added fastapi based bot

examples/echo_class_based_bot_asyncio.py

@@ -2,7 +2,6 @@ from aiogram import Bot, Dispatcher, types
 import logging
 import asyncio
 
-
 API_TOKEN = "<TOKEN>"
 logging.basicConfig(level=logging.INFO)
 
@@ -20,12 +19,9 @@ class AsyncioBot:
         await message.answer(f"Asnwer: {message.text}")
 
     async def run(self):
-        asyncio.create_task(self.dp.start_polling())  
+        await self.dp.start_polling() 
 
 if __name__ == '__main__':
     bot = AsyncioBot()
-    loop = asyncio.get_event_loop()
-    loop.create_task(bot.run())
-
-    loop.run_forever()
+    asyncio.run(bot.run())
     

examples/echo_fastapi_based_bot.py

@@ -0,0 +1,55 @@
+from fastapi_utils.inferring_router import InferringRouter
+from fastapi import FastAPI, status, HTTPException
+from aiogram import Bot, Dispatcher, types
+from fastapi_utils.cbv import cbv
+import logging
+import asyncio
+
+
+API_TOKEN = "<TOKEN>"
+logging.basicConfig(level=logging.DEBUG)
+
+class AsyncioBot:
+
+    # Initialize bot and dispatcher
+    def __init__(self) -> None:
+        self.bot = Bot(token=API_TOKEN)
+        self.dp = Dispatcher(self.bot)
+
+        self.dp.register_message_handler(self.on_message)
+
+    async def on_message(self, message: types.Message):
+        print(message.get_command())
+        await message.answer(f"Asnwer: {message.text}")
+
+    async def run(self):
+        # await self.dp.start_polling() # will be blocking main :on_start: FastAPI event
+        asyncio.create_task(self.dp.start_polling())
+
+    async def close(self):
+        bot = self.bot.get_session()
+        bot.close()
+
+
+app = FastAPI()
+bot = AsyncioBot()
+router = InferringRouter()
+
+@cbv(router)
+class MainServer:
+        
+    @app.on_event("startup")
+    async def on_startup():
+        await bot.run()
+
+    @router.get("/echo", status_code=status.HTTP_200_OK)
+    async def echo(self):
+        return {
+            "status": True
+        }
+    
+    @app.on_event("shutdown")
+    async def on_shutdown():
+        await bot.close() # closing bot without error
+
+app.include_router(router)