Alerters allow you to send messages to chat services (like Slack, Discord, Mattermost, etc.) from within your pipelines. This is useful to immediately get notified when failures happen, for general monitoring/reporting, and also for building human-in-the-loop ML.

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Alerter Flavors

Currently, the SlackAlerter is the only available alerter integration. However, it is straightforward to extend ZenML and build an alerter for other chat services.
AlerterFlavorIntegrationNotes
SlackslackslackInteracts with a Slack channel
Custom ImplementationcustomExtend the alerter abstraction and provide your own implementation
If you would like to see the available flavors of alerters in your terminal, you can use the following command: 
zenml alerter flavor list

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How to use Alerters with ZenML

Each alerter integration comes with specific standard steps that you can use out-of-the-box. However, you first need to register an alerter component in your terminal: 
zenml alerter register  ...
Then you can add it to your stack using 
zenml stack register ... -al
Afterwards, you can import the alerter standard steps provided by the respective integration and directly use them in your pipelines.