♻️ Use of pydantic to manage config+env variables

FastAPI release has been updated allowing to use lifespan parameter
to prepare/shutdown sub components.

backend/backend/db/db.py

@@ -13,7 +13,7 @@ from sqlalchemy.ext.asyncio import (
 )
 
 from .base_class import Base
-
+from ..settings import DatabaseSettings
 
 logger = getLogger(__name__)
 
@@ -33,9 +33,17 @@ class Database:
         return None
 
     # TODO: Preserve UserLastStopSearchResults table from drop.
-    async def connect(self, db_path: str, clear_static_data: bool = False) -> bool:
+    async def connect(
+        self, settings: DatabaseSettings, clear_static_data: bool = False
+    ) -> bool:
+        password = settings.password
+        path = (
+            f"{settings.driver}://{settings.user}:"
+            f"{password.get_secret_value() if password is not None else ''}"
+            f"@{settings.host}:{settings.port}/{settings.name}"
+        )
         self._async_engine = create_async_engine(
-            db_path, pool_pre_ping=True, pool_size=10, max_overflow=20
+            path, pool_pre_ping=True, pool_size=10, max_overflow=20
         )
 
         if self._async_engine is not None: