Unity web request acting stupid.

Ok, below is the code and the utterly stupid way it's working.

I send a web request to an API on my server. It's technically a non-existent php file and it's handled by a WordPress plugin which responds with a JSON.

If the request.downloadHandler.text response looks like this:

{"status":"ok","Login":"Valid","ViewEula":true,"SI":"7036ac55b1a6aa62391cdf1b5ab567c9"}

Everything works as intended. However, if the request.downloadHandler.text looks like this:

{"status":"error","error":"Invalid username or password."}

Web request detects that as a request.isHttpError and throws a 404 error:

HTTP/1.1 404 Not Found

I'm having to throw in another check when it detects that 404 to tell it, look if it really is a json response then it's not a 404 error.

Here's the code I should be able to use.

Code (CSharp):

1.     public IEnumerator MyGetRequest(string url, WWWForm formData, Action<bool> callback)
2.     {
3.         using (UnityWebRequest request = UnityWebRequest.Post(url, formData))
4.         {
5.             // Send the request and wait for a response
6.             yield return request.SendWebRequest();
7.             Debug.Log(request.downloadHandler.text);
8.             if (request.isNetworkError || request.isHttpError)
9.             {
10.                 Debug.Log(request.error);
11.                 callback(false);
12.             }
13.             else
14.             {
15.                 if (IsValidJson(request.downloadHandler.text))
16.                 {
17.                     thischeck = FromJSON(request.downloadHandler.text);
18.                     callback(true);
19.                 }
20.                 else
21.                 {
22.                     callback(false);
23.                 }
24.             }
25.         }
26.     }

Instead, I'm having to double check to make sure the error it's detecting really is an error:

Code (CSharp):

1.     public IEnumerator MyGetRequest(string url, WWWForm formData, Action<bool> callback)
2.     {
3.         using (UnityWebRequest request = UnityWebRequest.Post(url, formData))
4.         {
5.             // Send the request and wait for a response
6.             yield return request.SendWebRequest();
7.             if (request.isNetworkError || request.isHttpError)
8.             {
9.                 if (!IsValidJson(request.downloadHandler.text))
10.                 {
11.                     callback(false);
12.                 }
13.                 else
14.                 {
15.                     thischeck = FromJSON(request.downloadHandler.text);
16.                     callback(true);
17.                 }
18.             }
19.             else
20.             {
21.                 if (IsValidJson(request.downloadHandler.text))
22.                 {
23.                     thischeck = FromJSON(request.downloadHandler.text);
24.                     callback(true);
25.                 }
26.                 else
27.                 {
28.                     callback(false);
29.                 }
30.             }
31.         }
32.     }

 

Always get network stuff working outside of Unity in either curl or PostMan, then connect a proxy such as Charles and start trying to replicate the traffic shape with UnityWebRequest.

Any other way risks wasting a lot of your time for trivial issues that only the above way will instantly reveal.