Class won't serialize into JSON using unity's JSONUtility

Question

I have the following class, which is serializable and only has strings as fields:

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

[System.Serializable]
public class Cabeza
{

    string id, urlOBJ, urlTextura, pathOBJbajado, pathTexturaBajada;

    public string Id { get; set; }
    public string UrlOBJ { get; set; }
    public string UrlTextura { get; set; }
    public string PathOBJbajado { get; set; }
    public string PathTexturaBajada { get; set; }


    public Cabeza (string nuevoId)
    {
        Id = nuevoId;
        UrlOBJ =  nuevoId +".obj";
        UrlTextura =  nuevoId + ".png";

    }


}

As far I know it should be possible to obtain a JSON from it...However, JsonUtility.ToJson() returns just { }. How is this possible? What am I missing?

I think it is serializing your fields, which do not have a value, and therefor not showing up in the serialization result. — Maarten
– Maarten, Commented Feb 22, 2016 at 15:57

Squimmy · Accepted Answer · 2016-02-22 16:06:22Z

5

The documentation mentions (but doesn't make clear) that .ToJson() serializes fields, not properties.

I think the following code would work as you intend:

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

[System.Serializable]
public class Cabeza
{
    public string Id;
    public string UrlOBJ;
    public string UrlTextura;
    public string PathOBJbajado;
    public string PathTexturaBajada;

    public Cabeza (string nuevoId)
    {
        Id = nuevoId;
        UrlOBJ =  nuevoId +".obj";
        UrlTextura =  nuevoId + ".png";
    }
}

answered Feb 22, 2016 at 16:06

Squimmy

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