From 274319dd6cd9597441ed60b1b7e89ac4098d7928 Mon Sep 17 00:00:00 2001
From: fengmk2 <fengmk2@gmail.com>
Date: Wed, 28 May 2025 07:50:05 +0000
Subject: [PATCH] fix(server): 4xx error property is optional (#12595)

close CLOUD-223

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

- **Bug Fixes**
  - Improved error handling for search requests to prevent issues when error details are missing, ensuring clearer fallback messages for unknown errors.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---
 .../server/src/plugins/indexer/providers/elasticsearch.ts   | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/backend/server/src/plugins/indexer/providers/elasticsearch.ts b/packages/backend/server/src/plugins/indexer/providers/elasticsearch.ts
index 696a39c739..46eedaa0eb 100644
--- a/packages/backend/server/src/plugins/indexer/providers/elasticsearch.ts
+++ b/packages/backend/server/src/plugins/indexer/providers/elasticsearch.ts
@@ -274,15 +274,17 @@ export class ElasticsearchProvider extends SearchProvider {
         `request failed, url: ${url}, body: ${body}, response status: ${response.status}, response body: ${JSON.stringify(data, null, 2)}`
       );
       const errorData = data as {
-        error: { type: string; reason: string } | string;
+        error?: { type: string; reason: string } | string;
       };
       let reason = '';
       let type = '';
       if (typeof errorData.error === 'string') {
         reason = errorData.error;
-      } else {
+      } else if (errorData.error) {
         reason = errorData.error.reason;
         type = errorData.error.type;
+      } else {
+        reason = `unknown error, status ${response.status}, please check the response body`;
       }
       throw new InvalidSearchProviderRequest({
         reason,