fix: users API response (#1261)

Author: leafty

components/renku_data_services/users/blueprints.py

@@ -41,9 +41,9 @@ async def _get_all(request: Request, user: base_models.APIUser, query: apispec.U
                     dict(
                         id=user.id,
                         username=user.namespace.path.first.value,
-                        email=user.email,
-                        first_name=user.first_name,
-                        last_name=user.last_name,
+                        email=user.email if user.email else None,
+                        first_name=user.first_name if user.first_name else None,
+                        last_name=user.last_name if user.last_name else None,
                     )
                     for user in users
                 ],
@@ -67,9 +67,9 @@ async def _get_self(_: Request, user: base_models.APIUser) -> JSONResponse:
                 dict(
                     id=user_info.id,
                     username=user_info.namespace.path.first.value,
-                    email=user_info.email,
-                    first_name=user_info.first_name,
-                    last_name=user_info.last_name,
+                    email=user_info.email if user_info.email else None,
+                    first_name=user_info.first_name if user_info.first_name else None,
+                    last_name=user_info.last_name if user_info.last_name else None,
                     is_admin=user.is_admin,
                 ),
             )
@@ -102,9 +102,9 @@ async def _get_one(_: Request, user: base_models.APIUser, user_id: str) -> JSONR
                 dict(
                     id=user_info.id,
                     username=user_info.namespace.path.first.value,
-                    email=user_info.email,
-                    first_name=user_info.first_name,
-                    last_name=user_info.last_name,
+                    email=user_info.email if user_info.email else None,
+                    first_name=user_info.first_name if user_info.first_name else None,
+                    last_name=user_info.last_name if user_info.last_name else None,
                 ),
             )