POST to HTTP not working

Question

I've been trying to get this tutorial to work with UnityWebRequest. GET works fine, but when I try to POST I keep getting this error:

 register.php:
 Error: Cannot connect to destination host
 UnityEngine.Debug:Log(Object)
 <Register>d__10:MoveNext() (at Assets/Scripts/RegistrationMenu.cs:63)
 UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

Both register.php and test.php work as expected in browser. Here's the C# code:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using TMPro;
 using UnityEngine.UI;
 using UnityEngine.Networking;
 
 public class RegistrationMenu : MonoBehaviour
 {
     [SerializeField] GameObject MainPanel;
     [SerializeField] GameObject ScorePanel;
     [SerializeField] TMP_InputField NameField;
     [SerializeField] TMP_InputField PasswordField;
     [SerializeField] TMP_InputField PasswordConfirmField;
     [SerializeField] Button SubmitButton;
     [SerializeField] string RegisterURL = "http://184.88.11.231/gardenlife/register.php";
 
     public void Start()
     {
         StartCoroutine(test());
     }
     private IEnumerator test()
     {
         var TestURL = "http://184.88.11.231/gardenlife/test.php";
         UnityWebRequest webRequest = UnityWebRequest.Get(TestURL);
         // Request and wait for the desired page.
         yield return webRequest.SendWebRequest();
 
         string[] pages = TestURL.Split('/');
         int page = pages.Length - 1;
 
         if (webRequest.isNetworkError)
         {
             Debug.Log(pages[page] + ": Error: " + webRequest.error);
         }
         else
         {
             Debug.Log(pages[page] + ":\nReceived: " + webRequest.downloadHandler.text);
         }
 
     }
     public void CallRegister()
     {
         StartCoroutine(Register());
     }
 
     private IEnumerator Register()
     {
         WWWForm form = new WWWForm();
         form.AddField("name", NameField.text);
         form.AddField("password", PasswordField.text);
 
         UnityWebRequest webRequest = UnityWebRequest.Post(RegisterURL, form);
         webRequest.chunkedTransfer = false;
         // Request and wait for the desired page.
         yield return webRequest.SendWebRequest();
             
         string[] pages = RegisterURL.Split('/');
         int page = pages.Length - 1;
 
         if (webRequest.isNetworkError)
         {
             Debug.Log(pages[page] + ":\nError: " + webRequest.error);
         }
         else
         {
             Debug.Log(pages[page] + ":\nReceived: " + webRequest.downloadHandler.text);
         }
     }
     public void GoToMain()
     {
         MainPanel.SetActive(true);
         this.gameObject.SetActive(false);
     }
     public void GoToScore()
     {
         ScorePanel.SetActive(true);
         this.gameObject.SetActive(false);
     }
     public void VerifyInputs()
     {
         SubmitButton.interactable = (NameField.text.Length >= 8 && PasswordField.text.Length >= 8 && PasswordField.text == PasswordConfirmField.text);
     }
 
 }

Any advice would be greatly appreciated.

Answer 1

Best Answer

Answer by MatchaJoeJoe · Jul 30, 2020 at 05:26 PM

I'm an idiot, I updated the default value in the script, but the old placeholder was still in the UI field in Unity. I updated the URL in Unity and it worked as expected.

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Answer 2

     public InputField inputField; //The URL I want to post to
     public InputField FormData; //What to post
 
     IEnumerator Upload()
     {
         WWWForm form = new WWWForm();
         form.AddField("", FormData.text);
 
         using (UnityWebRequest www = UnityWebRequest.Post(inputField.text, form))
         {
             yield return www.SendWebRequest();
 
             if (www.isNetworkError || www.isHttpError)
             {
                 Debug.Log(www.error);
             }
             else
             {
                 text.text = ByteArrayToString(form.data); //A text UI that displays the data
                 //Or you could do: Debug.Log(ByteArrayToString(form.data));
 
                 string ByteArrayToString(byte[] val) //Converts the data to ascii
                 {
                     string b = "";
                     int len = val.Length;
                     for (int i = 0; i < len; i++)
                     {
                         b += Convert.ToChar(val[i]);
                     }
                     return b;
                 }
             }
         }
     }

Heres how I posted using UnityWebRequest, with two inputfields for the data I want to post and the URL to post to

POST to HTTP not working

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