問題描述

我正在嘗試在 Cog 中集成一個基本的 aiohttp 網絡服務器(使用 discord-py 重寫).我正在為 cog 使用以下代碼:

I am trying to integrate a basic aiohttp webserver in a Cog (using discord-py rewrite). I am using the following code for the cog:

from aiohttp import web
import discord
from discord.ext import commands

class Youtube():

    def __init__(self, bot):
        self.bot = bot

    async def webserver(self):
        async def handler(request):
            return web.Response(text="Hello, world")

        app = web.Application()
        app.router.add_get('/', handler)
        runner = web.AppRunner(app)
        await runner.setup()
        site = web.TCPSite(runner, '192.168.1.111', 8999)
        await self.bot.wait_until_ready()
        await site.start()

def setup(bot):
    yt = Youtube(bot)
    bot.add_cog(yt)
    bot.loop.create_task(yt.webserver())

它在啟動機器人時工作正常.但是如果我在機器人運行時重新加載 cog，我會遇到一個問題:

It works fine upon starting the bot. But if I reload the cog while the bot is running, I encounter an issue:

OSError: [Errno 10048] 嘗試綁定地址時出錯('192.168.1.111', 8999):每個socket地址只使用一次(協議/網絡地址/端口)通常是允許的

OSError: [Errno 10048] error while attempting to bind on address ('192.168.1.111', 8999): only one usage of each socket address (protocol/network address/port) is normally permitted

每次重新加載 cog 時，我都想不出一種簡單/優雅的方式來釋放和重新綁定.
我很想對此提出一些建議.最終目標是擁有一個支持 youtube pubsubhubbub 訂閱的 cog.

I cannot think of an simple/elegant way to release and re bind every time the cog is reloaded.
I would love some suggestions on this. The end goal is to have a cog that supports youtube pubsubhubbub subscriptions.

可能只是有一種更好的方法可以將基本的網絡服務器集成到我的機器人中.例如，我可以在啟動機器人時使用一個守護進程(fork)(我已經有一個使用 HTTPServer 編寫的網絡服務器和一個可以處理 pubsubhubbub youtube 訂閱的 BaseHTTPRequestHandler)，但不知何故，我決定使用 aiohttp 將它集成到一個 cog 中:)

It might just be that there is a better way to integrate a basic webserver to my bot. I could use a deamon (fork) upon starting the bot for example (I already have a webserver written using HTTPServer with a BaseHTTPRequestHandler that can handle pubsubhubbub youtube subscriptions) but somehow I have my mind set on integrating it in a cog using aiohttp :)

推薦答案

    from aiohttp import web
    import asyncio
    import discord 
    from discord.ext import commands
        
        class Youtube():
        
            def __init__(self, bot):
                self.bot = bot
        
            async def webserver(self):
                async def handler(request):
                    return web.Response(text="Hello, world")
        
                app = web.Application()
                app.router.add_get('/', handler)
                runner = web.AppRunner(app)
                await runner.setup()
                self.site = web.TCPSite(runner, '192.168.1.111', 8999)
                await self.bot.wait_until_ready()
                await self.site.start()
    
            def __unload(self):
                asyncio.ensure_future(self.site.stop())
        
        def setup(bot):
            yt = Youtube(bot)
            bot.add_cog(yt)
            bot.loop.create_task(yt.webserver())

謝謝帕特里克·豪！！

這篇關于Discord-py Rewrite - Cog 中的基本 aiohttp 網絡服務器的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！