From 92d6b2834d8d740ec8af4118414fcb2fa8d5b1e6 Mon Sep 17 00:00:00 2001
From: Christian Kurz <chrikuvellberg@gmail.com>
Date: Mon, 2 Aug 2021 15:13:34 +0200
Subject: [PATCH] always send interfaces to introspection

---
 graphql/introspection.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/graphql/introspection.lua b/graphql/introspection.lua
index 526138c..e88e3f4 100644
--- a/graphql/introspection.lua
+++ b/graphql/introspection.lua
@@ -230,7 +230,7 @@ __Type = types.object({
         kind = types.list(types.nonNull(__Type)),
         resolve = function(kind)
           if kind.__type == 'Object' then
-            return kind.interfaces
+            return kind.interfaces or {}
           end
         end
       },