Add project files.

MyOffice.Web/Controllers/BaseApiController.cs

@@ -0,0 +1,26 @@
+namespace MyOffice.Web.Controllers;
+
+using System.Security.Authentication;
+using Core.Extensions;
+using IdentityModel;
+using Microsoft.AspNetCore.Mvc;
+using static IdentityServer4.Models.IdentityResources;
+
+public class BaseApiController : ControllerBase
+{
+	public Guid UserId
+	{
+		get
+		{
+			var subject = User.Claims.FirstOrDefault(x => x.Type == JwtClaimTypes.Subject)?.Value;
+			if (subject.IsPresent() && Guid.TryParse(subject, out var guid)) return guid;
+
+			throw new AuthenticationException("Get UserId failed");
+		}
+	}
+
+	public ObjectResult ProblemBadRequest(string? detail = null)
+	{
+		return Problem(detail, statusCode: StatusCodes.Status400BadRequest);
+	}
+}