ShrinkDataSaver/Runtime/DataSerializer.cs

using System.Text;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace ShrinkDataSaver
{
    public static class DataSerializer
    {
        private static readonly JsonSerializerSettings Settings = new()
        {
            NullValueHandling    = NullValueHandling.Ignore,
            DefaultValueHandling = DefaultValueHandling.Include,
            Formatting           = Formatting.None
        };

        public static byte[] Serialize<T>(T obj)
            => Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(obj, Settings));

        public static T Deserialize<T>(byte[] data)
            => JsonConvert.DeserializeObject<T>(Encoding.UTF8.GetString(data), Settings);

        public static JObject ToJObject(byte[] data)
            => JObject.Parse(Encoding.UTF8.GetString(data));

        public static byte[] FromJObject(JObject obj)
            => Encoding.UTF8.GetBytes(obj.ToString(Formatting.None));
    }
}