Hi Tommy,
the Reader thingy is golang io.Reader interface returned from this line bytes.NewBuffer(payloadsByte), since the http.NewRequest() method requires it as the third argument.
Anyway the actual issue turns out to be the zm *ZoomMeeting interface i initiated beforehand, and i actually manage to solve this issue, by rewriting the http.Client for ZoomMeeting.Client
Sorry to bother your holiday, thanks for taking your time to reply to this, Happy new year 