Update ResourceController

samples/Mvc.Server/Controllers/ResourceController.cs

@@ -1,20 +1,28 @@
-using System.Security.Claims;
+using System.Threading.Tasks;
 using AspNet.Security.OAuth.Validation;
 using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
+using Mvc.Server.Models;
 
 namespace Mvc.Server.Controllers {
     [Route("api")]
     public class ResourceController : Controller {
+        private readonly UserManager<ApplicationUser> _userManager;
+
+        public ResourceController(UserManager<ApplicationUser> userManager) {
+            _userManager = userManager;
+        }
+
         [Authorize(ActiveAuthenticationSchemes = OAuthValidationDefaults.AuthenticationScheme)]
         [HttpGet("message")]
-        public IActionResult GetMessage() {
+        public async Task<IActionResult> GetMessage() {
-            var identity = User.Identity as ClaimsIdentity;
+            var user = await _userManager.GetUserAsync(User);
-            if (identity == null) {
+            if (user == null) {
                 return BadRequest();
             }
 
-            return Content($"{identity.Name} has been successfully authenticated.");
+            return Content($"{user.UserName} has been successfully authenticated.");
         }
     }
 }