curl --location --request GET 'https://api.nxsys.tech/nxsys/oauth/grant-token-url?clientId&clientSecret&redirectUri'
{
"url": "https://portal.nxsys.tech/oauth/authorize?clientId=NXSYS.ONZEYLYLO38TL9XEBE3JQUPGTYUQMZ7S&redirectUri=https://yourapp.com/callback&response_type=code"
}