improve systemd unit file

Reviewed-on: #18
Reviewed-by: Philipp Schweizer <Philipp.schw@directbox.com>

.gitignore

@@ -0,0 +1 @@
+docker-compose.yml

README.md

@@ -56,6 +56,9 @@ Use `https://your.domain.tld/api/metrics` to retrieve useful insides for monitor
 ## Add a Location Tracker
 We use the [SenseCAP T1000-B](https://www.seeedstudio.com/SenseCAP-Card-Tracker-T1000-B-p-5698.html) from seeedstudio because of the fair price and multiple location providers. However, you can use any LoRaWAN-enabled tracker that is compatible with TTN and supports the required payload fields.
 
+## Troubleshooting
+Run `journalctl -u locationhub.service -f` to see log output.
+
 ### Onboard SenseCAP T1000-B
 1. Download and install the App [SenseCraft](https://play.google.com/store/apps/details?id=cc.seeed.sensecapmate) 
 2. Skip the user account at startup with `Skip` in the upper right corner

server/.gitignore

@@ -309,6 +309,3 @@ cython_debug/
 *.vsix
 
 config.py
-
-#docker
-docker-compose.yml

server/scripts/locationhub.service

@@ -1,22 +1,29 @@
 [Unit]
-Description=LocationHub
+Description=LocationHub Service
+Documentation=https://git.mosad.xyz/localhorst/LocationHub
 After=network.target systemd-networkd-wait-online.service mysqld.service
 
 [Service]
 Type=simple
 User=locationhub
+Group=locationhub
 WorkingDirectory=/home/locationhub/git/LocationHub/server/
-ExecStart=/usr/bin/npm run dev
+
+# Combine commands for build and start
+ExecStart=/bin/bash -c "/usr/bin/npm run build && /usr/bin/npm run start"
+
+# Restart policies
 Restart=on-failure
-StandardOutput=append:/var/log/LocationHub.log
-StandardError=append:/var/log/LocationHub.log
+RestartSec=5s
+
+# Logging configuration
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=locationhub
+
+# Resource control (optional but helps stability)
+MemoryLimit=512M
+CPUQuota=50%
 
 [Install]
 WantedBy=multi-user.target
-```
-Activate Systemd Job
-```
-systemctl daemon-reload
-systemctl enable locationhub.service
-systemctl start locationhub.service
-systemctl status locationhub.service

server/src/controller/ttnController.ts

@@ -59,20 +59,20 @@ router.post(
           ? new Date(longitudeData.timestamp)
           : undefined,
       };
-      const wifiTimestamp = (() => {
-        const messages = message.uplink_message.decoded_payload?.messages?.[0];
-        const wifiScan = messages?.find((e: { type: string }) => e.type === "Wi-Fi Scan");
-        return wifiScan?.timestamp ? new Date(wifiScan.timestamp) : undefined;
-      })();
+
+      const wifiMessage =
+        message.uplink_message.decoded_payload?.messages[0].find(
+          (e) => e.type === "Wi-Fi Scan"
+        );
 
       const wifiScans =
-        message.uplink_message.decoded_payload?.messages[0]
-          .find((e) => e.type === "Wi-Fi Scan")
-          ?.measurementValue?.map((w) => ({
+        wifiMessage?.measurementValue?.map((w) => ({
           lp_ttn_end_device_uplinks_id,
           mac: w.mac,
           rssi: w.rssi,
-            scanned_at_timestamp: wifiTimestamp,
+          scanned_at_utc: wifiMessage?.timestamp
+            ? new Date(wifiMessage.timestamp)
+            : undefined,
         })) ?? [];
 
       const ttnGatewayReceptions = message.uplink_message.rx_metadata.map(

server/src/services/wifiScanService.ts

@@ -5,14 +5,14 @@ interface CreateWifiScanParams {
   lp_ttn_end_device_uplinks_id: string;
   mac: string;
   rssi: number;
-  scanned_at_timestamp?: Date;
+  scanned_at_utc?: Date;
 }
 
 interface UpdateWifiScanParams {
   wifi_scan_id: string;
   mac?: string;
   rssi?: number;
-  scanned_at_timestamp?: Date;
+  scanned_at_utc?: Date;
 }
 
 @injectable()