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Python library for sending and receiving Eiffel events

Project description

Eiffellib is a python library for subscribing to and publishing Eiffel events to a message-broker.


Eiffellib solves the problem of publishing Eiffel events and subscribing to events, removing the need of knowing how to connect to a message-broker or how to utilize the protocol it supplies.

With Eiffellib you can start subscribing to and publish valid Eiffel messages quickly and to get a feel for the event protocol.

It is designed to be fast and easy to start using while still being production quality.



  • Simple subscription and publishing of Eiffel events.
  • Event building assistance with event validation on receive and publish.
  • Following a context link.


Install the project by running:

pip install eiffellib[rabbitmq]
If you only want to use the Eiffel message definitions leave out the optional dependency:
pip install eiffellib


Start RabbitMQ

In order for these examples to work you need a RabbitMQ server:

# From
docker run -d --hostname my-rabbit --name some-rabbit -p 8080:15672 -p 5672:5672 rabbitmq:3-management

Subscribing to an event

import time
from eiffellib.subscribers import RabbitMQSubscriber

def callback(event, context):

SUBSCRIBER = RabbitMQSubscriber(host="", port=5672, ssl=False,
                                queue="eiffel", exchange="amq.fanout")
SUBSCRIBER.subscribe("EiffelActivityTriggeredEvent", callback)
while True:

Publishing an event

from eiffellib.publishers import RabbitMQPublisher
from import EiffelActivityTriggeredEvent

PUBLISHER = RabbitMQPublisher(host="", exchange="amq.fanout", ssl=False,
ACTIVITY_TRIGGERED = EiffelActivityTriggeredEvent()"name", "Test activity")


If you are having issues, please let us know. There is a mailing list at: or just write an Issue.

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