add display for MetaData

kontor-api/src/main.py

@@ -1,10 +1,12 @@
 import logging
+from contextlib import asynccontextmanager
 
 from fastapi import FastAPI
 from fastapi.staticfiles import StaticFiles
 
 from src.apis.base import api_router
 from src.db.session import engine
+from src.db.utils import check_db_connected, check_db_disconnected
 from src.webapps.base import api_router as web_app_router
 from src.core.config import settings
 from src.db.models.base import Base
@@ -13,6 +15,12 @@ logging.basicConfig(level=logging.INFO,
                     format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
                     handlers=[logging.StreamHandler()])  # Logs to console
 
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    await check_db_connected()
+    yield
+    await check_db_disconnected()
+
 def include_router(app: FastAPI):
     app.include_router(api_router)
     app.include_router(web_app_router)
@@ -25,7 +33,7 @@ def create_tables():
 
 def start_application():
     logging.info(f"using database: {settings.DATABASE_URL}")
-    app = FastAPI(title=settings.PROJECT_NAME, version=settings.PROJECT_VERSION)
+    app = FastAPI(title=settings.PROJECT_NAME, version=settings.PROJECT_VERSION, lifespan=lifespan)
     include_router(app)
     configure_static(app)
     create_tables()