worker.py 文件源码

def post(self):
        amount = int(self.request.get('amount'))

        # This task should run at most once per second because of the datastore
        # transaction write throughput.
        @ndb.transactional
        def update_counter():
            counter = Counter.get_or_insert(COUNTER_KEY, count=0)
            counter.count += amount
            counter.put()

        update_counter()