channels2.X 學習筆記

-?No module named 'asgiref.sync' 報錯解決：

# 報錯原因：
"""
django版本過低， 卸載最新版本的 channels 使用2.x 版本的
"""
pip3 uninstall channels

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- 安裝：

"""
Django 1.11.15 版本不支持最新的 channels
"""pip3 install channels==2.1.4

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- 在django中的配置：

　　- 配置settings.py文件：

# 添加APP
INSTALLED_APPS = ['django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles','channels',"app01.apps.App01Config",
]# 其他配置文件 ...# ASGI 的路由設置
ASGI_APPLICATION = 'ChannelDemo.routing.application'
CHANNEL_LAYERS = {"default": {"BACKEND": "asgiref.inmemory.ChannelLayer","ROUTING": "ChannelDemo.routing.channel_routing",},
}

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　　- channels的路由配置：

# 在項目settings文件同級目錄中新增routing.py
from channels.auth import AuthMiddlewareStack
from channels.routing import ProtocolTypeRouter, URLRouter
import app01.routingapplication = ProtocolTypeRouter({'websocket': AuthMiddlewareStack(URLRouter(app01.routing.websocket_urlpatterns  # 指明路由文件是app01.routing.py
        )),
})

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　　- app01中的routing.py 文件：

from django.conf.urls import urlfrom . import consumerswebsocket_urlpatterns = [url(r'^ws/deploy/(?P<service_name>[^/]+)/$', consumers.DeployResult),url(r'^ws/$', consumers.ws),
]

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?　　- 視圖文件 consumers.py ：

　　待續。。。

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