Protocol Enumerable not implemented for error with guardian login

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I tried this:

  def login_reply({:ok, user}, conn) do
    put_flash(conn, :info, "Welcome back!")
    new_conn = Guardian.Plug.sign_in(conn, Guaridan, user, %{}, [])
    redirect(new_conn, to: "/secret")
  end
  def login_reply({:error, reason}, conn) do
    conn
    |> put_flash(:error, to_string(reason))
    |> new(%{})
  end

And, I got this warning:


~/phoenix_apps/dog$ mix phx.server

warning: function Dog.UserManager.Guardian.Plug.sign_in/5 is undefined or private. Did you mean one of:

      * sign_in/2
      * sign_in/3
      * sign_in/4

  lib/dog_web/controllers/session_controller.ex:28

...
...

In iex:

~/phoenix_apps/dog$ iex -S mix
Erlang/OTP 20 [erts-9.3] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:10] [hipe] [kernel-poll:false]
Interactive Elixir (1.8.2) - press Ctrl+C to exit (type h() ENTER for help)

iex(1)> h Guardian.Plug.sign_in                  

          def sign_in(conn, impl, resource, claims \\ %{}, opts \\ [])          

  @spec sign_in(
          Plug.Conn.t(),
          module(),
          any(),
          Guardian.Token.claims(),
          Guardian.options()
        ) :: Plug.Conn.t()

iex(2)>

That looks like 5 arguments to me! So, I decided to pick the two most important arguments, and go with that:

new_conn = Guardian.Plug.sign_in(conn, user)

That got rid of the Enumerable error. Now, I’ve got a routing error that I’m working on.