sh_gismo/src/gismo/main.py

import asyncio
from typing import Optional

from cpl_core.application import ApplicationABC, ApplicationBuilder

from gismo.application import Application
from gismo.startup import Startup
from modules.boot_log.boot_log_extension import BootLogExtension

class Main:
    
    def __init__(self):
        self._app: Optional[ApplicationABC] = None

    async def main(self):
        app_builder = ApplicationBuilder(Application)
        app_builder.use_extension(BootLogExtension)
        app_builder.use_startup(Startup)
        self._app: ApplicationABC = await app_builder.build_async()
        await self._app.run_async()
        
    async def stop(self):
        await self._app.stop_async()

if __name__ == '__main__':
    main = Main()
    ml = asyncio.get_event_loop()
    try:
        ml.run_until_complete(main.main())
    except KeyboardInterrupt:
        ml.run_until_complete(main.stop())