Logging Flask Exceptions to Slack

readme.md

1. First off install the python package slacker-log-handler and add it to your requirements file.

   flask
   ...
   slacker-log-handler

2. Generate a slack token.

3. Add a SlackLogHandler instance to your app logger, I use the layout mentioned in the flask docs.

   if not app.debug:
       from slacker_log_handler import SlackerLogHandler
       slack_handler = SlackerLogHandler('YOUR-SLACK-TOKEN',
                                         'YOUR-SLACK-CHANNEL',
                                         stack_trace=True,
                                         username='USERNAME (like: site-bot)')
       slack_handler.setFormatter(Formatter(app.config['LOGGING_FORMAT']))
       file_handler.setLevel(logging.ERROR)
       app.logger.addHandler(slack_handler)

4. To test your integration, open a flask shell and type something like this:

   from app import app
   app.logging.error("ERROR")

   ... A message should pop up in your the slack channel you specified.

5. Done!