I would like to create a user-friendly interface for users to view data collected by Google Analytics. Their Reporting API v4 looks like a good place to start, but I was wondering if anyone knows of anything existing that I could leverage?
If not, does anyone have any suggestions on how to do this?
What do you mean by interface? If you're looking for a report that can be sent out, Supermetrics may be what you're looking for.
If you're looking for a more sophisticated client dashboard, you might be able to leverage PowerBI.