Question Unitytls error

Hi all,

I get an error in the console from time to time:
curl error 56: Receiving data failed with unitytls error code 1048578

I use UnityWebRequest to call a back-end. Most of the time it works but sometimes it gives me this error.
My script will retry the call and it will get a restult back. But is there a way to better capture this? I do not like theses errors in console. And when the error happens. It takes a long time to make the call before it retries.

this is how I make calls.
api.url is the endpoint url
data is a string (containing json object but stringified.)
To post data instead of PUT but using a string (data) instead of a form I use the PUT webrequest but change the method to POST.

Code (CSharp):

1. protected IEnumerator ApiCall(string data, Action<string> successCallback = null, Action failCallback = null)
2.         {
3.             bool IsHttpError;
4.             bool IsNetworkError;
5.             int retries = 0;
6.  
7.  
8.             do
9.             {
10.                 MonoBehaviour.print(data);
11.  
12.                 using UnityWebRequest www = UnityWebRequest.Put(api.url, data);
13.                 www.method = "POST";
14. #if UNITY_2017_2_OR_NEWER
15.                 yield return www.SendWebRequest();
16. #else
17.             yield return request.Send();
18. #endif
19.  
20. #if UNITY_2020_2_OR_NEWER
21.                 IsHttpError = www.result == UnityWebRequest.Result.ProtocolError;
22. #else
23.                     IsHttpError = www.isHttpError;
24. #endif
25.  
26. #if UNITY_2020_2_OR_NEWER
27.                 IsNetworkError = www.result == UnityWebRequest.Result.ConnectionError;
28. #else
29.                     IsNetworkError = request.isNetworkError;
30. #endif
31.  
32.                 if (IsHttpError || IsNetworkError || !www.isDone)
33.                 {
34.                     if (retries < 3)
35.                     {
36.                         yield return new WaitForSeconds(1f);
37.                         retries++;
38.                     }
39.                     else
40.                     {
41.                         MonoBehaviour.print("Error...");
42.                         MonoBehaviour.print(www.error.ToString());
43.                         failCallback?.Invoke();
44.                         break;
45.                     }
46.                 }
47.                 else
48.                 {
49.                     MonoBehaviour.print(www.downloadHandler.text.ToString());
50.                     successCallback?.Invoke(www.downloadHandler.text);
51.                     break;
52.                 }
53.             } while (retries <= 3);
54.         }

 

It is only this TLS error.

 

I changed the code to use POST from the start instead of the method = POST trick. But no luck. Same issue.

Here is the modified code:

Code (CSharp):

1. protected IEnumerator ApiCall(string data, Action<string> successCallback = null, Action failCallback = null)
2.         {
3.             bool IsHttpError;
4.             bool IsNetworkError;
5.             int retries = 0;
6.  
7.  
8.             do
9.             {
10.                 MonoBehaviour.print(data);
11.                 UnityWebRequest www = new UnityWebRequest(api.url, "POST");
12.                 byte[] jsonToSend = new System.Text.UTF8Encoding().GetBytes(data);
13.                 www.uploadHandler = new UploadHandlerRaw(jsonToSend);
14.                 www.downloadHandler = new DownloadHandlerBuffer();
15.                 www.SetRequestHeader("Content-Type", "application/json");
16.  
17. #if UNITY_2017_2_OR_NEWER
18.                 yield return www.SendWebRequest();
19. #if UNITY_2020_2_OR_NEWER
20.                 IsHttpError = www.result == UnityWebRequest.Result.ProtocolError;
21.                 IsNetworkError = www.result == UnityWebRequest.Result.ConnectionError;
22. #else
23.                 IsHttpError = www.isHttpError;
24.                 IsNetworkError = request.isNetworkError;
25. #endif
26. #else
27.                 yield return request.Send();
28.                 IsHttpError = www.isError;
29.                 IsNetworkError = www.isError;
30. #endif
31.  
32.  
33.  
34.                 if (IsHttpError || IsNetworkError || !www.isDone)
35.                 {
36.                     if (retries < 3)
37.                     {
38.                         yield return new WaitForSeconds(1f);
39.                         retries++;
40.                     }
41.                     else
42.                     {
43.                         MonoBehaviour.print("Error...");
44.                         MonoBehaviour.print(www.error.ToString());
45.                         failCallback?.Invoke();
46.                         break;
47.                     }
48.                 }
49.                 else
50.                 {
51.                     MonoBehaviour.print(www.downloadHandler.text.ToString());
52.                     successCallback?.Invoke(www.downloadHandler.text);
53.                     break;
54.                 }
55.             } while (retries <= 3);
56.         }

 

Oh, I have opted out in privacy settings (id.unity) and also disabled editor analytics (I'm using pro).