webserver.py

from aiohttp import web
import asyncio

class WebTest:

    def __init__(self, bot):
        self.app = web.Application()
        self.bot = bot
        self.port = 8080
        self.handler = None
        self.runner = None

    def _http_handle(self, request):
        name = request.math.info.get('name', 'Anonymous')
        text = f"Hello, {name}"
        return web.Response(text=text, content_type='text/html')

    def __unload(self):
        self.bot.loop.create_task(self.runner.cleanup())

    async def make_webserver(self):
        async def page(request):
            body = "Hello world !"
            return web.Response(text=body, content_type='text/html')

        await asyncio.sleep(10)
        self.app.router.add_get('/', page)
        self.runner = web.AppRunner(self.app)
        await self.runner.setup()
        self.handler = web.TCPSite(self.runner, 'localhost', self.port)
        await self.handler.start()
        print('WebTest started ...')