This package can export key metrics of your app to Prometheus. It does this by providing an easy way to register metrics. Here's an example where we are going to export the user count to Prometheus.
These metrics will be exposed at the /prometheus endpoint. The package offers a way to add a security layer, so your key metrics don't become public.
You can configure your Prometheus instance to periodically crawl and import the metrics at the /prometheus endpoint of your app. Using Grafana, you can visualize the data points that are stored in Prometheus.