为什么不等到httpclient postasync完成？

Question

我正在创建http客户端以使用一些api。

这是我的客户端方法调用api端点。

public async Task<HttpResponseMessage> SendRequestAsync()
        {

            string adaptiveUri = "https://some-api/api/Authentication/AuthenticateThirdPartyUserAsync";

            using (HttpClient httpClient = new HttpClient())
            {
                var json = JsonConvert.SerializeObject(new { userName = "uname", password = "123", applicantCode = "hello" });
                var payload = new StringContent(json, Encoding.UTF8, "application/json");

                HttpResponseMessage responseMessage = null;
                try
                {
                    responseMessage = await httpClient.PostAsync(adaptiveUri, payload);
                }
                catch (Exception ex)
                {
                    if (responseMessage == null)
                    {
                        responseMessage = new HttpResponseMessage();
                    }
                    responseMessage.StatusCode = HttpStatusCode.InternalServerError;
                    responseMessage.ReasonPhrase = string.Format("RestHttpClient.SendRequest failed: {0}", ex);
                }
                return responseMessage;
            }
        }

调用方法如下

public async Task<IBaseStatus> Handle(InspectionAddedEvent domainEvent)
{
   var tk = await _iAClient.SendRequestAsync();
   return something;
}

但是await不会等到后同步完成。

但是当我使用时

httpClient.PostAsync(adaptiveUri, payload).GetAwaiter().GetResult()

等待发布完成。

任何人对此都有想法吗？

谢谢。

Answer 1

[await _iAClient.SendRequestAsync();绝对等待PostAsync。