Unleash uses prometheus internally to collect metrics. These are available on the given url if the
serverMetrics option is enabled (default=true).
Unleash will automatically count all updates for all toggles under the metric name
feature_toggle_update_total, and the toggle name is will be set as a label value. This information can be used to create annotations in grafana for everytime a feature toggle is changed.
You can use this query in grafana to achieve this:
Another useful counter is the
feature_toggle_usage_total which will give you the numbers for how many times a feature toggle has been evaluated to
active or not.