supervised_pool_worker.ex

Demo how to create supervised pool worker
defmodule SupPoolWorker do
  @moduledoc false
  use Supervisor
  def start_link(name,number) do
    Supervisor.start_link(SupPoolWorker,number,name: name)
  end

  def init(number) do
    children = for i <- 1..number, do: worker(DBWorker,[String.to_atom("Worker#{i}")], id: String.to_atom("Worker#{i}"))
    supervise(children, strategy: :one_for_one)
  end
end

defmodule DBWorker do
  @moduledoc false
  use GenServer
  def start_link(name) do
    IO.puts "worker #{name} start"
    GenServer.start_link(DBWorker,name: name)
  end
end