Comments

index.js

@@ -53,6 +53,10 @@ client.collectDefaultMetrics({register});
   help: 'The total number of client connections'
 }); */
 
+
+// Declaring custom metrics to monitor the chatserver
+// These metrics will monitor the system during runtime
+// Prometheus will scrape these metrics and provide them to Gafana
 const messageCounterIn = new client.Counter({
   name: 'node_message_counter_in',
   help: 'Counts the amount of incoming messages from clients to server'
@@ -116,7 +120,7 @@ const totalClientsInDB = new client.Gauge({
     });
 global.TOTALCLIENTSINDB = totalClientsInDB;
 
-
+// Register the metrics, to be collected in Prometheus database
 register.registerMetric(messageCounterIn);
 register.registerMetric(messageCounterOut);
 register.registerMetric(messageAll);