automatically connect OpenConnect VPN use a service file

i use a service file

/etc/systemd/system/myVpn.service

[Unit]
Description=My Vpn Connection
After=network.target

[Service]
Type=simple
Environment=password=correcthorsebatterystaple
 ExecStart=/bin/sh -c 'echo YourPasswordHere | sudo openconnect --protocol=nc YourServerHere --user=YourUserHere --passwd-on-stdin'

Restart=always

systemctl enable myVpn

systemctl start myVpn