I am a bit confused as to why there is no Individual User Accounts authentication option in the latest ASP.NET Core Web API template.
Is it still possible to implement i
Individual User Accounts authentication option for the ASP.NET Core Web API is available in .NET Core 2.0 Preview 1.
Unfortunately .NET Core 2.0 Preview 1 isn't available in VS 2017 release.
But you can install Visual Studio 2017 Preview (you can use it side-by-side with VS 2017 stable version) :