EMC Unity OE and Powershell REST login

Hi,

I've been tasked to build a custom monitoring interface for our internal monitoring software with the EMC Unity OE. I'm using Powershell v4 and assumed that I could just use the normal Invoke-Restmethod, similar to how I did it with the VMAX. However, I see a number of other people have struggled (e.g. EMC Unity REST API and PowerShell - David Muegge's Blog), and all seem to fail back to either using Invoke-Webrequest or using the HTTPWebRequest out of .Net .

I only succeed by obtaining a session token by follow the example given by logging in via the CAS server:

CAS Authentication using Powershell's Invoke-RestMethod

This seems "clunky", as Invoke-Restmehod don't seem to deal as well with redirects as cURL does (?).

Has anyone any tip on how to directly use Powershell to do normal http basic authentication directly and not via the CAS?

Thanks in advance,

     -John Fjeldberg