如何调用不会等待响应的 Web API 端点

Question

我们正在从组件调用 Web API 端点 (EP)，并且我们不希望组件等到它从端点获得响应。 我们正在使用下面的代码调用端点，下面的代码正在等待端点的响应。

有人可以提供一些见解来实现这一点。 提前致谢。

var webAddr = "EndPointURL";

var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr);

httpWebRequest.Method = "POST";
httpWebRequest.ContentLength = 0;
httpWebRequest.KeepAlive = false;
httpWebRequest.Timeout = System.Threading.Timeout.Infinite;
httpWebRequest.Headers.Add("Authorization", Token);
httpWebRequest.Headers.Add("BatchId", 25);
httpWebRequest.Headers.Add("UserName", "ABC");

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();   

using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
    var result = streamReader.ReadToEnd();
}

Answer 1

Task.Run(() =>
{
    var request = new HttpRequestMessage(HttpMethod.Post, "EndPointURL");
    request.Headers.Authorization = new AuthenticationHeaderValue("???", "???");
    request.Headers.Add("BatchId", "25");
    request.Headers.Add("UserName", "ABC");
    var client = new HttpClient();
    client.SendAsync(request);
});

// do stuff