fix: handle undefined namedType for introspection (#8390)

dotansimha · Oct 24, 2022 · 12ecbe0 · 12ecbe0
1 parent 27cc3f4
commit 12ecbe0
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diff --git a/.changeset/eighty-trees-confess.md b/.changeset/eighty-trees-confess.md
@@ -0,0 +1,5 @@
+---
+'@graphql-codegen/typescript': major
+---
+
+handle undefined namedType when including introspection type definitions
diff --git a/packages/plugins/typescript/typescript/src/index.ts b/packages/plugins/typescript/typescript/src/index.ts
@@ -65,7 +65,7 @@ export function includeIntrospectionTypesDefinitions(
     Field() {
       const type = getNamedType(typeInfo.getType());
 
-      if (isIntrospectionType(type) && !usedTypes.includes(type)) {
+      if (type && isIntrospectionType(type) && !usedTypes.includes(type)) {
         usedTypes.push(type);
       }
     },