Lets say company A has a corporate gmail account set up.
Company B needs access to the calendar events (primarily free busy times) of users of Company A via the google calendar REST API.
I see some methods described here https://developers.google.com/google-apps/calendar/ on setting up api access.
But its not clear which is the best method to go about doing this..Can someone describe a high level overview of how this can be achieved ? I am familiar with the google calendar api documentation and the pre-requisites required to enable calendar REST API...What is not clear is how to apply that to the described scenario.