Aiogram

Aiogram integration is achieved with AioInjectMiddleware, which you could register on individual observers or on all observers in a router via add_to_router method:

import asyncio

from aiogram import Bot, Dispatcher, Router
from aiogram.filters import Command
from aiogram.types import Message

from aioinject import Container, Injected, Object
from aioinject.ext.aiogram import AioInjectMiddleware, inject


router = Router()


@router.message(
    Command(commands=["start"]),
)
@inject
async def start(
    message: Message,
    value: Injected[int],
) -> None:
    await message.reply(f"Injected value is {value}")


async def main() -> None:
    container = Container()
    container.register(Object(42))

    middleware = AioInjectMiddleware(container)
    middleware.add_to_router(router)

    dispatcher = Dispatcher()
    dispatcher.include_router(router)

    async with (
        container,
        Bot(token="token-here") as bot,  # noqa: S106
    ):
        await dispatcher.start_polling(bot)


if __name__ == "__main__":
    asyncio.run(main())