C# 如何为Microsoft认知服务API编写二进制输入的POST方法

Microsoft认知服务API在帖子正文中支持两种输入方法：原始图像二进制或图像URL。通过使用此API的在线测试控制台，我知道HTTP请求应该是什么样子

`POST https://api.projectoxford.ai/vision/v1.0/analyze?visualFeatures=Faces HTTP/1.1
Content-Type: application/json
Host: api.projectoxford.ai
Content-Length: 125
Ocp-Apim-Subscription-Key: ••••••••••••••••••••••••••••••••

{"url":"someImageURL"}`

我正在向UnityWebRequest提出请求，目前为止我所拥有的是

string url = "https://api.projectoxford.ai/vision/v1.0/analyze?visualFeatures=Faces";
UnityWebRequest www = new UnityWebRequest(url, "POST");
www.SetRequestHeader("Content-Type", "application/json");
www.SetRequestHeader("Ocp-Apim-Subscription-Key", APIKEY);

---

如何将我的byte[]图像包含在此请求中？

我只是通过Unity的WWW，而不是UnityWebRequest找到了它

我成功地使用了以下代码：

    // Add WWW Headers needed
    WWWForm form = new WWWForm();
    var headers = form.headers;
    headers["Content-Type"] = "application/octet-stream";
    headers["Ocp-Apim-Subscription-Key"] = Key;

    //Start WWW Request
    WWW www = new WWW(url, image, headers);

    StartCoroutine(WaitForRequest(www));

---

我只是通过Unity的WWW，而不是UnityWebRequest找到了答案

我成功地使用了以下代码：

    // Add WWW Headers needed
    WWWForm form = new WWWForm();
    var headers = form.headers;
    headers["Content-Type"] = "application/octet-stream";
    headers["Ocp-Apim-Subscription-Key"] = Key;

    //Start WWW Request
    WWW www = new WWW(url, image, headers);

    StartCoroutine(WaitForRequest(www));