# @title Ruby AMQP gem: Using vendor-specific AMQP extensions

h1. Vendor-specific AMQP extensions support in amqp gem

h2. RabbitMQ extensions

h3. Supported extensions

AMQP gem supports two "RabbitMQ extensions to AMQP 0.9.1":

* "Publisher confirmations":http://www.rabbitmq.com/extensions.html#confirms (confirm.* class)
* "Negative acknowledgements":http://www.rabbitmq.com/extensions.html#negative-acknowledgements (basic.nack)

h3. Enabling RabbitMQ extensions

If you are using RabbitMQ as AMQP broker and want to use these extensions, simply replace

<pre>require "amqp"</pre>

with

<pre>
require "amqp"
require "amqp/extensions/rabbitmq"
</pre>

h3. Example of using publisher confirmations

<script src="https://gist.github.com/923599.js?file=rabbitmq_publisher_confirmations_with_amqp_gem_0.8.0.rb"></script>


h3. Documentation

RabbitMQ extensions documentation is part of "amq-client gem documentation":http://rubydoc.info/github/ruby-amqp/amq-client/master/frames



h2. Tell us what you think!

Please take a moment and tell us what you think about this guide "on Twitter":http://twitter.com/rubyamqp or "Ruby AMQP mailing list":http://groups.google.com/group/ruby-amqp:
what was unclear? what wasn't covered? maybe you don't like guide style or grammar and spelling are incorrect? Readers feedback is
key to making documentation better.

If mailing list communication is not an option for you for some reason, you can "contact guides author directly":mailto:michael@novemberain.com?subject=amqp%20gem%20documentation


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