Catch msg when gen-server killed

How to

  1. SET TO SEND TERMINATE MESSAGE

    ## GENSERVER
def init() do
  ## ...
  Process.flag(:trap_exit, true)
  ## ...
end

  2. Kill PROCESS

  3. CATCH

    def terminate(reason, state) do
  Logger.info("#{inspect(__MODULE__)} >> terminate| reason: #{inspect(reason)} | state: #{inspect(state)}")
end