Fingerprints are not working with logging

With raven it was possible to group events using the fingerprint extra parameter:

logger.warning(
    'connection failed',
    exc_info=error,
    extra={'fingerprint': ['my-connection-error']},
)

After migration from raven-python to sentry-sdk such events are no longer grouped by sentry.

[ascrookes]

@untitaker Thank you for sharing this approach. We are using this and appreciate the insight.

We ran into a small issue with it that we wanted to highlight for others who might end up here. Not all hints have the key log_record. In the cases where an unhandled exception was raised trying to access the log record caused the before send to raise an exception. That resulted in Sentry not sending the event and failing silently. Checking that the hint has log_record before trying access it fixed that issue for us.

We are currently running sentry-sdk==1.9.0

[untitaker]

No, sorry I don’t want to discover random attributes from there anymore (all should just go into extra).

I added a small fix into master that will allow you to do this:

def before_send(event, hint):
    if hint and hasattr(hint['log_record'], "fingerprint"):
        event['fingerprint'] = hint['log_record'].fingerprint
    return event

init(before_send=before_send)