fix typo

backend/src/auth/db.py

@@ -0,0 +1,34 @@
+from collections.abc import AsyncGenerator
+
+from fastapi import Depends
+from fastapi_users.db import SQLAlchemyBaseUserTableUUID, SQLAlchemyUserDatabase
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from sqlalchemy.orm import DeclarativeBase
+
+import database
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+class User(SQLAlchemyBaseUserTableUUID, Base):
+    pass
+
+
+engine = create_async_engine(database.db_url, echo=False)
+async_session_maker = async_sessionmaker(engine, expire_on_commit=False)
+
+
+async def create_db_and_tables():
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+
+
+async def get_async_session() -> AsyncGenerator[AsyncSession, None]:
+    async with async_session_maker() as session:
+        yield session
+
+
+async def get_user_db(session: AsyncSession = Depends(get_async_session)):
+    yield SQLAlchemyUserDatabase(session, User)