Having a list of strings where every string represents an argument for a child, how can I start them all after DynamicSupervisor.init? Or should I use plain Supervisor? Or am I doing it wrong at all? Thanks

If I add lines |> Enum.each(&add/1) after DynamicSupervisor.init, it doesn’t seem to work and as I understand it’s a bad practice to do this inside init.

application.ex

    children = [
      {Pbot.Stash, []},
      {Pbot.SymbolSupervisor, ["one", "two", "three"]}
    ]

symbol_supervisor.ex

defmodule Pbot.SymbolSupervisor do
  use DynamicSupervisor

  def start_link(lines) do
    DynamicSupervisor.start_link(__MODULE__, lines)
  end

  def init(lines) do
    DynamicSupervisor.init(strategy: :one_for_one)
    # lines |> Enum.each(&add/1)
  end

  def add(line) do
    {:ok, _pid} = DynamicSupervisor.start_child(__MODULE__,  {Pbot.M, line})
  end
end

error

04:18:17.411 [info]  Application pbot exited: Pbot.Application.start(:normal, []) returned an error: shutdown: failed to start child: Pbot.SymbolSupervisor
    ** (EXIT) exited in: GenServer.call(Pbot.SymbolSupervisor, {:start_child, {{Pbot.M, :start_link, [[%Pbot.Pair{...}, %Pbot.Pair{...}]]}, :transient, 5000, :worker, [Pbot.M]}}, :infinity)
        ** (EXIT) process attempted to call itself