curl -v --data-binary @default.ovpn -H "Cookie: TOKEN=#####" -X PUT raspberrypi/vpn/rest/default/config
(Please use a valid auth token, you can use the token which is transferred as a cookie while communicating with the UI)
http://raspberrypi/vpn/rest/default/log
http://raspberrypi/#/main/settings/network/tun0