Update '4.restapi client.md'

4.restapi client.md

@@ -31,5 +31,28 @@ npm start
 
 ## Auto start at boot
 
-```sh
+`/lib/systemd/system/restfox.service`
+
+```ini
+[Unit]
+Description=RestFox REST POI CLient
+Documentation=https://github.com/flawiddsouza/Restfox
+After=network.target
+
+[Service]
+Environment=NODE_PORT=4004
+Type=simple
+User=root
+ExecStart=/usr/bin/node /root/Restfox/packages/web-standalone/app.js
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target
+```
+
+```sh
+systemctl daemon-reload
+systemctl start restfox
+systemctl status restfox
+systemctl enable restfox
 ```