I started:
https://developer.cisco.com/learning/tracks/sd-wan_programmability
Module 1 and 2
issue 1:sandboxsdwan.cisco.com is not reachable anywhere from inside Cisco
issue 2: With 19.2 release of SDWAN it is required to have a session token and authentication. Your guide only has auth.
PostMan examples will not even start. Please fix
Thanks