defmodule HelloWorld.Application do # See https://hexdocs.pm/elixir/Application.html # for more information on OTP Applications @moduledoc false use Application @impl true def start(_type, _args) do children = [ # Start the PubSub system {Phoenix.PubSub, name: HelloWorld.PubSub} # Start a worker by calling: HelloWorld.Worker.start_link(arg) # {HelloWorld.Worker, arg} ] Supervisor.start_link(children, strategy: :one_for_one, name: HelloWorld.Supervisor) end end