Hey @Bedtimestory9 your post has been moved to the moderation queue because there isn’t really enough information for someone to help you here. How much Elixir do you know? What sort of system is this? What have you tried so far, and where did you get stuck?

Pretty much what the gorilla said.

A great resource to read is the output of mix phx.gen.auth. While it doesn’t provide this functionality out of the box, it’s really easy to tack on and the rest of the code is great study for how to properly implement authn.

Of course there are different ways to implement this with different trade offs but this probably what I would do. Firstly, for something like approval I prefer a dedicated field—approved_at as a timestamp—over a status so that what I’m going to use, but YMMV.

Assuming you’ve gen’d your auth with:

$ mix phx.gen.auth Accounts User users

Create a migration to add approved_at timestamp field to your users table, add the field to your User Schema (make sure it defaults to nil which means doing nothing).

In MyAppWeb.UserAuth look for def on_mount(:ensure_authenticated, .... This is where you will want to check if the user has been approved and deal with accordingly. You can change it to look something like this:

def on_mount(:ensure_authenticated, _params, session, socket) do
  socket = mount_current_user(socket, session)

  case socket.assigns.current_user do
    nil ->
      socket =
        socket
        |> Phoenix.LiveView.put_flash(:error, "You must log in to access this page.")
        |> Phoenix.LiveView.redirect(to: ~p"/users/log_in")

      {:halt, socket}

    %{approved_at: nil} ->
      socket =
        socket
        |> Phoenix.LiveView.put_flash(:error, "You have not been approved yet.")
        |> Phoenix.LiveView.redirect(to: ~p"/")

      {:halt, socket}

    _ ->
      {:cont, socket}
  end
end

As far as notifying admins and making screens to manage the requests, I’ll leave that part up to you. It’s a simple LiveView although if you want Email notifications that is a whole other thing.