diff --git a/packages/app/lib/app.js b/packages/app/lib/app.js
index dd40059..7c391ca 100644
--- a/packages/app/lib/app.js
+++ b/packages/app/lib/app.js
@@ -19,4 +19,8 @@ const registerMultipleRoutes = (app, routes) => {
   });
 };
 
-module.exports = { createApp, registerRoute, registerMultipleRoutes };
+const addMiddleware = (app, middleware) => {
+  app.use(middleware);
+}
+
+module.exports = { createApp, registerRoute, registerMultipleRoutes, addMiddleware };