init

backend/app/core/database.py

@@ -0,0 +1,17 @@
+from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine, AsyncSession
+from sqlalchemy.orm import DeclarativeBase
+
+from backend.app.core.config import settings
+
+engine = create_async_engine(settings.DATABASE_URL, echo=settings.DEBUG)
+
+async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+async def get_session() -> AsyncSession:
+    async with async_session() as session:
+        yield session