Intro to Web API in .NET 6 - Including Minimal APIs, Swagger, and more

Tutorial from Microsoft: Create a web API with ASP.NET Core

Host ASP.NET Core on Windows with IIS

Webapi controller without authentication

The [AllowAnonymous] attribute will skip authentication and authorization during an access request to a controller decorated with this attribute or to a specific action method decorated with this attribute

 [Authorize] 

 public class SampleController : BaseController

 {     

   [AllowAnonymous]    

    public IActionResult Get() { ... }     

    public IActionResult Post() { ... }

 }