title: Google app maker: How to list existent groups?
body: <p>I've created a new google app through their app maker interface. I've added "Google Admin Directory API" as a service and "Directory" as a data source. I created a page that will hold 2 tables, one that list all users within my domain (this is already working) and another table that lists all of the groups within my domain (not working). How can I achieve this? Can this be done through their widgets or do I have to create a script and programmatically call the admin API to then bind the data to the table?</p>