Django Channel Error: No handler for message type websocket.receive

Question

thread.html

<script>
//console.log(window.location)
var loc = window.location
var formData = $("#form")
var msgInput = $("#message_id")


var wsStart = 'ws://' 
if (loc.protocol == 'https:') {
    wsStart = 'wss://' 
}
var endpoint = wsStart + loc.host + loc.pathname    // EndPoint of the connection

var socket = new WebSocket(endpoint)

socket.onmessage = function(e){
    console.log("message: ", e)}

socket.onopen = function(e){
    console.log("open: ", e)  
    socket.send("Cool guys")   //TRYING TO SEND THIS VIA THE SOCKET

}

socket.onerror = function(e){
    console.log("error: ", e)}

socket.onclose = function(e){
    console.log("close: ", e)}

</script>

consumers.py

import asyncio
import json
from django.contrib.auth import get_user_model
from channels.consumer import AsyncConsumer
from channels.db import database_sync_to_async

from .models import Thread, ChatMessage

class ChatConsumer(AsyncConsumer):
    async def websocket_connect(self, event):
        print("Connected", event)
        await self.send({
            "type": "websocket.accept" 
        })
       
        # other_user = self.scope['url_route']['kwargs']['username']
        # me = self.scope['user']
        # thread_obj = await self.get_thread(me, other_user)
        # print(other_user, me)
        # print(thread_obj)

    async def websocket_recieve(self, event):
        print('Recieve', event)
        await self.send({
            "type": "websocket.send",
            "text": event,

        })
        front_text = event.get('text', None)
        if front_text is not None:
            msg_json_dict = json.loads(front_text)
            msg = msg_json_dict.get('message')
            print(msg)

            await self.send({
                "type": "websocket.send",
                "text": msg,
            })

    async def websocket_disconnect(self, event):
        print("Disconnected", event)

    # @database_sync_to_async
    # def get_thread(self, user, other_user):
    #     return Thread.objects.get_or_new(user, other_user)[0]

给出错误

  File "/home/pentester/.local/lib/python3.7/site-packages/channels/consumer.py", line 75, in dispatch
    raise ValueError("No handler for message type %s" % message["type"])
  No handler for message type websocket.receive
WebSocket DISCONNECT /messages/boy/ [127.0.0.1:37172]

No handler for the message type websocket.recieve is my headache now.

意向

我的意图是通过 thread.html 的套接字在方法 socket.onopen[ 下发送消息=30=] 但我总是收到一条错误消息，说 raise ValueError("No handler for message type %s" % message["type"]

套接字 url 模式

from channels.routing import ProtocolTypeRouter, URLRouter from django.conf.urls import url, re_path from channels.auth import AuthMiddlewareStack from channels.security.websocket import AllowedHostsOriginValidator, OriginValidator from chat.consumers import ChatConsumer application = ProtocolTypeRouter({ 'websocket':AllowedHostsOriginValidator( AuthMiddlewareStack( URLRouter( [ url(r"^messages/(?P<username>[\w.@+-]+)/$", ChatConsumer), ] ) ) ) })

Answer 1

我在这里回答是为了让事情更进一步。非常感谢您花时间添加 WebSocket URL 模式，我相信问题只是拼写错误。

把websocket_recieve改成websocket_receive就可以收到了

这些通道使用函数 _ 转换为真正的套接字层的原因 websocket.receive 所以拼写很重要。

Django Channel Error: No handler for message type websocket.receive