consider the following situation:
a) Users have accounts at google
b) Same Users have accounts for ms azure (or github, …)
c) I have a client that consumes services from google and azure
how to ensure a single login for a user (be google or azure) and
call the google service for e.g. for “geolocation” followed by azure call e.g. for NLP sentiment service. Respecting the users security assertions.