I made a Json save system for my Unity game. I wanted to make something as generic as possible to keep the code DRY. I couldn't find much information online on how to make something generic.

Could you guys let me know what do you think of it?

So first, I have this utils class to save and load json data.

public class JsonDataManagement
{
    private static string GetPath(string fileName)
    {
        return Application.persistentDataPath + Path.AltDirectorySeparatorChar + fileName;
    }

    public static void SaveData<T>(string fileName, T data)
    {
        string path = GetPath(fileName);

        string jsonString = JsonUtility.ToJson(data);

        using StreamWriter writer = new StreamWriter(path);

        writer.Write(jsonString);
    }

    public static T LoadData<T>(string fileName)
    {
         string path = GetPath(fileName);

         using StreamReader reader = new StreamReader(path);

         string json = reader.ReadToEnd();

         return JsonUtility.FromJson<T>(json);
    }

    public static bool FileExists(string fileName)
    {
        string path = GetPath(fileName);

        return File.Exists(path);
    }
}

Then, I have this container class to store the data. As it is generic, I can pass any class to it:

public class JsonDataUser<T>
{
    public T JsonData;

    private string jsonFileName;

    public void SaveData()
    {
        JsonDataManagement.SaveData<T>(jsonFileName, JsonData);
    }

    public JsonDataUser(T _StartJsonData, string _jsonFileName)
    {
        jsonFileName = _jsonFileName;

    /// <summary>
    /// Currently we only need to load the data once as the game begins
    /// This is why we do the loading here in the constructor and why
    /// we don't have a dedicated load method
    /// </summary>

    if (JsonDataManagement.FileExists(jsonFileName) == true)
    {
        JsonData = JsonDataManagement.LoadData<T>(jsonFileName);
    }

    else
    {
        JsonData = _StartJsonData;
    }
    }
}