public async Task <IActionResult> Data()
        {
            var client = new HttpClient();

            using (var request = new HttpRequestMessage(HttpMethod.Get, _configuration.GetValue <System.String>("secondUrl")))
            {
                using (var activity = new ActivitySource("NETCONF2020.MyApplication").StartActivity("MyCustomActivity"))
                {
                    activity?.SetTag("customKey", "customValue");
                    activity?.SetTag("customInteger", 42);
                }

                var response = await client.SendAsync(request);

                return(Content(await response.Content.ReadAsStringAsync()));
            }
        }