Transactions using OpenAPI C# is not showing up

Elastic Observability APM
7

Let me know if this work , obviously code will not compile, but should give you an idea as to what we are trying to do.

using Elastic.Apm;
using Elastic.Apm.Api;
using Newtonsoft.Json;
using System;
using System.Net.Http;
using System.Threading.Tasks;

namespace MWriter
{
public class Writer
{
//using data from App config file using Properties.Setting

public bool SendEventMsgToTopic(MsgEvent msgEvent)
{
//Elastic ITransaction
ITransaction tran = null;

        try
        {
            bool allGood = CheckEnvValues();

            if (allGood)
            {
                Environment.SetEnvironmentVariable("ELASTIC_APM_SERVER_URLS", Properties.Settings.Default.APMSERVERURL);
                Environment.SetEnvironmentVariable("ELASTIC_APM_SERVICE_NAME", Properties.Settings.Default.APMSERVICENAME);
                //APM agent
                tran = Agent.Tracer.StartTransaction("WriteMessage", ApiConstants.TypeExternal);

                connection = CreateConnection();

                if (connection != null)
                {
                    session = CreateWriter(connection);

                    if (session != null)
                    {
                        string message = JsonConvert.SerializeObject(msgEvent);
                   	....   
                }
                else
                {
                    errorMsg = "Null objet Error in session creation";
                    Console.WriteLine(errorMsg);
                    UpdateAPM(tran, errorMsg);
                    return success;
                }

            }
            else
            {
                errorMsg = "Invalid values in Application Config, check app config";
                Console.WriteLine(errorMsg);
                UpdateAPM(tran, errorMsg);
                return success;
            }

        }
     
        catch (Exception ex)
        {
            //errorMsg = ex.InnerException.ToString();
            errorMsg = "Error Occured";
            tran.CaptureException(ex);
            UpdateAPM(tran, errorMsg);

            throw;
        }
        finally
        {
          dispose off connection
        }


    }

    private static void UpdateAPM(ITransaction tran, string errMsg)
    {
        
        tran.Result = "Error";
        tran.End();
    }

    private static IConnection CreateConnection()
    {
        bool allValuesRead = CheckEnvValues();
        IConnection connection = null;


        ITransaction tran = Agent.Tracer.StartTransaction("CreateConnection", ApiConstants.TypeExternal);

        try
        {
            //set the domainName

            tran.Labels["Domain"] = Properties.Settings.Default.DomainName;
	.........


                     catch (Exception ex)
        {
            
            tran.CaptureException(ex);
            errorMessage = ex.InnerException.ToString();
            UpdateAPM(tran, errorMessage);
            throw;

        }

        return connection;
    }

   }