Still working on getting client credential flow complete, most of the request works but still working on generating the JWT.

IdentityShroud.Core/Model/RealmSigningKeyId.cs

@@ -0,0 +1,24 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace IdentityShroud.Core.Model;
+
+[JsonConverter(typeof(RealmSigningKeyIdJsonConverter))]
+public readonly record struct RealmSigningKeyId(Guid Id)
+{
+    public override string ToString() => Id.ToString("N");
+
+    public static RealmSigningKeyId NewId()
+    {
+        return new(Guid.NewGuid());
+    }
+}
+
+public class RealmSigningKeyIdJsonConverter : JsonConverter<RealmSigningKeyId>
+{
+    public override RealmSigningKeyId Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        => new (reader.GetGuid());
+
+    public override void Write(Utf8JsonWriter writer, RealmSigningKeyId value, JsonSerializerOptions options)
+        => writer.WriteStringValue(value.ToString());
+}