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Copyright (c) 2017-2018 Benoît Chesneau.

Version: 2.5.0

A generic interface to folsom, exometer, grapherl or any compliant interface. Thisapplication has been extracted fromhackney.

Currently supported backend are:

• Folsom:metrics_folsom
• Exometer:metrics_exometer

If you need the support for another backend, pleaseopen a ticket.

The backend can be set in the application environment using themetrics_mod setting or usingmetrics:backend/1.

metrics:new(counter, "c").

Depending on the backend the following metrics types can be passed: counter | histogram | gauge | meter | spiral

A counter can simply be incremented by 1 usingmetrics:update/1. or by passing a positive or negative integer like this:

metrics:update("c", {c, 1}).

Other metrics are updated viametrics:update/2.

1>application:ensure_all_started(metrics).{ok,[metrics]}2>application:ensure_all_started(folsom).{ok,[bear,folsom]}3>metrics:backend(metrics_folsom).ok4>metrics:new(counter,"c").ok5>metrics:update("c").ok6>folsom_metrics:get_metric_value("c").17>metrics:update("c", {c,1}).ok8>folsom_metrics:get_metric_value("c").2

Full doc is available in themetrics module.

$ rebar3 compile