[black] add action

.github/workflows/black.yml

@@ -0,0 +1,10 @@
+name: Lint
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: psf/black@stable

fooder/controller/product.py

@@ -66,6 +66,8 @@ class GetProductByBarCode(AuthorizedController):
                 )
                 await session.commit()
 
-                return Product.from_orm(await DBProduct.get_by_barcode(session, barcode))
+                return Product.from_orm(
+                    await DBProduct.get_by_barcode(session, barcode)
+                )
             except AssertionError as e:
                 raise HTTPException(status_code=400, detail=e.args[0])