Unhandled Promise Rejection Warning

[mlnewbie]

Receiving an unhandled promise rejection warning for every function call.
In servicenow.js, you're sending callback(err) in the axios req catch statements, would that need to change? - Reference axios/axios#18

(node:11476) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): TypeError: callback is not a function

[ChaitanyaKaranam]

Handled callback issues in new version. This issue occurs when callback function is not passed as parameter.