In handle_info function I have this:

def handle_info(:tick, items) do
  items2 = do_job(items)
   tick()
  {:noreply, items2}
end

In “do_job” I need to a) iterate throug items, b) make an http request which can take long and c) depending on a response, update a database and finish with the current item by removing it from “items” or merely update the database:

def do_job(items) do
  Enum.each(items, fn(a) -> # or Enum.map
    Task.start fn ->
      
      case external_request(a) do
        {:terminate, data} ->
          Repo.update(....)
          remove(a) # send a message to this GenServer to remove itself

        {:continue, data} ->
          Repo.update(....)
      end

    end
  end)
end

1. Even if I had Enum.map, how would I return a value fro do_job since it creates Task for each one and executes asyncronously?

2. Do I have to return it at all? I think I do because handle_info should return a tuple with a list of items in case of success

3. Should I use Task.start or maybe better Task.async and wait? If so, how exactly for my case? Yet the #2 will remain.