Cannot get data from HTTP Response using UnityWebRequest in Unity

Questions & Answers
1

Hey Unity PROs, I am beginner here! I am trying to use the Microsoft Bing Text to Speech API in Unity, this API requires an AccessToken that will be passed in the request header. to get this token, I have sent my Authentication Key in the “Ocp-Apim-Subscription-Key” header, and the the API will return back the access token that i can use next, this is a test of the API that retuns the Token in Postman.

113986-mifrl.jpg
113986-mifrl.jpg1043×520 63.8 KB

So this is the code to do this, but it doesn’t work.

using System.Collections;
using System.Collections.Generic;
using System.Xml.Linq;
using UnityEngine;
using UnityEngine.Networking;

public class Test : MonoBehaviour
{
    public static readonly string accessUri = "https://api.cognitive.microsoft.com/sts/v1.0/issueToken";
    public string accessToken;

    public void Start()
    {
        WWWForm wwwForm = new WWWForm();
        Dictionary<string, string> headers = wwwForm.headers;
        headers["Ocp-Apim-Subscription-Key"] = "a66ec1e2efed47639f22e2dc2e760d13x";

        UnityWebRequest www = UnityWebRequest.Post(accessUri, wwwForm);
        StartCoroutine(RequestToken(www));
    }

    public IEnumerator RequestToken(UnityWebRequest www)
    {
        yield return www;
        if (www.error == null)
        {
            Debug.Log("downloadedBytes : " + www.downloadedBytes);
            Debug.Log("certificateHandler : " + www.certificateHandler);
            Debug.Log("chunkedTransfer : " + www.chunkedTransfer);
            Debug.Log("downloadHandler : " + www.downloadHandler);
            Debug.Log("downloadProgress : " + www.downloadProgress);
            Debug.Log("isDone : " + www.isDone);
            Debug.Log("isNetworkError : " + www.isNetworkError);
            Debug.Log("method : " + www.method);
            Debug.Log("redirectLimit : " + www.redirectLimit);
            Debug.Log("responseCode : " + www.responseCode);
            Debug.Log("uploadedBytes : " + www.uploadedBytes);
            Debug.Log("useHttpContinue : " + www.useHttpContinue);
        }
        else
        {
            Debug.Log("Error" + www.error);
        }
        var p = www.downloadHandler.data;
        Debug.Log("Access token: " + p);
    }
}

The result of this code :

113988-azddddd.jpg
113988-azddddd.jpg997×484 60.3 KB

I have already tried the WWW class, but this didn’t work! and the System.Net.Http, but Unity wont accept this Library :confused:

Is there any way to do that, please?

2

You are not passing the headers anywhere.

Try doing something like this:

Dictionary<string, string> headers = new Dictionary<string, string>();
headers.Add("User-Agent", "Mozilla / 5.0(Windows NT 10.0; WOW64) AppleWebKit / 537.36(KHTML, like Gecko) Chrome / 55.0.2883.87 Safari / 537.36");

WWWForm formData = new WWWForm();
formData.AddField("UserName", "Programmer");
formData.AddField("Password", "ProgrammerPass");

WWW www = new WWW("http://www.thismachine.info/", formData.data, headers);
yield return www;
Debug.Log(www.text);