I’m looking for a solution to automate creation of Google apps (Google developer) to enable user login through user’s Google account.
A public webpage with a Google login would use the app.
It might be possible through Google API but I cannot prove this one.
The same issue would be with Facebook – I found one very old answer (=It is not possible to create an application using Graph API).
Is it possible to programmatically (through an API) modify an existing FB or Google app to add a new website (new domain).
Can you advice about the endpoints and calls, please?