import json
from aiogram import types
from aiogram import Bot, Dispatcher, types
from aiogram.types import Message

bot = Bot(token='', parse_mode="HTML")
dp = Dispatcher()

@dp.message()
async def test(message: Message) -> None:
    await message.answer(message.text)

async def handler(event, context):
    up = json.loads(event['body'])

    my_update = types.update.Update(update_id=up['update_id'], message=up['message'])
    await dp.feed_update(bot=bot, update=my_update)      
    
    return {
        'statusCode': 200,
        'body': '!'
    }