Using Discover in Rest collector to populate a collect header
OK so I am trying to pull from the Microsoft Graph API. To do that, I must first POST to get a bearer token. I assume I can use discover type of HTTP Request to get it. A JSON response will be returned with the field access_token containing what I need.
How do I use the data from access_token as a collect header for Authorization? This is a first for me so I need some hand holding here.