Question

我正在构建基于此示例（https://github.com/andrewgodwin/channels-examples/blob/master/multichat/chat/routing.py）的聊天应用程序。当javascript运行（套接字已经打开， ws_connect 已经执行）时，它会将JSON发送到websocket上。此＆＃39;消息＆＃39; 将路由到 ws_receive ，然后将JSON加载到＆＃39;有效负载＆＃39;变量。消息＆＃39; reply_channel 被添加到有效负载变量（dict）中。使用Channels命令，有效载荷随后被发送并路由到 chat_join ，在那里它应该只执行硬编码的message.reply_channel.send。

所有步骤直到

payload['reply_channel'] = message.content['reply_channel']

工作正常。但是，有效负载未被路由到 chat_join 消费者。如果正确路由，则无法正确读取reply_channel值，因此消息不会被发送回客户端。

似乎无法在这里找到突破点。需要帮助修复此代码。

的.js

//Join Room
socket.send(JSON.stringify({
    "command": "join",
    "room": "102"
}));

routing.py

from channels.routing import route
from MyProject.consumers import ws_connect, ws_receive, chat_join

websocket_routing = [
    route("websocket.connect", ws_connect),
    route("websocket.receive", ws_receive),    
]

custom_routing = [
    route("chat.receive", chat_join, command=r'^join$'),
]

consumers.py

from channels import Channel
def ws_receive(message):
    payload = json.loads(message['text'])
    payload['reply_channel'] = message.content['reply_channel']
    Channel("chat.receive").send(payload)

def chat_join(message):
    message.reply_channel.send({
        "text": json.dumps({
            "alpha": "1",
            "beta": "2",
        }),
    })

Answer 1

Javascript文件应该使用"text"密钥发送数据。

来源：https://channels.readthedocs.io/en/latest/asgi.html#send-close

Answer 2

我尝试将routing.py更改为如下所示。我将自定义路由包含在websocket_routing中作为普通路由，它开始为我工作。希望这会有所帮助。

websocket_routing = [
    # Called when WebSockets connect
    route("websocket.connect", ws_connect),

    # Called when WebSockets get sent a data frame
    route("websocket.receive", ws_receive), 

    # Called when WebSockets disconnect
    route("websocket.disconnect", ws_disconnect),    


    #Custom Routing
    #Join Chat
    route("chat.receive", chat_join, command=r'^join$'),
    route("chat.receive", chat_send, command=r'^send$'),
]

Django频道 - 内部自定义路由无法正常工作

2 个答案: