+ /**
+ * Web before middleware action.
+ * Runs before the request is handled but after all other middleware apart from those
+ * that depend on the current session user (Localization for example).
+ * Provides the original request to use.
+ * Return values, if provided, will be used as a new response to use.
+ *
+ * @param \Illuminate\Http\Request $request
+ * @returns \Illuminate\Http\Response|null
+ */
+ const WEB_MIDDLEWARE_BEFORE = 'web_middleware_before';
+
+ /**
+ * Web after middleware action.
+ * Runs after the request is handled but before the response is sent.
+ * Provides both the original request and the currently resolved response.
+ * Return values, if provided, will be used as a new response to use.
+ *
+ * @param \Illuminate\Http\Request $request
+ * @param \Illuminate\Http\Response|\Symfony\Component\HttpFoundation\BinaryFileResponse $response
+ * @returns \Illuminate\Http\Response|null
+ */
+ const WEB_MIDDLEWARE_AFTER = 'web_middleware_after';
+