fix Failure(e) to Failure(Some(e))

bin/server.py

@@ -7,6 +7,7 @@
 
 from stapi_fastapi.backends.product_backend import ProductBackend
 from stapi_fastapi.backends.root_backend import RootBackend
+from stapi_fastapi.exceptions import failure_with
 from stapi_fastapi.models.conformance import CORE
 from stapi_fastapi.models.opportunity import (
     Opportunity,
@@ -75,7 +76,7 @@ async def search_opportunities(
                 [o.model_copy(update=search.model_dump()) for o in self._opportunities]
             )
         except Exception as e:
-            return Failure(e)
+            return failure_with(e)
 
     async def create_order(
         self, product_router: ProductRouter, payload: OrderRequest, request: Request
@@ -111,7 +112,7 @@ async def create_order(
             self._orders[order.id] = order
             return Success(order)
         except Exception as e:
-            return Failure(e)
+            return failure_with(e)
 
 
 class MyOpportunityProperties(OpportunityProperties):

src/stapi_fastapi/exceptions.py

@@ -1,6 +1,12 @@
 from typing import Any, Optional
 
 from fastapi import HTTPException, status
+from returns.maybe import Some
+from returns.result import Failure
+
+
+def failure_with(e: Exception) -> Failure[Some[Exception]]:
+    return Failure(Some(e))
 
 
 class StapiException(HTTPException):

tests/backends.py

@@ -7,7 +7,7 @@
 
 from stapi_fastapi.backends.product_backend import ProductBackend
 from stapi_fastapi.backends.root_backend import RootBackend
-from stapi_fastapi.exceptions import ConstraintsException
+from stapi_fastapi.exceptions import ConstraintsException, failure_with
 from stapi_fastapi.models.opportunity import Opportunity, OpportunityRequest
 from stapi_fastapi.models.order import (
     Order,
@@ -99,7 +99,7 @@ async def create_order(
             self._orders[order.id] = order
             return Success(order)
         else:
-            return Failure(
+            return failure_with(
                 ConstraintsException(
                     f"not allowed: payload {payload.model_dump_json()} not in {[p.model_dump_json() for p in self._allowed_payloads]}"
                 )