1 files changed, 19 insertions, 25 deletions
diff --git a/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs b/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs
index 2fdd1e489..cbd32ed82 100644
--- a/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs
+++ b/Jellyfin.Api/Attributes/HttpSubscribeAttribute.cs
@@ -2,34 +2,28 @@ using System;
 using System.Collections.Generic;
 using Microsoft.AspNetCore.Mvc.Routing;
 
-namespace Jellyfin.Api.Attributes
+namespace Jellyfin.Api.Attributes;
+
+/// <summary>
+/// Identifies an action that supports the HTTP GET method.
+/// </summary>
+public sealed class HttpSubscribeAttribute : HttpMethodAttribute
 {
+    private static readonly IEnumerable<string> _supportedMethods = new[] { "SUBSCRIBE" };
+
     /// <summary>
-    /// Identifies an action that supports the HTTP GET method.
+    /// Initializes a new instance of the <see cref="HttpSubscribeAttribute"/> class.
     /// </summary>
-    public class HttpSubscribeAttribute : HttpMethodAttribute
+    public HttpSubscribeAttribute()
+        : base(_supportedMethods)
     {
-        private static readonly IEnumerable<string> _supportedMethods = new[] { "SUBSCRIBE" };
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="HttpSubscribeAttribute"/> class.
-        /// </summary>
-        public HttpSubscribeAttribute()
-            : base(_supportedMethods)
-        {
-        }
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="HttpSubscribeAttribute"/> class.
-        /// </summary>
-        /// <param name="template">The route template. May not be null.</param>
-        public HttpSubscribeAttribute(string template)
-            : base(_supportedMethods, template)
-        {
-            if (template == null)
-            {
-                throw new ArgumentNullException(nameof(template));
-            }
-        }
     }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="HttpSubscribeAttribute"/> class.
+    /// </summary>
+    /// <param name="template">The route template. May not be null.</param>
+    public HttpSubscribeAttribute(string template)
+        : base(_supportedMethods, template)
+        => ArgumentNullException.ThrowIfNull(template);
 }