IEnumerator Post(string url, string bodyJsonString)    {        var request = new UnityWebRequest(url, "POST");        byte[] bodyRaw = Encoding.UTF8.GetBytes(bodyJsonString);        request.uploadHandler = (UploadHandler) new UploadHandlerRaw(bodyRaw);        request.downloadHandler = (DownloadHandler) new DownloadHandlerBuffer();        request.SetRequestHeader("Content-Type", "application/json");         yield return request.Send();         Debug.Log("Status Code: " + request.responseCode);    }

 

Oddly Unity has two different ways? I found that this version they supply works?

Yes, there are two ways:

(url, form);

and

new UnityWebRequest(, "POST");