root(id):
-    aura.load()
     user = aura.get(str(id))
     if user:
         user.balance+=120
-        aura.save()
+        aura.update(user)
     return redirect(INVITE, code=302)
 
 app.run('127.0.0.1', INVITE_SERVER_PORT)