[rabbitmq-discuss] What purpose do the default exchanges in a vhost serve?

[Alvaro Videla]

Hi,

The amq.* exchanges are dictated by the AMQP spec.

The unnamed exchange can be used in your app with various purposes. For
example: every queue gets bound to the "anon" exchange using the queue name
as routing key.  That means you can send a message directly to a queue by
doing:

channel.publish(msg, '', 'queue-name')

That's quite useful in RPC scenarios, or to send messages to anon queues
for example.

Regards,

Alvaro



On Tue, Dec 4, 2012 at 12:24 PM, Chris Duncan <chris.d at frugalit.co.uk>wrote:

> I've been playing around with the default exchanges that get automatically
> created in a vhost when it is created. Should I be able to delete
> amq.direct, amq.fanout etc.? I've found that I can delete them, although I
> can't delete the default 'nameless' exchange,  which makes sense. Do these
> amq.* exchanges serve any particular purpose?
>
> Cheers,
>
> Chris
>
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