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Owned by Julio Polo
Last updated: Mar 20, 2023
3 min read

You will need a RabbitMQ client to connect to the UH Message Broker.

  • Java
  • Perl
    • AnyEvent::RabbitMQ
      • We chose it mostly because it didn't require us to install additional software.
      • We have created a module named RabbitMessaging that uses AnyEvent::RabbitMQ.
        • It is much friendlier, but probably at the expense of AnyEvent functionality.
        • Read the warning about the consume() method in the RabbitMessaging.pm source code. You may want to use the get_message() method instead.
      • To use RabbitMessaging:
        • Download our RabbitMessaging.pm module
        • Install version 1.16 of AnyEvent::RabbitMQ or the latest version
          • Note that that AnyEvent::RabbitMQ version 1.16 or higher already includes the following patches which we previously had to manually apply to version 1.05 of AnyEvent::RabbitMQ
            • RabbitMQ-tls.patch to /usr/local/lib/site_perl/5../AnyEvent/RabbitMQ/RabbitMQ.pm (for TLS support)
          • The following patch was never necessary, though it is harmless if you already have it installed:
          • AnyEvent::RabbitMQ version 1.20_21 includes our patch to support the no_ack flag for the get method.
        • Patch Net::AMQP::Common.pm and add the "l => \&unpack_long_long_integer" line as shown below.  This is necessary with our upgrade to RabbitMQ 3.11 and/or because of quorum queues.
          • my %_unpack_field_types = (
    V => sub { undef },
    S => \&unpack_long_string,
    I => \&unpack_long_integer,
    l => \&unpack_long_long_integer,
    D => sub {
        my $input_ref = shift;
        my $exp = unpack_octet($input_ref);
        my $num = unpack_long_integer($input_ref);
        $num / 10.0 ** $exp;
    },
    F => \&unpack_field_table,
    A => \&unpack_field_array,
    T => \&unpack_timestamp,
    t => \&unpack_boolean,
);
        • Use sample-RabbitMessaging-code as a template for your app.
    • Net::STOMP::Client
      • Recommended by someone in the rabbitmq-discuss mailing list, its author is active in this list.
    • POE::Component::Client::AMQP
      • Also mentioned in rabbitmq-discuss mailing list.
  • Other clients from the RabbitMQ website:

You will need a RabbitMQ client to connect to the UH Message Broker.