implemented rabbitmq message broker support (publisher)

dotnet/AipsCore/Infrastructure/MessageBroking/RabbitMQ/RabbitMqPublisher.cs

@@ -0,0 +1,33 @@
+using System.Text;
+using System.Text.Json;
+using AipsCore.Application.Abstract;
+using RabbitMQ.Client;
+
+namespace AipsCore.Infrastructure.MessageBroking.RabbitMQ;
+
+public class RabbitMqPublisher : IMessagePublisher
+{
+    private readonly IRabbitMqConnection _connection;
+
+    public RabbitMqPublisher(IRabbitMqConnection connection)
+    {
+        _connection = connection;
+    }
+    
+    public async Task PublishAsync<T>(string exchange, string routeKey, T message, CancellationToken cancellationToken = default)
+    {
+        var channel = await _connection.CreateChannelAsync(cancellationToken);
+        
+        await channel.ExchangeDeclareAsync(exchange, ExchangeType.Topic, durable: true, cancellationToken: cancellationToken);
+        
+        var bytes = Serialize(message);
+        await channel.BasicPublishAsync(exchange, routeKey, bytes, cancellationToken);
+
+        await channel.CloseAsync(cancellationToken);
+    }
+
+    private byte[] Serialize<T>(T message)
+    {
+        return JsonSerializer.SerializeToUtf8Bytes(message);
+    }
+}