listener.ex

defmodule PostgresPubSub.Listener do
  # ...

  require Logger

  @impl true
  def handle_info({:notification, _pid, _ref, "accounts_changed", payload}, _state) do
    with {:ok, data} <- Poison.decode(payload, keys: :atoms) do
      data
      |> inspect()
      |> Logger.info()

      {:noreply, :event_handled}
    else
      error -> {:stop, error, []}
    end
  end
end