Unity's ScriptableObjects that easily serialize to JSON

JsonSerialisableScriptableObject.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using UnityEngine;

public class JsonSerialisableScriptableObject<T> : ScriptableObject where T : JsonSerialisableScriptableObject<T>
{
    public void LoadJsonFromFile( string filename )
    {
        Debug.Log( string.Format( "[{0}] Read file {1}", typeof( T ).Name, filename ) );
        LoadJsonFromText( File.ReadAllText( filename ) );
    }

    public void LoadJsonFromText( string json )
    {
        var settings = new JsonSerializerSettings()
        {
            ObjectCreationHandling = ObjectCreationHandling.Replace
        };
        JsonConvert.PopulateObject( json, this, settings );
        OnPostJsonDeserialization();
    }

    public string DumpJson()
    {
        var settings = new JsonSerializerSettings()
        {
            ContractResolver = new DerivedTypeOnlyContractResolver<T>(),
            Formatting = Formatting.Indented
        };
        return JsonConvert.SerializeObject( this, settings );
    }

    public void DumpJsonToFile( string filename )
    {
        Debug.Log( string.Format( "[{0}] Write file {1}", typeof( T ).Name, filename ) );
        File.WriteAllText( filename, DumpJson() );
    }

    protected virtual void OnPostJsonDeserialization()
    {
    }

    private class DerivedTypeOnlyContractResolver<T> : DefaultContractResolver
    {
        protected override IList<JsonProperty> CreateProperties( Type type, MemberSerialization memberSerialization )
        {
            var properties = base.CreateProperties( type, memberSerialization );
            if ( !typeof( T ).IsAssignableFrom( type ) )
            {
                return properties;
            }
            else
            {
                return properties.Where( property => property.DeclaringType == typeof( T ) ).ToList();
            }
        }
    }
}

JsonSerialisableScriptableObjectEditor.cs

using System.IO;
using UnityEditor;
using UnityEngine;

public class JsonSerialisableScriptableObjectEditor<T> : Editor where T : JsonSerialisableScriptableObject<T>
{
    public override void OnInspectorGUI()
    {
        var scriptableObject = (T) target;
        using ( new EditorGUILayout.HorizontalScope() )
        {
            if ( GUILayout.Button( "Load File" ) )
            {
                var filename = EditorUtility.OpenFilePanel( "Load Json File", Application.dataPath, "json" );
                if ( !string.IsNullOrEmpty( filename ) && File.Exists( filename ) )
                {
                    scriptableObject.LoadJsonFromFile( filename );
                }
            }

            if ( GUILayout.Button( "Save File" ) )
            {
                var filename = EditorUtility.SaveFilePanel( "Save Json File", Application.dataPath,
                    scriptableObject.name + ".json", "json" );
                if ( !string.IsNullOrEmpty( filename ) )
                {
                    scriptableObject.DumpJsonToFile( filename );
                }
            }
        }

        base.OnInspectorGUI();
    }
}

Hey can you give me any example how can i use it because i used it but in inspector the "load file" and "save file" button not showing please help i want to serialize scriptableObjecs. Thanks :)

public class Items : JsonSerialisableScriptableObject<Items>
{
    public List<int> prices = new List<int>();
    public List<Sprite> ImagesWithStars = new List<Sprite>();
    public List<Sprite> Building = new List<Sprite>();
    public List<Sprite> Building_damaged = new List<Sprite>();
}

Hi, there is a typo in class name “JsonSeriali [s] ableScriptableObject”