Merge pull request #192 from rkaneko/issue-191-fix-validation-func

fix: Fix interpretation of the introspection result

src/api/compute.ts

@@ -41,7 +41,7 @@ export default async function compute(
             `A valid GraphQL introspection query result should be contained in : ${option.schema} .`
         );
     }
-    const schema = buildClientSchema(schemaJson.data);
+    const schema = buildClientSchema(schemaJson.data || schemaJson);
     for (const documentNode of computed.values()) {
         validateDocumentNode(schema, documentNode);
     }