diff --git a/SessionCompanion/SessionCompanion/Controllers/UserController.cs b/SessionCompanion/SessionCompanion/Controllers/UserController.cs
index da697bf..c577be9 100644
--- a/SessionCompanion/SessionCompanion/Controllers/UserController.cs
+++ b/SessionCompanion/SessionCompanion/Controllers/UserController.cs
@@ -2,6 +2,8 @@
 using SessionCompanion.Services.Interfaces;
 using SessionCompanion.ViewModels.UserViewModels;
 using System.Threading.Tasks;
+using SessionCompanion.Extensions.EitherType;
+using SessionCompanion.ViewModels.ApiResponses;
 
 namespace SessionCompanion.Controllers
 {
@@ -24,15 +26,27 @@ namespace SessionCompanion.Controllers
             return BadRequest();
         }
 
+
+        /// <summary>
+        /// Metoda rejestruje podanego użytkownika
+        /// </summary>
+        /// <param name="model"> Model uzytkownika do zarejestrowania </param>
+        /// <returns> SuccessResponse/ErrorResponse </returns>
         [HttpPost("register")]
 
-        public async Task<IActionResult> Register(UserViewModel model)
+        public async Task<Either<SuccessResponse, ErrorResponse>> Register(UserViewModel model)
         {
             if(!ModelState.IsValid)
-                return BadRequest();
+                return new ErrorResponse()
+                           {
+                               StatusCode = 400,
+                               Message = "Given model is incorect"
+                           };
+            
             await _service.Create(model);
             await _service.SaveAsync();
-            return Ok();
+
+            return new SuccessResponse("User created");
         }
 
     }