Source code for airflow.providers.slack.notifications.slack

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

from __future__ import annotations

import json
from functools import cached_property
from typing import TYPE_CHECKING, Sequence

from airflow.notifications.basenotifier import BaseNotifier
from airflow.providers.slack.hooks.slack import SlackHook

if TYPE_CHECKING:
    from slack_sdk.http_retry import RetryHandler

[docs]ICON_URL: str = "https://raw.githubusercontent.com/apache/airflow/2.5.0/airflow/www/static/pin_100.png"
[docs]class SlackNotifier(BaseNotifier): """ Slack BaseNotifier. :param slack_conn_id: Slack API token (https://api.slack.com/web). :param text: The content of the message :param channel: The channel to send the message to. Optional :param username: The username to send the message as. Optional :param icon_url: The icon to use for the message. Optional :param blocks: A list of blocks to send with the message. Optional :param timeout: The maximum number of seconds the client will wait to connect and receive a response from Slack. Optional :param base_url: A string representing the Slack API base URL. Optional :param proxy: Proxy to make the Slack API call. Optional :param retry_handlers: List of handlers to customize retry logic in ``slack_sdk.WebClient``. Optional :param attachments: (legacy) A list of attachments to send with the message. Optional :param unfurl_links: Option to indicate whether text url should unfurl. Optional :param unfurl_media: Option to indicate whether media url should unfurl. Optional """
[docs] template_fields = ("text", "channel", "username", "attachments", "blocks")
def __init__( self, *, slack_conn_id: str = SlackHook.default_conn_name, text: str = "This is a default message", channel: str = "#general", username: str = "Airflow", icon_url: str = ICON_URL, attachments: Sequence = (), blocks: Sequence = (), base_url: str | None = None, proxy: str | None = None, timeout: int | None = None, retry_handlers: list[RetryHandler] | None = None, unfurl_links: bool = True, unfurl_media: bool = True, ): super().__init__() self.slack_conn_id = slack_conn_id self.text = text self.channel = channel self.username = username self.icon_url = icon_url self.attachments = attachments self.blocks = blocks self.base_url = base_url self.timeout = timeout self.proxy = proxy self.retry_handlers = retry_handlers self.unfurl_links = unfurl_links self.unfurl_media = unfurl_media @cached_property
[docs] def hook(self) -> SlackHook: """Slack Hook.""" return SlackHook( slack_conn_id=self.slack_conn_id, base_url=self.base_url, timeout=self.timeout, proxy=self.proxy, retry_handlers=self.retry_handlers, )
[docs] def notify(self, context): """Send a message to a Slack Channel.""" api_call_params = { "channel": self.channel, "username": self.username, "text": self.text, "icon_url": self.icon_url, "attachments": json.dumps(self.attachments), "blocks": json.dumps(self.blocks), "unfurl_links": self.unfurl_links, "unfurl_media": self.unfurl_media, } self.hook.call("chat.postMessage", json=api_call_params)
[docs]send_slack_notification = SlackNotifier

Was this entry helpful?