Dynamic routing keys when using RabbitMQ

[redwoodsquirrel]

Hi all!

I am using RabbitMQ with routing keys like so.

using var host = await Host.CreateDefaultBuilder()
    .UseWolverine(opts =>
    {
		options.UseRabbitMq()
			.AutoProvision();

		options.PublishMessage<MyMessage>()
			.ToRabbitRoutingKey( nameof( MyMessage), "some-static-key" )
			.TelemetryEnabled( true )
			.UseDurableOutbox();
    }).StartAsync();

I understand, that all messages of type MyMessage are now sent using the routing key some-static-key. I don't want that. I need to set a dynamic key. I imagine something like this:

Task SendMessageAsync( MyMessage message )
{
        var receiverId = GetSuitableReceiverId();
	await _messageBus.PublishAsnyc( message, receiverId );
}

The type of message I send is always the same, while I only want a certain subscriber to get the messages.
I feel this is possible and I am perhaps missing the right spot in the documentation.

Any help is appreciated a lot.

Thanks.