diff --git a/cmd/server/main.go b/cmd/server/main.go
index f2fb698..31e62e9 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -66,6 +66,10 @@ func (cfg Config) NewHandler() Handler {
 	}
 }
 
+func (s Session) Empty() bool {
+	return s == (Session{})
+}
+
 func runHTTP(ctx context.Context, cfg Config) error {
 	server := &http.Server{
 		Addr:    cfg.Addr,
@@ -105,7 +109,7 @@ func (h Handler) serveHTTP(w http.ResponseWriter, r *http.Request) error {
 	return h.handle(session, w, r)
 }
 
-func (h Handler) auth(r *http.Request) (session, error) {
+func (h Handler) auth(r *http.Request) (Session, error) {
 	user, pass, ok := r.BasicAuth()
 	if !ok {
 		return Session{}, nil