我在django 2.0 nad django-channlels 2.0中有一个需要托管的项目，我按照文档进行操作，能够在localhost和redis上运行通道，但是当我在pythonanywhere上托管时，它表明它不支持websocket，所以我托管在heroku上，但在那里他们要求我不必运行redis的信用卡信息的验证。是否有其他托管网站可以免费运行redis erver

或者在没有channel_layer和redis的情况下实现通道是否可行。我的代码在本地主机上运行良好，但不能免费在线托管。

class PageConsumer(WebsocketConsumer):
    def connect(self, **kwargs):
        self.accept()
        channel_layer = get_channel_layer()
        async_to_sync(channel_layer.group_send)("admin", {"type": "analytics.admin_message", "message": "plus"})

    def disconnect(self, close_code):
        channel_layer = get_channel_layer()
        async_to_sync(channel_layer.group_send)("admin", {"type": "analytics.admin_message", "message": "minus"})

其对应的接收者

class ChatConsumer(WebsocketConsumer):
    def connect(self, **kwargs):
        self.accept()
        async_to_sync(self.channel_layer.group_add)("admin", self.channel_name)

    def disconnect(self, close_code):
        async_to_sync(self.channel_layer.group_discard)("admin", self.channel_name)

    def analytics_admin_message(self, something):
        if something["message"] == "plus":
            self.send(text_data=json.dumps({
                'message': "plus"
            }))

        else:
            self.send(text_data=json.dumps({
                'message': "minus"
            }))

    def receive(self, text_data):
        print("data hai bhyi", text_data)
        text_data_json = json.loads(text_data)
        message = text_data_json['message']

        self.send(text_data=json.dumps({
            'message': message
        }))

settings.py …