[rabbitmq-discuss] RabbitMQ Erlang Client

[Ryan Kaulakis]

Matthias,
I appreciate the quick response. Thanks for answering my questions,
that should be enough for me to work with.

Thanks,
Ryan



On Thu, Apr 23, 2009 at 6:00 PM, Matthias Radestock <matthias at lshift.net> wrote:
> Ryan,
>
> Ryan Kaulakis wrote:
>>
>> 1) What is the preferred way of using the erlang client for RabbitMQ?
>> I've seen examples that deal directly with the amqp_channel and
>> amqp_connection modules directly (with records like
>> #'queue.declare_ok'{} and such), but there also seems to be a lib_amqp
>> module as well. Is one more stable that the other?
>
> lib_amqp contains convenience wrappers for the amqp_{connection,channel}
> functions. In some cases they can save quite a bit of typing for common uses
> of AMQP. However, the wrappers are rather ad-hoc and do not provide anywhere
> near complete coverage of the AMQP functionality. Personally I prefer to
> just use the core functions. YMMV.
>
> In theory the wrappers could insulate you somewhat from changes at the
> protocol level, but because of their ad-hoc nature they are actually more
> likely to change than the protocol. Also, the use of default values in the
> record definitions provide some a degree of stability in the presence of
> protocol changes.
>
>> 2) What header file are all of those AMQP specific records defined
>> (like #'queue.declare')? I'm guessing that they're auto-generated
>> somewhere but I'd like to take a look at what is actually out there.
>
> rabbit_framing.hrl, which is indeed auto-generated and can be found in the
> server "binary" packages.
>
>> 3) What plans are there for supporting AMQP 1-0 when the standard is
>> approved?
>
> Please ask that question again nearer the time :)
>
>
> Regards,
>
> Matthias.
>