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prom_ex

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Prometheus metrics and Grafana dashboards for all of your favorite Elixir libraries

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prom_ex lib prom_ex grafana_client connection.ex
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lib/prom_ex/grafana_client/connection.ex 

defmodule PromEx.GrafanaClient.Connection do

  @moduledoc """

  This struct encapsulates all of the data necessary

  to connect to a Grafana instance.

  """



  @type t :: %__MODULE__{

          finch_process: module(),

          base_url: String.t(),

          auth_token: String.t()

        }



  defstruct finch_process: nil, base_url: nil, auth_token: nil



  @doc """

  Build a connection struct for connecting to Grafana.

  """

  @spec build(finch_process :: module(), base_url :: String.t(), auth_token :: String.t()) :: __MODULE__.t()

  def build(finch_process, base_url, auth_token) do

    %__MODULE__{

      finch_process: finch_process,

      base_url: normalize_host(base_url),

      auth_token: "Bearer #{auth_token}"

    }

  end



  defp normalize_host(host_string) do

    host_string

    |> URI.parse()

    |> Map.put(:path, nil)

    |> Map.put(:query, nil)

    |> URI.to_string()

  end

end