<!here> I am facing a very weird issue. While using

okay, I won't be much help there then Um, one sec.

Its fine golang part is sorted I can take care of that

I'll get you my process that I used with powershell, I actually didn't use outh2 (well I did that too, but differently).

I just would need help to understand the flow and prerequisite to use OAuth for creating session in all Pure Product specially FlashArray and Pure1

basically I authenticated with rest 1.x, then from the token used there, i grab the api token, authenticate with rest 2.x and then construct my auth header.

Quick call ?

I have already did the same way, but this is api-token based authentication. This token will only work with FlashArray

I was use OAuth i.e JWT token based authentication. So once I generate the token I can use the same to execute Pure1 api as well as FlashArray api

correct, pure1 is different, entirely as you have to construct the jwt from your cert and the pure1 api. With powershell and python we have helpers that do that for you.

kind of, they will be two different jwts entirely, but the overall process would be the same, just different inputs. the array doesn't strictly use a user api, rather it has a client id and application id. That you use to create the jwt with (as well as the cert).