Merge pull request #91 from josephschorr/optional-resource-type

Make sure to mark the resource_type as optional in the validation regex

authzed/api/v1/permission_service.proto

@@ -132,7 +132,7 @@ message RelationshipFilter {
   // resource_type is the *optional* resource type of the relationship.
   // NOTE: It is not prefixed with "optional_" for legacy compatibility.
   string resource_type = 1 [ (validate.rules).string = {
-    pattern : "^([a-z][a-z0-9_]{1,61}[a-z0-9]/)*[a-z][a-z0-9_]{1,62}[a-z0-9]$",
+    pattern : "^(([a-z][a-z0-9_]{1,61}[a-z0-9]/)*[a-z][a-z0-9_]{1,62}[a-z0-9])?$",
     max_bytes : 128,
   } ];