def post(self):
register_fields = json.loads(self.request.body)
#Check if email exists:
email = register_fields["email"]
name = register_fields["name"]
city = register_fields["city"]
query = ndb.gql("SELECT * FROM User WHERE email=:1", email).fetch()
if not query:
user = User()
user.email = email
user.name = name
user.city = city
user.put()
else:
logging.info("User exists")
