feat: ship MVP itinerary optimization, weather, AI key prefs, and MCP tools

backend/server/integrations/views/user_api_key_view.py

@@ -0,0 +1,33 @@
+from rest_framework import viewsets
+from rest_framework.exceptions import APIException
+from rest_framework.permissions import IsAuthenticated
+
+from integrations.models import (
+    EncryptionConfigurationError,
+    UserAPIKey,
+    get_field_fernet,
+)
+from integrations.serializers import UserAPIKeySerializer
+
+
+class APIKeyConfigurationError(APIException):
+    status_code = 503
+    default_detail = (
+        "API key storage is unavailable due to server encryption configuration."
+    )
+    default_code = "api_key_encryption_unavailable"
+
+
+class UserAPIKeyViewSet(viewsets.ModelViewSet):
+    serializer_class = UserAPIKeySerializer
+    permission_classes = [IsAuthenticated]
+
+    def initial(self, request, *args, **kwargs):
+        try:
+            get_field_fernet()
+        except EncryptionConfigurationError as exc:
+            raise APIKeyConfigurationError(detail=str(exc)) from exc
+        return super().initial(request, *args, **kwargs)
+
+    def get_queryset(self):
+        return UserAPIKey.objects.filter(user=self.request.user).order_by("provider")