How to write HTTP post request in Unity by using UnityWebRequest?

Question

Mthod: Post Link: www.link.com Headers: 1: appKey="ABC" 2: Content-Type="text/csv" How to write the C# Script to send the data through post.?

I gone through link, I tried examples also. Their it is specified that the form.add method is used to upload the header but it wont work. And I need the post request by using UnityWebRequest. — EKNATH KULKARNI, Aug 21 '18 at 05:46

score 3 · Accepted Answer · edited May 22 '19 at 14:39

public void Request()
{
    try
    {
        string url = "www.link.com";

        var request = UnityWebRequest.Post(url, "");
        request.SetRequestHeader("Content-Type", "application/json");
        request.SetRequestHeader("Accept", "text/csv");
        request.SetRequestHeader("appKey", "ABC");
        StartCoroutine(onResponse(request));
    }
    catch (Exception e) { Debug.Log("ERROR : " + e.Message); }
}
private IEnumerator onResponse(UnityWebRequest req)
{

    yield return req.SendWebRequest();
    if (req.isError)
      Debug.Log("Network error has occured: " + req.GetResponseHeader(""));
    else
        Debug.Log("Success "+req.downloadHandler.text );
        byte[] results = req.downloadHandler.data;
    Debug.Log("Second Success");
    // Some code after success

}

This code is worked for me...

You can use promises with the UnityWebRequest to improve the quality of your code, check this OpenSource unity plugin => https://github.com/proyecto26/RestClient — jdnichollsc, Aug 31 '18 at 01:55

score 2 · Answer 2 · answered Aug 20 '18 at 08:30

2

You could do something like this :

void Start()
{
    StartCoroutine(PostCrt());
}

IEnumerator PostCrt()
{
    WWWForm form = new WWWForm();
    form.AddField("appKey", "ABC");
    form.AddField("Content-Type", "text/csv");

    using (UnityWebRequest www = UnityWebRequest.Post("www.link.com", form))
    {
        yield return www.SendWebRequest();

        if (www.isNetworkError || www.isHttpError)
        {
            Debug.Log(www.error);
        }
        else
        {
            Debug.Log("Post Request Complete!");
        }
    }
}

Don't forget to call "using UnityEngine.Networking;" to be able to use UnityWebRequest.

Happy coding!

answered Aug 20 '18 at 08:30

GhAyoub

525
4
11

I am getting error of cannot connect to destination host. The link is server api link. It works when I paste it on browser but hear it si giving me above error. – EKNATH KULKARNI Aug 20 '18 at 08:45
Are you allowed to show me the full URL that you put there? – GhAyoub Aug 20 '18 at 08:51
What this request exactly do? I think there is a problem of a missing Authorization header. – GhAyoub Aug 20 '18 at 08:58
I added the appKey,and content-type, accept headers . These headers are sufficient to get response. I tested it through postman. I am not getting what is missing. – EKNATH KULKARNI Aug 20 '18 at 09:01
Strange, I don't think that the problem is from the request but I do think that there is a problem with the url redirection. Sorry man I can't help you out. – GhAyoub Aug 20 '18 at 09:08
No problem...Thank you for your support – EKNATH KULKARNI Aug 20 '18 at 09:39
could you able to tell me how to read the response from above code – EKNATH KULKARNI Aug 20 '18 at 10:42
Add a Debug.Log(www.downloadHandler.text); when it is successful – GhAyoub Aug 20 '18 at 10:45

How to write HTTP post request in Unity by using UnityWebRequest?

2 Answers2