Fixed the processing to be done in backend now.

server/src/db/mongo/modules/monitorModule.js

@@ -326,10 +326,53 @@ class MonitorModule {
 		}
 	};
 
+	processNetworkRates = (checks) => {
+		if (!Array.isArray(checks) || checks.length === 0) return [];
+
+		const sorted = [...checks].sort((a, b) => new Date(a._id) - new Date(b._id));
+		const lastSeen = {};
+
+		for (const check of sorted) {
+			if (!Array.isArray(check.net)) {
+				check.net = [];
+				continue;
+			}
+
+			const newNet = [];
+
+			for (const iface of check.net) {
+				const prev = lastSeen[iface.name];
+				const t1 = new Date(check._id);
+
+				if (prev) {
+					const t0 = new Date(prev._id);
+					const dt = (t1 - t0) / 1000;
+
+					if (dt > 0) {
+						newNet.push({
+							name: iface.name,
+							avgBytesRecv: (iface.avgBytesRecv - prev.avgBytesRecv),
+							avgPacketsRecv: (iface.avgPacketsRecv - prev.avgPacketsRecv),
+							avgErrOut: iface.avgErrOut - prev.avgErrOut,
+							avgDropOut: iface.avgDropOut,
+						});
+					}
+				}
+
+				lastSeen[iface.name] = { ...iface, _id: check._id };
+			}
+
+			check.net = newNet;
+		}
+
+		return sorted;
+	};
+
 	getHardwareDetailsById = async ({ monitorId, dateRange }) => {
 		try {
 			const monitor = await this.Monitor.findById(monitorId);
 			const dates = this.getDateRange(dateRange);
+
 			const formatLookup = {
 				recent: "%Y-%m-%dT%H:%M:00Z",
 				day: "%Y-%m-%dT%H:00:00Z",
@@ -337,13 +380,19 @@ class MonitorModule {
 				month: "%Y-%m-%dT00:00:00Z",
 			};
 			const dateString = formatLookup[dateRange];
+
 			const hardwareStats = await this.HardwareCheck.aggregate(buildHardwareDetailsPipeline(monitor, dates, dateString));
 
-			const monitorStats = {
+			const stats = hardwareStats[0];
+			if (stats && stats.checks) {
+				// Replace net with per-second rates
+				stats.checks = this.processNetworkRates(stats.checks);
+			}
+
+			return {
 				...monitor.toObject(),
-				stats: hardwareStats[0],
+				stats,
 			};
-			return monitorStats;
 		} catch (error) {
 			error.service = SERVICE_NAME;
 			error.method = "getHardwareDetailsById";