Split rabbit mq topic event sender into seperate registration method

src/HotChocolate/Core/src/Subscriptions.RabbitMQ/DependencyInjection/RabbitMQPubSubExtensions.cs

@@ -44,25 +44,49 @@ public static IRequestExecutorBuilder AddRabbitMQSubscriptions(
             throw new ArgumentNullException(nameof(builder));
         }
 
-        builder
-            .AddSubscriptionDiagnostics()
-            .Services
-            .AddRabbitMQSubscriptions(connectionFactory, options);
+        builder.Services
+            .AddRabbitMQSubscriptionPublisher(connectionFactory, options)
+            .TryAddSingleton<ITopicEventReceiver>(sp => sp.GetRequiredService<RabbitMQPubSub>());
 
         return builder;
     }
 
-    private static void AddRabbitMQSubscriptions(
+    /// <summary>
+    /// Registers the RabbitMQ subscription provider for use in publisher scenarios where the graphql server is
+    /// not running, but you still want to publish events via RabbitMQ for another process to receive.
+    /// </summary>
+    /// <param name="services">
+    /// The service collecion builder.
+    /// </param>
+    /// <param name="connectionFactory">
+    /// The RabbitMQ connection factory. This parameter is optional; the default value is <c>null</c>.
+    /// The following properties will be overriden with <c>true</c> to make the connection recoverable.
+    /// - <c>AutomaticRecoveryEnabled</c>
+    /// - <c>DispatchConsumersAsync</c>
+    /// </param>
+    /// <param name="options">
+    /// The subscription provider options. This parameter is optional; the default value is <c>null</c>.
+    /// </param>
+    /// <returns>
+    /// Returns the GraphQL configuration builder for configuration chaining.
+    /// </returns>
+    /// <exception cref="ArgumentNullException">
+    /// <paramref name="services"/> is <c>null</c>.
+    /// </exception>
+    public static IServiceCollection AddRabbitMQSubscriptionPublisher(
         this IServiceCollection services,
         ConnectionFactory? connectionFactory = null,
         SubscriptionOptions? options = null)
     {
+        services.AddSubscriptionDiagnostics();
+
         services.TryAddSingleton(connectionFactory ?? new ConnectionFactory());
         services.TryAddSingleton<IRabbitMQConnection, RabbitMQConnection>();
         services.TryAddSingleton(options ?? new SubscriptionOptions());
         services.TryAddSingleton<IMessageSerializer, DefaultJsonMessageSerializer>();
         services.TryAddSingleton<RabbitMQPubSub>();
         services.TryAddSingleton<ITopicEventSender>(sp => sp.GetRequiredService<RabbitMQPubSub>());
-        services.TryAddSingleton<ITopicEventReceiver>(sp => sp.GetRequiredService<RabbitMQPubSub>());
+
+        return services;
     }
 }