RabbitMQ Module
     __________________________________________________________

   Table of Contents

   1. Admin Guide

        1.1. Overview
        1.2. Dependencies

              1.2.1. OpenSIPS Modules
              1.2.2. External Libraries or Applications

        1.3. Exported Parameters

              1.3.1. server_id (string)

        1.4. Exported Functions

              1.4.1. rabbitmq_publish(server_id, routing_key,
                      message [, [content_type [, headers,
                      headers_vals]]])

   2. Contributors

        2.1. By Commit Statistics
        2.2. By Commit Activity

   3. Documentation

        3.1. Contributors

   List of Tables

   2.1. Top contributors by DevScore^(1), authored commits^(2) and
          lines added/removed^(3)

   2.2. Most recently active contributors^(1) to this module

   List of Examples

   1.1. Set server_id parameter
   1.2. rabbitmq_publish() function usage

Chapter 1. Admin Guide

1.1. Overview

   RabbitMQ (http://www.rabbitmq.com/) is an open source messaging
   server. It's purpose is to manage received messages in queues,
   taking advantage of the flexible AMQP protocol.

   Using this module you can send AMQP messages to a RabbitMQ
   server. Messages can be easily customized according to the AMQP
   specifications, as well the RabbitMQ extensions.

1.2. Dependencies

1.2.1. OpenSIPS Modules

   None.

1.2.2. External Libraries or Applications

   The following libraries or applications must be installed
   before running OpenSIPS with this module loaded:
     * librabbitmq-dev

1.3. Exported Parameters

1.3.1. server_id (string)

   Specify configuration for a RabbitMQ server. It contains a set
   of parameters used to customize the connection to the server,
   as well as to the messages sent. The format of the parameter is
   [id_name] param1=value1; param2=value2;. The uri parameter is
   mandatory.

   This parameter can be set multiple times, for each RabbitMQ
   server.

   The following parameters can be used:
     * uri - Mandatory parameter - a full amqp URI as described
       here. Missing fields in the URI will receive default
       values, such as: user: guest, password: guest, host:
       localhost, vhost: /, port: 5672. SSL connections are
       currently not available: amqps URIs will be declined.
     * frames - the maximum size of an AMQP frame. Optional
       parameter, default size is 131072.
     * retries - the number of retries in case a connection is
       down. Optional parameter, default is disabled (do not
       retry).
     * exchange - exchange used to send AMQP messages to. Optional
       parameter, default is "".
     * heartbeat - interval in seconds used to send heartbeat
       messages. Optional parameter, default is disabled.
     * immediate - indicate to the broker that the message MUST be
       delivered to a consumer immediately. Optional parameter,
       default is not immediate.
     * mandatory - indicate to the broker that the message MUST be
       routed to a queue. Optional parameter, default is not
       mandatory.
     * non-persistent - indicates that the message should not be
       persistent in case the RabbitMQ server restarts. Optional
       parameter, default is persistent.

   Example 1.1. Set server_id parameter
...
# connection to a RabbitMQ server on localhost, default port
modparam("rabbitmq", "server_id","[ID1] uri = amqp://127.0.0.1")
...
# connection with a 5 seconds interval for heartbeat messages
modparam("rabbitmq", "server_id","[ID2] uri = amqp://127.0.0.1;
heartbeat = 5")
...

1.4. Exported Functions

1.4.1.  rabbitmq_publish(server_id, routing_key, message [,
[content_type [, headers, headers_vals]]])

   Sends a publish message to a RabbitMQ server.

   This function also allows you to attach AMQP headers and values
   in the AMQP message. This is done by specifying a set of
   headers names (in the headers parameter) and the corresponding
   values (in the headers_vals parameter). The number of AVP
   values in the headers must be the same as the one in the
   headers_vals.

   This function can be used from any route.

   The function has the following parameters:
     * server_id (string) - the id of the RabbitMQ server. Must be
       one of the parameters defined in the server_id modparam.
     * routing_key (string) - routing key used to deliver the AMQP
       message.
     * message (string) - the body of the message.
     * content_type (string, optional) - content type of the
       message sent. By default it is none.
     * headers (string, optional) - an AVP containing the names of
       the headers within the AMQP message. If set, headers_vals
       parameter must also be specified.
     * headers_vals (string, optional) - an AVP containing the
       corresponding values of the AMQP headers. If set, headers
       parameter must also be specified.

   Example 1.2. rabbitmq_publish() function usage
        ...
        rabbitmq_publish("ID1", "call", "$fU called $rU");
        ...
        rabbitmq_publish("ID1", "call", "{ \'caller\': \'$fU\',
                                        \'callee\; \'$rU\'", "applicatio
n/json");
        ...
        $avp(hdr_name) = "caller";
        $avp(hdr_value) = $fU;
        $avp(hdr_name) = "callee";
        $avp(hdr_value) = $rU;
        rabbitmq_publish("ID2", "call", $rb, , $avp(hdr_name), $avp(hdr_
value));
        ...

Chapter 2. Contributors

2.1. By Commit Statistics

   Table 2.1. Top contributors by DevScore^(1), authored
   commits^(2) and lines added/removed^(3)
     Name DevScore Commits Lines ++ Lines --
   1. Razvan Crainea (@razvancrainea) 45 30 1489 112
   2. Vlad Patrascu (@rvlad-patrascu) 8 4 38 123
   3. Liviu Chircu (@liviuchircu) 7 5 17 35
   4. Bogdan-Andrei Iancu (@bogdan-iancu) 3 1 2 1
   5. Maksym Sobolyev (@sobomax) 3 1 1 1
   6. Walter Doekes (@wdoekes) 3 1 1 1

   (1) DevScore = author_commits + author_lines_added /
   (project_lines_added / project_commits) + author_lines_deleted
   / (project_lines_deleted / project_commits)

   (2) including any documentation-related commits, excluding
   merge commits. Regarding imported patches/code, we do our best
   to count the work on behalf of the proper owner, as per the
   "fix_authors" and "mod_renames" arrays in
   opensips/doc/build-contrib.sh. If you identify any
   patches/commits which do not get properly attributed to you,
   please submit a pull request which extends "fix_authors" and/or
   "mod_renames".

   (3) ignoring whitespace edits, renamed files and auto-generated
   files

2.2. By Commit Activity

   Table 2.2. Most recently active contributors^(1) to this module
                     Name                   Commit Activity
   1. Vlad Patrascu (@rvlad-patrascu)     May 2017 - Jul 2020
   2. Razvan Crainea (@razvancrainea)     Jan 2017 - Jul 2020
   3. Walter Doekes (@wdoekes)            Apr 2019 - Apr 2019
   4. Bogdan-Andrei Iancu (@bogdan-iancu) Apr 2019 - Apr 2019
   5. Liviu Chircu (@liviuchircu)         Apr 2018 - Aug 2018
   6. Maksym Sobolyev (@sobomax)          Jul 2017 - Jul 2017

   (1) including any documentation-related commits, excluding
   merge commits

Chapter 3. Documentation

3.1. Contributors

   Last edited by: Vlad Patrascu (@rvlad-patrascu), Liviu Chircu
   (@liviuchircu), Razvan Crainea (@razvancrainea).

   Documentation Copyrights:

   Copyright © 2017 www.opensips-solutions.com
