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-rw-r--r--gn_auth/auth/authorisation/data/views.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/gn_auth/auth/authorisation/data/views.py b/gn_auth/auth/authorisation/data/views.py
index 502c802..ef3d119 100644
--- a/gn_auth/auth/authorisation/data/views.py
+++ b/gn_auth/auth/authorisation/data/views.py
@@ -132,6 +132,10 @@ def authorisation() -> Response:
                         authconn, _dset_traits["ProbeSet"]))
             for _rrow in _rtypes
         }
+        if len(_all_resources.keys()) == 0:
+            raise NotFoundError(
+                "No resource(s) found for specified trait(s). Do(es) the "
+                "trait(s) actually exist?")
         _resource_ids = tuple(_all_resources.keys())