With ASP.NET 6.0, there's a 4th coding paradigm joining MVC, WebAPI, and Razor Pages: Minimal APIs. It's a great way to create the lightest weight microservice. But are you trading everything for the small surface? We'll start with a .NET 5 project and build up to a Minimal API looking at a bunch of brand new C# 10 features along the way. Like the other 3, this is not an either/or choice, and when it makes sense, you can be really productive here too.