From 0100aa35952e0c9c3362280bcb64600e67f6d35c Mon Sep 17 00:00:00 2001
From: Alex Godbehere <114239316+AlexGodbehere@users.noreply.github.com>
Date: Thu, 3 Aug 2023 12:19:49 +0100
Subject: [PATCH] Add handling for transient MQTT metrics (#19)

---
 lib/mqttclient.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/mqttclient.ts b/lib/mqttclient.ts
index 8f8530e..13e2851 100644
--- a/lib/mqttclient.ts
+++ b/lib/mqttclient.ts
@@ -315,7 +315,8 @@ export default class MQTTClient {
                         },
                         name: obj.name,
                         type: obj.type,
-                        alias: alias
+                        alias: alias,
+                        transient: !(obj.properties?.recordToDB?.value)
                     };
                     return acc;
                 }, {}));
@@ -399,6 +400,10 @@ export default class MQTTClient {
     writeToInfluxDB(birth, topic: Topic, value) {
 
         if (value === null) return;
+        if (birth.transient) {
+            logger.debug(`Metric ${birth.name} is transient, not writing to InfluxDB`);
+            return;
+        }
 
         // Get the value after the last /
         let metricName = birth.name.split('/').pop();