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Library for inter-service event-based communication

Project description

Inter-service event communication

This library handles inter (micro)services communication in a decoupled way using the event/observer pattern.

The code raises an event when something happens and that event fires notifications to the registered listeners.

Implemented notifications are:

  1. Celery task
  2. HTTP request

YAML file configuration

Can be configured with a yaml file like this, passed as initialization argument or in environment variable EVENTISC_CONFIG

name_prefix: myapp.
- kind: http
  event_name: myapp.user_created
    auth: ["myuser", "password"]
  request_format: json
    user_id: "{event_data['user'].id}"
    email: "{event_data['user'].email}"
- kind: celery
  event_name_regex: myapp[.].*_created
  queue: foo_service
  task_name: foo_handle_created
    event_name: {event_name}
    event_data: {event_data}


import eventisc

eventisc.trigger("user_created", {"user": user})  # Should fire both listeners

eventisc.trigger("foo_created", {"foo": "bar"})  # Should fire only celery

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