Merge pull request #4884 from crobibero/json-nullable-guid-converter

Add JsonConverter for Nullable Guids

(cherry picked from commit 0de45d8724d15899f27b22d95be8102e293d7041)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>

1 files changed, 33 insertions, 0 deletions

diff --git a/MediaBrowser.Common/Json/Converters/JsonNullableGuidConverter.cs b/MediaBrowser.Common/Json/Converters/JsonNullableGuidConverter.cs
new file mode 100644
index 000000000..6d96d5496
--- /dev/null
+++ b/MediaBrowser.Common/Json/Converters/JsonNullableGuidConverter.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Globalization;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace MediaBrowser.Common.Json.Converters
+{
+    /// <summary>
+    /// Converts a GUID object or value to/from JSON.
+    /// </summary>
+    public class JsonNullableGuidConverter : JsonConverter<Guid?>
+    {
+        /// <inheritdoc />
+        public override Guid? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            var guidStr = reader.GetString();
+            return guidStr == null ? null : new Guid(guidStr);
+        }
+
+        /// <inheritdoc />
+        public override void Write(Utf8JsonWriter writer, Guid? value, JsonSerializerOptions options)
+        {
+            if (value == null || value == Guid.Empty)
+            {
+                writer.WriteNullValue();
+            }
+            else
+            {
+                writer.WriteStringValue(value.Value.ToString("N", CultureInfo.InvariantCulture));
+            }
+        }
+    }
+}