1 files changed, 30 insertions, 0 deletions
diff --git a/src/Jellyfin.Extensions/Json/Converters/JsonGuidConverter.cs b/src/Jellyfin.Extensions/Json/Converters/JsonGuidConverter.cs
new file mode 100644
index 000000000..ea6d141cb
--- /dev/null
+++ b/src/Jellyfin.Extensions/Json/Converters/JsonGuidConverter.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Globalization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace Jellyfin.Extensions.Json.Converters
+{
+    /// <summary>
+    /// Converts a GUID object or value to/from JSON.
+    /// </summary>
+    public class JsonGuidConverter : JsonConverter<Guid>
+    {
+        /// <inheritdoc />
+        public override Guid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+            => reader.TokenType == JsonTokenType.Null
+                ? Guid.Empty
+                : ReadInternal(ref reader);
+
+        // TODO: optimize by parsing the UTF8 bytes instead of converting to string first
+        internal static Guid ReadInternal(ref Utf8JsonReader reader)
+            => Guid.Parse(reader.GetString()!); // null got handled higher up the call stack
+
+        /// <inheritdoc />
+        public override void Write(Utf8JsonWriter writer, Guid value, JsonSerializerOptions options)
+            => WriteInternal(writer, value);
+
+        internal static void WriteInternal(Utf8JsonWriter writer, Guid value)
+            => writer.WriteStringValue(value.ToString("N", CultureInfo.InvariantCulture));
+    }
+}