How to fix Closure ? not work in laravel 8

Question

Unable to prepare route [api/user] for serialization. Uses Closure. at vendor/laravel/framework/src/Illuminate/Routing/Route.php:1150

Answer 1

pls run php artisan route:list and check if there is any Closure in that list.

Answer 2

You can't cache routes if you are using a closure. The closure is this part public function (Request $request) { return $request->user(); }

Instead, if you move the code into a controller you'll be able to cache the routes and eliminate the error.