CAS Authentication using Powershell's Invoke-RestMethod

Hi,

I need some assistance with the RESTful API using the new Powershell cmdlet Invoke-RestMethod.

The helpfile gives examples on authenticating using cURL and PERL but I would like to use PowerShell?

It was tricky to connect in the first instance due to some issue with self signed certs and the new cmdlet (more here) but I managed to implement the workaround.

Many thanks,

Martin