Events

Events are a mechanism to allow other programs to react to the change happening into the API data.

Define a location for your event handlers

Create the events folder:

mkdir /opt/zou/event_handlers

Then set EVENT_HANDLERS_FOLDER environment variable with the folder that will contain the event handler module: /opt/zou/event_handlers.

Your event definition should be located at the root of your event handlers folder.

Your handler should only implement one function named handle_event. It takes data sent with the event as parameter.

from flask import current_app

def handle_event(data):
    current_app.logger.info("Event occured!")

To register an event you must fill the event_map dict located in the __init__.py file of your event handlers folder.

The key of the dict is the event name that will trigger an event handler, the value is the event handler itself.

Let's see an example:

from . import shotgun_wip, shotgun_pending_review

event_map = {
    "task:start": shotgun_wip,
    "task:to-review": shotgun_pending_review
}

This is how your folder should look like:

ls /opt/zou/event_handlers
__init__.py
shotgun_wip.py
shotgun_pending_review.py

You can list to events externally. For that, please read the events documentation of the Python client.