I'm using PowerShell 5, but I'm assuming the same issue applies to older versions.

I'm making a script to pull data from one of our applications (ConnectWise), which has a REST API. For large datasets, the response is paginated. The first x number of records are returned, and the response header includes a "Link" property that links to the next page of information.

This is an example of the response header (pulled from Postman):

Cache-Control →no-cache
Content-Length →105764
Content-Type →application/json; charset=utf-8
Date →Tue, 12 Jul 2016 19:50:38 GMT
Expires →-1
Link →<https://connectwise.contoso.com/v4_6_release/apis/3.0/company/configurations?conditions=name="SaaS/Hosted Information"&pageSize=25&page=2>; rel="next", <https://connectwise.contoso.com/v4_6_release/apis/3.0/company/configurations?conditions=name="SaaS/Hosted Information"&pageSize=25&page=8>; rel="last"
Pragma →no-cache
Server →Microsoft-IIS/8.5
X-AspNet-Version →4.0.30319
X-Powered-By →ASP.NET
x-server-name →CONNECTWISE

I can't figure out how to get the response header information from Invoke-RestMethod. I've tried:

• Setting a session variable, and looking to see if it contains the response headers (no luck)
• Setting an error variable, and looking to see if it contains response headers (no luck)
• Looked at all the variables defined in all scopes to see if there is a $response variable or something that holds the response headers (no luck)
• Looking at the payload returned from Invoke-RestMethod to see if it embeds it in the response somewhere (no luck).

Am I missing something, or does Invoke-RestMethod just discard the response headers entirely? Any ideas on how to get the response headers without writing my own function?\

EDIT: Looks like Invoke-RestMethod just throws away the response headers unless there is an error. Using Invoke-WebRequest is the workaround. Thanks for the help everyone!