We're trying to implement an identity provider for users stored in the members area of an Umbraco 13 site. I can't seem to find any documentation that explains how this is done - now that UmbracoIdentity no longer exists for v13. I've found this - https://docs.umbraco.com/umbraco-cms/reference/security/backofficeusermanager-and-notifications#example which refers to the backoffice users but nothing for the frontend users. Any help would be greatly appreciated.

Im looking for something similar but not using External Providers. OR does it have to be an external provider?

Isn't

External Provider

just not the umbraco default one? 🤔

BackOffice users are not Members, maybe you need to look at the IMemberService https://apidocs.umbraco.com/v13/csharp/api/Umbraco.Cms.Core.Services.IMemberService.html

Are there any online projects that allow users to login to the Member area, to register, Change passwords etc using IMemberService? Any thing with full example code 🙂

You can try my blog (it was written with 10 in mind, but should still be a good starting point for later versions) https://umbraco.themediawizards.co.uk/the-grimoire/