[rabbitmq-discuss] txAMQP and RPC

Wed Oct 27 03:17:09 BST 2010

Hi,

First I don't know much about txAMQP, so I don't know where you will have to check, but reply_to is a property of the message, is not part of the basic_publish method.

Regards,

Alvaro

On Oct 27, 2010, at 10:11 AM, Brennan Sellner wrote:

> Hi folks,
> 
> Does anyone have example code floating around for implementing RPC using
> txAMQP and Rabbit?  I'm familiar with the concepts, and am able to
> declare, bind, and consume the private queue.  However, I've been
> unsuccessful in my attempts to set the reply-to field when publishing:
> basic_publish complains about an unexpected keyword argument when
> provided with 'replyTo', 'reply to', 'reply-to', or 'reply_to' keywords
> (with a value of a simple string).
> 
> We're using Rabbit 1.8.1, txAMQP 0.3.1, and the
> amqp0-8.stripped.rabbitmq.xml spec file that comes with txAMQP.  I'm
> guessing the issue is that the 'publish' method of the 'basic' class in
> the spec doesn't have a reply-to field declared (although neither the
> 0.9 nor the 0.9.1 specs have such a field).  I tried adding one for
> kicks, but then Rabbit complains that it can't decode basic.publish and
> nukes the client connection.  I see Java implementations of RPC that
> allude to a reply-to field, so I'm betting the issue isn't a lack of
> support on Rabbit's end.
> 
> While we could add a reply-to field to all of our messages, that's
> rather inelegant.  I'm pretty sure I'm missing something here: anyone
> know what? :-)
> 
> Thanks,
> 
> -Brennan
> 
> 
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