Play prometheus filters example app

This is an example play application with three routes:

/hello
/hello/:name
/error

These routes are monitored using the play prometheus filters.

You start the application with:

sbt run

These routes can be used with the following curl commands

curl localhost:9000/hello
curl localhost:9000/hello/yourname
curl localhost:9000/error

The prometheus metrics can be viewed on the /metrics endpoint

curl localhost:9000/metrics

The following filters are enabled:

StatusCounterFilter
StatusAndRouteLatencyFilter