GenServer

# Deleter.ex
defmodule Ekko.Deleter do
  use GenServer
  
  def start_link() do
    GenServer.start_link(__MODULE__, [], name: Deleter)
  end
  
  def handle_call(:delete, from) do
    IO.puts "handle_call in Deleter called"
    {:noreply, from}
  end
end


# test_controller.ex
GenServer.call(Deleter, :delete)

This is the error message:
** (exit) exited in: GenServer.call(Deleter, :delete, 5000)
** (EXIT) bad call: :delete