Json parse error in WebGL

Target Platforms Web
1

9428726--1321835--Captura de tela 2023-10-24 163752.png
9428726--1321835--Captura de tela 2023-10-24 163752.png1916×624 70.6 KB
I’m trying to deserialize in a WebGL build and I keep getting this error, but it works fine in editor. I’m using JsonUtilities, but I also triet Newtonsoft.Json.

public class WebRequestTest : MonoBehaviour
{

    private PlayerData playerData;
    private MainScreen mainScreen;

    [SerializeField] private string apiUrl = "https://exemplo.com/api/seu_endpoint"; //API que deseja consumir
    [SerializeField] private string authToken = "SeuTokenAqui";
 
    private string json;


    private void Start()
    {
        mainScreen = FindObjectOfType<MainScreen>();
        playerData = FindObjectOfType<PlayerData>();
        StartCoroutine(FazerRequisicao());
    }

    public void CallRequest()
    {
        StartCoroutine(FazerRequisicao());
    }

    IEnumerator FazerRequisicao()
    {
        using (UnityWebRequest request = UnityWebRequest.Get(apiUrl))
        {
            request.downloadHandler = new DownloadHandlerBuffer();
            request.SetRequestHeader("Authorization", "Bearer " + authToken); // Adiciona o token como um cabeçalho de autorização

            yield return request.SendWebRequest();

            if (request.result == UnityWebRequest.Result.ConnectionError || request.result == UnityWebRequest.Result.ProtocolError)
            {
                Debug.LogError("Erro na requisição: " + request.error);
                mainScreen.RequestResponse(false);
            }
            else
            {
                mainScreen.RequestResponse(true);
                // A requisição foi bem-sucedida. Agora você pode analisar os dados JSON.
                json = request.downloadHandler.text;
                Debug.Log("Resposta da API: " + json);

                // Analisar o JSON para extrair o valor desejado (suponhamos que seja um campo "value" no JSON)
                UserData data = JsonUtility.FromJson<UserData>(json);
                // UserData data = JsonConvert.DeserializeObject<UserData>(json);
         
                if (data != null)
                {
                    float cash = data.user.cash;
                    playerData.NewUserData(cash, authToken);
                }
                else
                {
                    Debug.LogError("Erro ao analisar o JSON.");
                }
            }
        }
    }

    [System.Serializable]
    public class UserData
    {
        public User user;
    }

    [System.Serializable]
    public class User
    {
        public float cash;
    }
}
}


I thought that Firefox was causing it, but even in Microsoft Explorer I got this error

2

You may want to enable full stack traces in WebGL, see Unity - Manual: Debug and troubleshoot WebGL builds for more details.

With that, you might get more information about the cause of the issue.

1 Like
3

And verify that you get the exact same json response as in the editor.

1 Like
4

For some reason it’s getting a html file, but in editor is a json. Do you have any idea why this is happening?

5

No, that’s for you to find out. Verify that you are requesting the exact same URL and header values.

Btw, this seems odd to me:
request.downloadHandler = new DownloadHandlerBuffer();

I have not needed to assign a new handler. When the request returns, the downloadHandler is set automatically in my cases. However I worked with editor-only web requests, not runtime.

1 Like