feat: basket timeout

eboutic/api.py

@@ -1,3 +1,6 @@
+from typing import Any
+
+from ninja import Status
 from ninja_extra import ControllerBase, api_controller, route
 from ninja_extra.exceptions import NotFound
 
@@ -8,13 +11,19 @@ from eboutic.models import Basket
 
 @api_controller("/etransaction", permissions=[CanView])
 class EtransactionInfoController(ControllerBase):
-    @route.get("/data/{basket_id}", url_name="etransaction_data")
+    @route.get(
+        "/data/{basket_id}",
+        url_name="etransaction_data",
+        response={200: dict[str, Any], 410: str},
+    )
     def fetch_etransaction_data(self, basket_id: int):
         """Generate the data to pay an eboutic command with paybox.
 
         The data is generated with the basket that is used by the current session.
         """
         basket: Basket = self.get_object_or_exception(Basket, pk=basket_id)
+        if basket.is_expired:
+            return Status(410, "This basket is expired.")
         try:
             return dict(basket.get_e_transaction_data())
         except BillingInfo.DoesNotExist as e: