fixed fixedLabels for normal metrics added traffic as gauge

main.go

@@ -743,7 +743,7 @@ func main() {
 			labels[i] = strings.ToLower(l)
 		}
 
-		m.Desc = prometheus.NewDesc(pd.FqName, pd.Help, labels, nil)
+		m.Desc = prometheus.NewDesc(pd.FqName, pd.Help, labels, pd.FixedLabels)
 		m.MetricType = getValueType(m.PromType)
 
 		// init TTL

metrics.json

@@ -51,6 +51,74 @@
 		},
 		"promType": "CounterValue"
 	},
+	{
+		"service": "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1",
+		"action": "GetTotalPacketsReceived",
+		"result": "TotalPacketsReceived",
+		"promDesc": {
+			"fqName": "gateway_wan_traffic",
+			"help": "traffic on gateway WAN interface",
+			"varLabels": [
+				"gateway"
+			],
+			"fixedLabels": {
+				"direction" : "Received",
+				"unit": "Packets"
+			}		
+		},
+		"promType": "GaugeValue"
+	},
+	{
+		"service": "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1",
+		"action": "GetTotalPacketsSent",
+		"result": "TotalPacketsSent",
+		"promDesc": {
+			"fqName": "gateway_wan_traffic",
+			"help": "traffic on gateway WAN interface",
+			"varLabels": [
+				"gateway"
+			],
+			"fixedLabels": {
+				"direction" : "Sent",
+				"unit": "Packets"
+			}		
+		},
+		"promType": "GaugeValue"
+	},
+	{
+		"service": "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1",
+		"action": "GetAddonInfos",
+		"result": "TotalBytesReceived",
+		"promDesc": {
+			"fqName": "gateway_wan_traffic",
+			"help": "traffic on gateway WAN interface",
+			"varLabels": [
+				"gateway"
+			],
+			"fixedLabels": {
+				"direction" : "Received",
+				"unit": "Bytes"
+			}		
+		},
+		"promType": "GaugeValue"
+	},
+	{
+		"service": "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1",
+		"action": "GetAddonInfos",
+		"result": "TotalBytesSent",
+		"promDesc": {
+			"fqName": "gateway_wan_traffic",
+			"help": "traffic on gateway WAN interface",
+			"varLabels": [
+				"gateway"
+			],
+			"fixedLabels": {
+				"direction" : "Sent",
+				"unit": "Bytes"
+			}		
+		},
+		"promType": "GaugeValue"
+	},	
 	{
 		"service": "urn:schemas-upnp-org:service:WANCommonInterfaceConfig:1",
 		"action": "GetAddonInfos",