From f1d3e9adcc49faef97570d55add4fa5e62562ac5 Mon Sep 17 00:00:00 2001
From: Angel98518 <daniel98518@gmail.com>
Date: Thu, 22 Jan 2026 13:18:10 +0800
Subject: [PATCH] fix: MongoDB monitor JSON.parse error handling (#6778)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Frank Elsinga <frank@elsinga.de>
---
 server/model/monitor.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/server/model/monitor.js b/server/model/monitor.js
index 3b8d89dd4..2719b89a0 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -1857,6 +1857,15 @@ class Monitor extends BeanModel {
                 }
             }
         }
+
+        if (this.type === "mongodb" && this.databaseQuery) {
+            // Validate that databaseQuery is valid JSON
+            try {
+                JSON.parse(this.databaseQuery);
+            } catch (error) {
+                throw new Error(`Invalid JSON in database query: ${error.message}`);
+            }
+        }
     }
 
     /**