Files
auto-archiver-api/src/core/events.py
2024-10-23 00:05:24 +01:00

46 lines
1.5 KiB
Python

import asyncio
import logging
import alembic.config
from fastapi import FastAPI
from contextlib import asynccontextmanager
from fastapi_utils.tasks import repeat_every
from loguru import logger
from db import crud, models
from db.database import get_db, make_engine
from shared.settings import get_settings
from utils.metrics import measure_regular_metrics, redis_subscribe_worker_exceptions
@asynccontextmanager
async def lifespan(app: FastAPI):
# see https://fastapi.tiangolo.com/advanced/events/#lifespan
# STARTUP
engine = make_engine(get_settings().DATABASE_PATH)
models.Base.metadata.create_all(bind=engine)
alembic.config.main(argv=['--raiseerr', 'upgrade', 'head'])
# disabling uvicorn logger since we use loguru in logging_middleware
logging.getLogger("uvicorn.access").disabled = True
asyncio.create_task(redis_subscribe_worker_exceptions(get_settings().REDIS_EXCEPTIONS_CHANNEL, get_settings().CELERY_BROKER_URL))
asyncio.create_task(refresh_user_groups())
asyncio.create_task(repeat_measure_regular_metrics())
yield # separates startup from shutdown instructions
# SHUTDOWN
logger.info("shutting down")
# CRON JOBS
@repeat_every(seconds=60 * 60) # 1 hour
async def refresh_user_groups():
with get_db() as db:
crud.upsert_user_groups(db)
@repeat_every(seconds=get_settings().REPEAT_COUNT_METRICS_SECONDS)
async def repeat_measure_regular_metrics():
await measure_regular_metrics(get_settings().DATABASE_PATH, get_settings().REPEAT_COUNT_METRICS_SECONDS)