March Hare, a JRuby RabbitMQ Client

March Hare is an idiomatic, fast and well-maintained (J)Ruby DSL on top of the RabbitMQ Java client. It strives to combine strong parts of the Java client with over 4 years of experience using and developing Ruby amqp gem and Bunny.

Why March Hare

What March Hare is not

March Hare is not

Project Maturity

March Hare is not a young project. Extracted from a platform that transports more than a terabyte of data over RabbitMQ every day, it has been around as an open source project since mid-2011 and will reach 2.0 in 2013.

It is also based on the RabbitMQ Java client, which is an officially supported client and is considered to be a reference implementation.

Installation, Dependency

With Rubygems

gem install march_hare --pre

With Bundler

gem "march_hare", "~> 2.0.0.rc5"



MarchHare documentation guides are mostly complete.


Several code examples are available. Our test suite also has many code examples that demonstrate various parts of the API.


API reference is available.

Supported Ruby Versions

March Hare supports JRuby 1.7+ in 1.9 and 1.8 modes.

Supported JDK Versions

The project is tested against OpenJDK 7, Oracle JDK 7 and is known to work well on OpenJDK 6 and Sun JDK 6.

Change Log


Continuous Integration

Continuous Integration status

CI is hosted by


MIT, see LICENSE in the repository root


Theo Hultberg, Michael Klishin, 2011-2013.