https://linear.app/unleash/issue/2-2501/adapt-origin-middleware-to-stop-logging-ui-requests-and-start
This adapts the new origin middleware to stop logging UI requests (too
noisy) and adds new Prometheus metrics.
<img width="745" alt="image"
src="https://github.com/user-attachments/assets/d0c7f51d-feb6-4ff5-b856-77661be3b5a9">
This should allow us to better analyze this data. If we see a lot of API
requests, we can dive into the logs for that instance and check the
logged data, like the user agent.
This PR adds some helper methods to make listening and emitting metric
events more strict in terms of types. I think it's a positive change
aligned with our scouting principle, but if you think it's complex and
does not belong here I'm happy with dropping it.
This PR adds prometheus metrics for when users attempt to exceed the
limits for a given resource.
The implementation sets up a second function exported from the
ExceedsLimitError file that records metrics and then throws the error.
This could also be a static method on the class, but I'm not sure that'd
be better.
## About the changes
the created_by_user_id data migration from resolving events.created_by
(for both events and features) now emits events on how many rows were
updated.
Adds listeners for these events that records these metrics with
prometheus
