Details

To get the user id from claims, create a Utilities folder

Create a UserContextService class

Inject the IHttpContextAccessor in the constructor and create a
private backing field for it

Create a GetUserId method to get the user id from the claims

public class UserContextService
{
   private readonly IHttpContextAccessor _httpContextAccessor;
   public UserContextService(IHttpContextAccessor httpContextAccessor)
   {
       _httpContextAccessor = httpContextAccessor;
   }
   public string? GetUserId()
   {
       var userId = _httpContextAccessor.HttpContext?.User?
           .FindFirstValue(ClaimTypes.NameIdentifier);
       return userId;
   }
}