diff --git a/Sledgemapper.Api/Controllers/SessionController.cs b/Sledgemapper.Api/Controllers/SessionController.cs
index b644773..fbf2f7c 100644
--- a/Sledgemapper.Api/Controllers/SessionController.cs
+++ b/Sledgemapper.Api/Controllers/SessionController.cs
@@ -12,21 +12,20 @@ namespace Sledgemapper.Api.Controllers
     public class SessionController : ControllerBase
     {
         private readonly IMediator _mediator;
-
-        public SessionController(IMediator mediator) { _mediator = mediator; }
+        private int UserId => int.Parse(HttpContext.User.Identity.Name);
+        
+        public SessionController(IMediator mediator) => _mediator = mediator;
 
         [HttpPost]
         public async Task<bool> Post(string sessionName)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            var result = await _mediator.Send(new NewSessionCommand(sessionName, userId));
+            var result = await _mediator.Send(new NewSessionCommand(sessionName, UserId));
             return result;
         }
 
         [HttpGet]
         public async Task<Session> Get(string sessionName)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
             var result = await _mediator.Send(new GetMapSnapshotCommand(sessionName));
             return result;
         }
@@ -34,50 +33,43 @@ namespace Sledgemapper.Api.Controllers
         [HttpPost("snapshot")]
         public async Task Post(string sessionName, [FromBody] Session session)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            await _mediator.Send(new NewSnapshotCommand(sessionName, session, userId));
+            await _mediator.Send(new NewSnapshotCommand(sessionName, session, UserId));
         }
 
         [HttpPost("tile")]
         public async Task Post(string sessionName, [FromBody] Tile tile)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            await _mediator.Send(new NewTileCommand(sessionName, tile, userId));
+            await _mediator.Send(new NewTileCommand(sessionName, tile, UserId));
         }
 
         [HttpPost("overlay")]
         public async Task Post(string sessionName, [FromBody] Overlay overlay)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            await _mediator.Send(new NewOverlayCommand(sessionName, overlay, userId));
+            await _mediator.Send(new NewOverlayCommand(sessionName, overlay, UserId));
         }
 
         [HttpPost("wall")]
         public async Task Post(string sessionName, [FromBody] Wall wall)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            await _mediator.Send(new NewWallCommand(sessionName, wall, userId));
+            await _mediator.Send(new NewWallCommand(sessionName, wall, UserId));
         }
 
         [HttpDelete("tile")]
         public async Task Delete(string sessionName, [FromBody] Tile tile)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            await _mediator.Send(new DeleteTileCommand(sessionName, tile, userId));
+            await _mediator.Send(new DeleteTileCommand(sessionName, tile, UserId));
         }
 
         [HttpDelete("overlay")]
         public async Task Delete(string sessionName, [FromBody] Overlay overlay)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            await _mediator.Send(new DeleteOverlayCommand(sessionName, overlay, userId));
+            await _mediator.Send(new DeleteOverlayCommand(sessionName, overlay, UserId));
         }
 
         [HttpDelete("wall")]
         public async Task Delete(string sessionName, [FromBody] Wall wall)
         {
-            var userId = int.Parse(HttpContext.User.Identity.Name);
-            await _mediator.Send(new DeleteWallCommand(sessionName, wall, userId));
+            await _mediator.Send(new DeleteWallCommand(sessionName, wall, UserId));
         }
     }
 }
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