Explain how to add custom route in aiogram framework

examples/custom_route.py

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+import logging
+from aiohttp import web
+import typing
+
+from aiogram import Bot, Dispatcher, executor, types
+from aiogram.dispatcher.webhook import WebhookRequestHandler
+from aiogram.utils.executor import Executor
+from loguru import logger
+
+
+API_TOKEN = 'BOT TOKEN'
+
+# Configure logging
+logging.basicConfig(level=logging.INFO)
+
+# Initialize bot and dispatcher
+bot = Bot(token=API_TOKEN)
+dp = Dispatcher(bot)
+
+
+@dp.message_handler(commands=['start', 'help'])
+async def send_welcome(message: types.Message):
+    await message.reply("Hi!\nI'm Custom Route Example bot!\nPowered by aiogram.\nSend any request to /ping route")
+
+
+@dp.message_handler()
+async def echo(message: types.Message):
+    await message.reply(message.text, reply=False)
+
+
+
+async def ping(request: web.Request):
+    '''
+        ping pong beep
+    '''
+    return web.Response(text="I`m ok!")
+
+async def who_am_i(request: web.Request):
+    '''
+        Return bot info from this route
+    '''
+    me = await request.app['BOT_DISPATCHER'].bot.me
+    return web.json_response(me.as_json())
+
+
+
+class CustomExecutor(Executor):
+    '''
+        first way for add custom route to your bot is
+        inherit from Executor class and overwrite run_app
+        method so you can easily add own routes
+    '''
+    def run_app(self, **kwargs):
+        web.run_app(self._web_app, **kwargs, port = 9999)
+    
+    def add_subapp(self, subapp: web.Application, subapp_prefix: str):
+        self._web_app.add_subapp(subapp_prefix, subapp)
+    
+    def add_routes(self, *routes: typing.List[web.RouteDef]):
+        self._web_app.add_routes(*routes)
+    
+    def add_route(self, route: web.RouteDef):
+        self.add_routes([route])
+
+if __name__ == '__main__':
+    #App which realize custom HTTP API methods
+    custom_app = web.Application()
+    custom_app.add_routes([web.get('/ping', ping)])
+
+    #executor for our bot. Here we add Dispatcher and other bot-need stuff
+    executor = CustomExecutor(dp, skip_updates = True, check_ip=False)
+    executor.set_webhook(webhook_path='/bot')
+
+    #interesting!
+    executor.add_subapp(custom_app, '/healthchek')
+
+    #more interest!
+    executor.add_routes([web.get('/me', who_am_i)])
+    executor.add_route(web.get('/ping', ping))
+
+    #start global blocking app
+    executor.run_app()