.Net Core 2.1及更高版本中的Simple.OData.Client拦截未经授权的请求

Question

我在从.net核心发出Odata请求时添加了令牌，如下所示：

var settings = new ODataClientSettings(new Uri(AppConstants.BaseLink));
        settings.BeforeRequestAsync += async (HttpRequestMessage message) =>
        {
            var token = await _tokenService.GetCRMTokenAsync();
            message.Headers.Authorization = new AuthenticationHeaderValue(token.TokenType, token.AccessToken);
        };

现在，我想添加一个拦截器，即当有未经授权的响应时，我想拦截该响应，获取新令牌并再次发送请求。

我写了这样的东西：

settings.AfterResponseAsync += async (HttpResponseMessage response) =>
        {
            if (response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
            {
                var token = await _tokenService.GetCRMTokenAsync();
                await _tokenService.RefreshCRMTokenAsync(token.RefreshToken);
                HttpRequestMessage msg = new HttpRequestMessage();
                msg = response.RequestMessage;
                response = null;
                msg.Headers.Authorization = new AuthenticationHeaderValue(token.TokenType, "");
                var client = _httpClientFactory.CreateClient();
                await client.SendAsync(msg);
            }
        };

但是以上方法不起作用。有谁知道如何使这项工作，或以其他方式实现这一目标。预先感谢。