Initial commit

py_service/app/database.py

@@ -0,0 +1,24 @@
+from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
+from app.config import get_settings
+
+settings = get_settings()
+
+engine = create_async_engine(
+    settings.DATABASE_URL,
+    echo=settings.APP_ENV == "development",
+    pool_pre_ping=True,
+    pool_size=10,
+    max_overflow=20,
+)
+
+async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
+
+
+async def get_db() -> AsyncSession:
+    async with async_session() as session:
+        try:
+            yield session
+            await session.commit()
+        except Exception:
+            await session.rollback()
+            raise