Capturing events

paolo · November 19, 2025, 2:02pm

I’m interested in gathering information about how many times my repo is being launched.

The documentation states the following:

These events may be sent to a sink via handlers from the python logging module.

But I couldn’t find an example on how this actually works. How do I do this?

rgaiacs · November 19, 2025, 2:48pm

are you talking about mybinder.org? If yes, you can visit https://archive.analytics.mybinder.org/ to find the recording of all the launches from mybinder.org. You will need a small script to process the JSON files.

paolo · November 19, 2025, 4:02pm

actually I was talking about my own binderhub deployment. I found this snippet which I think is what I need:

github.com/jupyterhub/mybinder.org-deploy

mybinder/values.yaml

ec138e870


      
          01-eventlog: |
            import os
          
            import google.cloud.logging
            import google.cloud.logging.handlers
            from traitlets.log import get_logger
          
            # importing google cloud configures a root log handler,
            # which prevents tornado's pretty-logging
            import logging
            logging.getLogger().handlers = []
          
            class JSONCloudLoggingHandler(google.cloud.logging.handlers.CloudLoggingHandler):
                def emit(self, record):
                    record.name = None
                    super().emit(record)
          
            def _make_eventsink_handler(el):
                client = google.cloud.logging.Client()
                # These events are not parsed as JSON in stackdriver, so give it a different name

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Capturing events

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