Change message priority with MassTransit/RabbitMQ - rabbitmq

Question

I have a queue with 100 messages in. At some point, I'd like send a message but this message has a higher priority and should be treated first, before the 100 existing.
Is there a way to do this ?
Thanks,
Tried to set the but no more message arrive :
On the sender (Web API)
var bus = Bus.Factory.CreateUsingRabbitMq(sbc =>
sbc.Host("hostName", "host", h =>
{
h.Username("username");
h.Password("password);
})
);
Send the message
Uri uri = new Uri("queue:myQueue");
var endpoint = await bus.GetSendEndpoint(uri);
await endpoint.Send(request);
On the consumer (consoler app) :
static void Main(string[] args)
{
var busControl = Bus.Factory.CreateUsingRabbitMq(cfg =>
{
cfg.Host("localhost", "/", h =>
{
h.Username("guest");
h.Password("guest");
});
cfg.ReceiveEndpoint("myQueue", e =>
{
e.Handler<myType>(context =>
{
return Console.Out.WriteLineAsync($"{context.Message.Id}");
});
});
});
busControl.Start();
Console.WriteLine("Receive listening for messages");
Console.ReadLine();
busControl.Stop();
}

Answer 1

When configuring a receive endpoint, you can enable priority for that endpoint (queue):
configurator.ReceiveEndpoint("priority_input_queue", x =>
{
x.EnablePriority(4);
x.ConfigureConsumer(...);
});
This would configure the endpoint with maximum allowed priority of four (4).
Then, when sending/publishing a message, the priority can be specified:
await Bus.Publish(new Message(...), context =>
{
context.SetPriority(2);
});
If no value is specified, the default priority is used.