README.md

Prometheus.ex

Elixir Prometheus.io client based on Prometheus.erl.

Dashboard from Monitoring Elixir apps in 2016: Prometheus and Grafana by @skosch.

• IRC: #elixir-lang on Freenode;
• Slack: #prometheus channel - Browser or App(slack://elixir-lang.slack.com/messages/prometheus).

Example

defmodule ExampleInstrumenter do
  use Prometheus.Metric

  def setup do    
    Histogram.new([name: :http_request_duration_milliseconds,
                   labels: [:method],
                   buckets: [100, 300, 500, 750, 1000],
                   help: "Http Request execution time"])
  end

  def instrument(%{time: time, method: method}) do
    Histogram.observe([name: :http_request_duration_milliseconds, labels: [method]], time)
  end
end

Integrations / Collectors / Instrumenters

• Ecto collector
• Plugs Instrumenter/Exporter
• Elli middleware
• Fuse plugin
• Phoenix instrumenter
• Process Info Collector
• RabbitMQ Exporter

Installation

Available in Hex, the package can be installed as:

1. Add prometheus_ex to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:prometheus_ex, "~> 1.0.0"}]
end
```

2. Ensure prometheus_ex is started before your application:

```elixir
def application do
  [applications: [:prometheus_ex]]
end
```