prefect-discord 0.0.4

A simple package to send Prefect flows and tasks notifications to a Discord channel

Prefect Discord

Prefect Discord is a lightweight package to send notifications from flows and tasks to a Discord channel. The alerting system is configurable and allows many options that suit different flows and tasks.

Usage Example

from prefect import task
from prefect_discord import discord_notifier
@task(state_handlers=[discord_notifier(ignore_states=[Running])])
def add(x, y):
    return x + y

Configuration

Environment Variables

prefect_discord expects a few secrets set on Prefect's config.toml:

• DISCORD_WEBHOOK_URL = "discord_channel_webhook_url"
• DISCORD_WEBHOOK_THUMBNAIL_URL = "url_for_the_main_image"
• DISCORD_WEBHOOK_FOOTER_MESSAGE = "footer_text_next_to_icon"
• DISCORD_WEBHOOK_FOOTER_ICON_URL = "url_for_the_footer_image"

State Handler Parameters

The state handler can also be configured with some options

• ignore_states ([State], optional): list of State classes to ignore, e.g., [Running, Scheduled]. If new_state is an instance of one of the passed states, no notification will occur.
• only_states ([State], optional): similar to ignore_states, but instead only notifies you if the Task / Flow is in a state from the provided list of State classes
• webhook_secret (str, optional): the name of the Prefect Secret that stores your Discord webhook URL; defaults to "DISCORD_WEBHOOK_URL"
• backend_info (bool, optional): Whether to supply the Discord notification with urls pointing to backend pages; defaults to True
• proxies (dict), optional): dict with "http" and/or "https" keys, passed to requests.post - for situations where a proxy is required to send requests to the Discrd webhook