Sender rabbitMQ

using System;
using RabbitMQ.Client;
using System.Text;

namespace Send {

    public static class IModelExtensions {
        public static void Publish(this IModel channel, string msg) {
            byte [] body = Encoding.UTF8.GetBytes(msg);
            channel.BasicPublish("", "hello", null, body);
        }
    }
    class Send {
        static ConnectionFactory CreateConnection() => new ConnectionFactory() {
            HostName = "192.168.15.40",
            UserName = "rfid",
            Password = "rfid"
        };

        static void Main(string[] args) {
            Console.WriteLine("Press any key to start: ");
            Console.ReadKey();

            var factory = CreateConnection();

            using(IConnection connection = factory.CreateConnection()) {
                using(IModel channel = connection.CreateModel()) {
                    channel.QueueDeclare(
                        queue: "hello",
                        durable: false,
                        exclusive: false,
                        autoDelete: false,
                        arguments: null
                    );

                    for(int i = 0; i < 100; i++) {
                        string msg = Guid.NewGuid().ToString();

                        channel.Publish(msg);
                        Console.WriteLine($"[-] Sent {i+1} {msg}");
                    }

                }
            }

            Console.WriteLine("Press [Enter] to exit.");
            Console.ReadLine();
        }
    }
}