Question

我相信我可以与httpclient消息处理程序一起使用服务器端消息处理程序，因为它们实际上是相同的，但我只是想确定一下，因为我不确定100％。

当前，我正在使用Web API编写休息服务，任务之一是

我必须记录请求和每个请求的响应。



这些服务还在内部调用另一个服务，以获取一些我正在使用HTTP Client的数据。在这里我也需要登录   请求/响应。

我的消息处理程序看起来像这样

  public class ApiLoggingHandler : DelegatingHandler

  {

    private readonly CustomLogType customLogType;

    public ApiLoggingHandler(HttpMessageHandler innerHandler, CustomLogType customLogType)
      : base(innerHandler)
    {

    }
    public ApiLoggingHandler(CustomLogType customLogType)
    {
        this.customLogType = customLogType;
    }


   protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {


            var logger = CustomLogFactory.Create(customLogType);

            Tuple<string,string> controllerActionNames = GetControllerActionName(request);

            Dictionary<string, string> requestHeaders    = request.Headers?.ToDictionary(a => a.Key, a => string.Join(";", a.Value));

            await LogRequestAsync(request,request.RequestUri?.PathAndQuery, controllerActionNames.Item1, controllerActionNames.Item2, requestHeaders, logger);



            HttpResponseMessage response = await base.SendAsync(request, cancellationToken);




            Dictionary<string, string> responseHeaders = response.Headers?.ToDictionary(a => a.Key, a => string.Join(";", a.Value));

            await LogResponseAsync(response, request.RequestUri?.PathAndQuery, controllerActionNames.Item1, controllerActionNames.Item2, responseHeaders, logger);



            return response;



    }

这是我们在global.ascx上注册的消息处理程序

config.MessageHandlers.Add(new ApiLoggingHandler(CustomLogType.LOG4NET));

我的httpclient是静态的，并重复使用与

相同的消息处理程序

public class WebRequestHandler 
{


    private static HttpClient client;
    static WebRequestHandler()
    {
        client = new HttpClient(new ApiLoggingHandler(new HttpClientHandler(),CustomLogType.LOG4NET));



    }


   public async Task<TResult> GetAsync<TResult>(string requesturl, string authToken)
    {
        try
        {

            HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requesturl);

            request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            if (!string.IsNullOrEmpty(authToken)) request.Headers.Add("Authorization",  authToken);

            HttpResponseMessage response = await client.SendAsync(request);
            response.EnsureSuccessStatusCode();

            return await response.Content.ReadAsAync<TResult>();


        }

        catch (HttpRequestException e)
        {
            throw e;
        }
    }
}

请说明我在做什么，并且秤不会造成任何问题。

我可以重用服务器端的消息处理程序和客户端的HttpClient吗？

0 个答案: