We have some tests in place to make sure that our code works well enough, but we haven't done anything to actually secure the creation of new polls in our application. We want to make sure that the user is actually logged in - and if they're not, we need to be able to redirect them to the root page with a message explaining the situation. For this, we're going to write a Plug module so that we can reuse this code anywhere we need it. We'll call this VerifyUserSession, as that is the intended use case of the plug. Let's create lib/vocial_web/verify_user_session.ex and give it a starting skeleton, shown as follows:
defmodule VocialWeb.VerifyUserSession do def init(opts), do: opts def call(conn, _opts) do conn ...
