Respond with unauthorized instead of error

lib/sso_bsn_web/controllers/user_session_controller.ex

@@ -24,12 +24,17 @@ defmodule SsoBsnWeb.UserSessionController do
   end
 
   def check_auth(conn, _params) do
-    user = conn.assigns[:current_user]
+    if user = conn.assigns[:current_user] do
       conn
       |> put_resp_header("X-Auth-Username", user.username)
       |> json(%{
         username: user.username
       })
+    else 
+      conn
+      |> put_status(:unauthorized)
+      |> text("Unauthorized")
+    end
   end
 
   def redirect_next(conn, %{ "next" => next }) do

lib/sso_bsn_web/router.ex

@@ -75,7 +75,7 @@ defmodule SsoBsnWeb.Router do
   end
 
   scope "/", SsoBsnWeb do
-    pipe_through [:api, :fetch_session, :fetch_current_user, :require_authenticated_user]
+    pipe_through [:api, :fetch_session, :fetch_current_user]
 
     get "/whoami", UserSessionController, :check_auth
   end