Elixir custom logging filter

application.ex

# Add line to application
:logger.add_primary_filter(:noise_filter, {&DevelopmentLogger.filter/2, []})

development_logger.ex

defmodule DevelopmentLogger do
  @moduledoc """
    For DEVELOPMENT use ONLY !!!
    Filter out logs by module

    Reference - https://write.as/yuriploc/elixir-logger-and-erlang-filters
  """
  IO.puts("For DEVELOPMENT use ONLY !!!")
  @noisy_modules [Ecto.Adapters.SQL, Phoenix.Logger]

  @spec filter(map(), keyword()) :: :stop | :ignore | map()
  def filter(%{meta: %{mfa: {module, _, _}}} = log_event, _opts) when module in @noisy_modules do
    # IO.inspect(module, label: "Noisy Module:")
    :stop
  end

  @spec filter(map(), keyword()) :: :stop | :ignore | map()
  def filter(%{meta: %{mfa: {module, _, _}}} = log_event, _opts) do
    # IO.inspect(module, label: "Unfiltered Module:")
    :ignore
  end
end

Use during development to reduce logs to specific modules under development.
Add the line to application.ex -> start function