Rheostat

A confugurable stats reporter.

Rheostat has the same functional interface as Metrix and Statix and includes adapters for each.

Rheostat can be configured to use one or the other (or any other adapter you want to configure).

Metrix is good for logdrain style metrics. Statix is good for StatsD metrics.

The latter means it works great with DataDog through the DataDog Heroku buildpack.

Installation

def deps do
  [
    {:rheostat, "~> 0.1.0"},
  ]
end

Configuration

The most common way to use Rheostat is to configure it to use Metrix in the dev and test profiles and to use Statix in prod.

# dev, test
config :metrix,
  prefix: "my-app."

config :rheostat, adapter: Rheostat.Adapter.Metrix

# prod
config :statix,
  prefix: "my-app"

config :rheostat, adapter: Rheostat.Adapter.Statix

The Metrix adapter is also the default.

Finally, the Statix addapter requires initialization, so add this to your application start:

  def start(_type, _args) do
    :ok = Rheostat.connect()
  end

Usage

Because Rheostat has the same function interface as Metrix you can replace:

  import Metrix

with:

  import Rheostat

Or globaly replace Metrix with Rheostat.

There may be other more clever ways to do that as well.