Google spreadsheets account redirect_uri?

Apparently we need to know the redirect_uri for setting up a google Outh account for reading a client’s google sheets. I have been unable to locate that information in the docs (or the community).

The closest reasonable value I can find is for a different purpose: “https://elastic.snaplogic.com/api/1/rest/admin/oauth2callback/rest”

Am I close to the target?

Thanks,
TK