从Windows服务调用WebApi

Question

我试图从Windows服务的OnStart（）方法调用以下方法，但是Windows服务启动和停止并抛出错误。

 static async Task RunAsync()
    {
            LightSpeedContext<RightHireUnitOfWork> _context;
            var client = new HttpClient();

            _context = new LightSpeedContext<RightHireUnitOfWork>("default");

            client.BaseAddress = new Uri("https://api.xyz.com/");
            client.DefaultRequestHeaders.Accept.Clear();
            client.DefaultRequestHeaders.TryAddWithoutValidation(
                "X-SmartToken",
                "1dfaaad541c45031c8b92bfab3ssssssssssb5644c368f3");

            var content = new StringContent("", Encoding.UTF8,
                                "application/json");
            string config = "v1/assessments?status=NEW";
            HttpResponseMessage response = null;

            try
            {
                response = await client.GetAsync(config);
            }
            catch (HttpRequestException httpEx)
            {
                // determine error here by inspecting httpEx.Message         
            }

            if (response.IsSuccessStatusCode)
            {
                ListResult lr = await response.Content.ReadAsAsync<ListResult>();

                List<SmartRecruiters.AssessmentOrder> lAsmtOrders = lr.content;

//在此进行其他处理

            }

    }

OnStart方法如下：

    protected override void OnStart(string[] args)
    {
        this.WriteToFile("Simple Service started {0}");

        // Need to call the RunAsync method here...

    }

我尝试使OnStart异步，但它没有帮助。有关如何成功拨打电话的任何想法？