From 28651bbbadef838bd795bd8bfa1fb9c407291296 Mon Sep 17 00:00:00 2001
From: Arda TANRIKULU <ardatanrikulu@gmail.com>
Date: Thu, 11 Aug 2022 09:39:59 +0300
Subject: [PATCH] If additionalProperties is basically type: string, ignore
 (#4274)

---
 packages/json-machete/src/healJSONSchema.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/json-machete/src/healJSONSchema.ts b/packages/json-machete/src/healJSONSchema.ts
index 3db58a2a5f746..72d748d57f9b1 100644
--- a/packages/json-machete/src/healJSONSchema.ts
+++ b/packages/json-machete/src/healJSONSchema.ts
@@ -183,7 +183,11 @@ export async function healJSONSchema(
           if (typeof subSchema.additionalProperties === 'object') {
             delete subSchema.additionalProperties.readOnly;
             delete subSchema.additionalProperties.writeOnly;
-            if (Object.keys(subSchema.additionalProperties).length === 0) {
+            const additionalPropertiesKeys = Object.keys(subSchema.additionalProperties);
+            if (
+              additionalPropertiesKeys.length === 0 ||
+              (additionalPropertiesKeys.length === 1 && subSchema.additionalProperties.type === 'string')
+            ) {
               logger.debug(
                 `${path} has an empty additionalProperties object. So this is invalid. Replacing it with 'true'`
               );