need help adding new metrics

[geib]

I have prometheus.erl and prometheus_httpd included in my rebar3 project, and I see the metrics for the erlang VM, etc. Now I am trying to added a couple new metrics of my own, like response time to a http POST, etc. But I can not seem to get this working.

Is there a simple step-by-step example to add a new metric to a existing erlang application.??

Thanks,
Mark.

[deadtrickster]

I'm not sure there is step-by-step example, probably in the linked blog posts. but hey, you can learn from prometheus_httpd.

• you declare metrics: https://github.com/deadtrickster/prometheus-httpd/blob/master/src/prometheus_http_impl.erl#L38
• you use them: https://github.com/deadtrickster/prometheus-httpd/blob/master/src/prometheus_http_impl.erl#L149
  that's about it.