Behaviour contract for custom Arrea Engine loggers.

Implementing this behaviour allows projects to provide their own logger formatter that integrates with Elixir's :logger infrastructure while maintaining full control over formatting and output style.

Usage

defmodule MyApp.Logger do
  @behaviour Arrea.Logging.Behaviour

  @impl true
  def log(:info, message, metadata) do
    IO.puts("[INFO] #{message}")
  end

  @impl true
  def format(level, message, metadata) do
    "#{DateTime.utc_now()} [#{level}] #{message}"
  end
end

Configuration

# config/config.exs
config :arrea, :logger_formatter, MyApp.Logger