From 14fffcf06bbcbf095a71fcdeaca5d3584b0c8173 Mon Sep 17 00:00:00 2001
From: Louis Lam <louislam@users.noreply.github.com>
Date: Sat, 24 Dec 2022 14:23:50 +0800
Subject: [PATCH] Globally fix if heartbeatJSON["msg"] is undefined

---
 server/model/monitor.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/server/model/monitor.js b/server/model/monitor.js
index 6c6ccbcc..cb60156c 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -1069,7 +1069,13 @@ class Monitor extends BeanModel {
 
             for (let notification of notificationList) {
                 try {
-                    await Notification.send(JSON.parse(notification.config), msg, await monitor.toJSON(false), bean.toJSON());
+                    // Prevent if the msg is undefined, notifications such as Discord cannot send out.
+                    const heartbeatJSON = bean.toJSON();
+                    if (!heartbeatJSON["msg"]) {
+                        heartbeatJSON["msg"] = "";
+                    }
+
+                    await Notification.send(JSON.parse(notification.config), msg, await monitor.toJSON(false), heartbeatJSON);
                 } catch (e) {
                     log.error("monitor", "Cannot send notification to " + notification.name);
                     log.error("monitor", e);