3.8.0

New features

• Add safir.slack.webhook.SlackWebhookClient and accompanying models to post a structured message to Slack via an incoming webhook. Add a safir.slack.blockkit.SlackException base class that can be used to create exceptions with supplemental metadata that can be sent to Slack as a formatted alert.
• Add a FastAPI route class (safir.slack.webhook.SlackRouteErrorHandler) that reports all uncaught exceptions to Slack using an incoming webhook.
• Add safir.datetime.format_datetime_for_logging to convert a datetime object into an easily human-readable representation.
• Add safir.testing.slack.mock_slack_webhook and an associated mock class to mock a Slack webhook for testing.
• Add microseconds=True parameter to safir.datetime.current_datetime to get a datetime object with microseconds filled in. By default, current_datetime suppresses the microseconds since databases often cannot store them, but there are some timestamp uses, such as error reporting, that benefit from microseconds and are never stored in databases.

What's Changed

• DM-38272: Add a Slack webhook client and error reporting by @rra in #143

Full Changelog: 3.7.0...3.8.0