Added support for otel

SampleApi/Controllers/DemoController.cs

@@ -1,4 +1,5 @@
 using Microsoft.AspNetCore.Mvc;
+using System.Diagnostics;
 
 // For more information on enabling Web API for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
 
@@ -8,10 +9,17 @@ namespace SampleApi.Controllers
     [ApiController]
     public class DemoController : ControllerBase
     {
+        private static readonly ActivitySource MyActivitySource = new("SampleApi");
+
         // GET: api/<DemoController>
         [HttpGet]
-        public IEnumerable<string> Get()
+        public IEnumerable<string> Get(ILogger<DemoController> logger)
         {
+            using var activity = MyActivitySource.StartActivity("ManualTraceTest");
+            activity?.SetTag("test.status", "success");
+
+            logger.LogInformation("sample api log");
+
             return new string[] { "value1", "value2" };
         }