Add ability to request the port elli's running on?

[Deleted user]

👋

Something like

-spec port(Server :: atom | pid) -> {ok, inet:port_number()} | {error, any}.
port(Server) ->
  gen_server:call(Server, port).
  
%% @hidden
handle_call(port, _From, State) ->
  {reply, elli_tcp:port(State#state.socket), State}.

and in elli_tcp:

port({plain, Socket}) -> inet:port(Socket).
port({ssl, Socket}) -> {error, not_supported}. % don't care about ssl

I mostly would need it to run tests concurrently in elixir:

  setup_all do
    {:ok, elli_pid} = Plug.Adapters.Elli.http(__MODULE__, [], port: 0)
    {:ok, port} = :elli.port(elli_pid)
    on_exit(fn ->
      :ok = :elli.shutdown(elli_pid)
    end)

    {:ok, port: port}
  end

  # ...

  test "does that thing", %{port: port} do
    resp = TestClient.get("http://localhost:#{port}/hello")
    assert resp.status_code == 200
    assert resp.body == "hello"
  end

Or maybe there are other ways for elli to bind to a random port such that I'd know about the port elli did bind to?

[Eric Bailey]

Instead, couldn't you generate a list of ports and spin up multiple instance of elli from that, keeping track of their ports?

[Deleted user]

What if the ports are already taken by other processes running on the system? I'd need to handle eaddrinuse errors then ...

[Eric Bailey]

I'm not opposed to reviewing a PR for this.

[Eric Bailey]

Closing this due to inactivity and ghost status.