TcpListener snippet for HTTP

TcpServer.cs

using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using UnityEngine;
using static System.Text.Encoding;

namespace DefaultNamespace
{
    public class TcpServer : MonoBehaviour
    {
        private TcpListener _listener;
        private Thread _listenerThread;

        private void Awake()
        {
            _listener = null;
            try
            {
                // Set the TcpListener on port 13000.
                
                var ipEndpoint = new IPEndPoint(IPAddress.Any, 8002);
               
                // TcpListener server = new TcpListener(port);
                _listener = new TcpListener(ipEndpoint);


                _listenerThread = new Thread(StartListener);
                _listenerThread.Start();
            }
            catch (SocketException e)
            {
                Console.WriteLine("SocketException: {0}", e);
            }
        }

        private void StartListener()
        {
            _listener.Start();
            while (true)
            {
                var client = _listener.AcceptTcpClient();
                var buffer = new byte[10240];
                var stream = client.GetStream();
                var length = stream.Read(buffer, 0, buffer.Length);
                var incomingMessage = UTF8.GetString(buffer, 0, length);
                var result = "<h1>Hello, world!</h1>";
                var response = "HTTP/1.0 200 OK" + Environment.NewLine +
                               "Content-Length: " + result.Length + Environment.NewLine
                               + "Content-Type: " + "text/html" + Environment.NewLine
                               + Environment.NewLine
                               + result
                               + Environment.NewLine + Environment.NewLine;
                stream.Write(
                    UTF8.GetBytes(response.ToCharArray()), 0, response.Length);
            }
        }
    }
}