Can a public IP address be used as Google OAuth redirect URI?

This is not currently supported. I filed a feature request and will update on progress. Update: Essential app verification activities have continued to make support of IP address-based apps unlikely. These verification activities are necessary to provide protections against abuse of user accounts. In addition, the cost of setting up dedicated domains has been reduced … Read more

Force google account chooser

The following parameter is supported in OAuth2 authorization URLs: prompt Currently it can have values none, select_account, and consent. none: Will cause Google to not show any UI, and therefore fail if user needs to login, or select an account in case of multi-login, or consent if first approval. It can be run in an … Read more