laravel api route not detecting authenticated user code example

Example 1: laravel 8 make:auth

php artisan migrate
npm install && npm run dev

Example 2: Route::auth(); giving error in laravel 7

Do this step from the upgrade guide 
https://laravel.com/docs/7.x/upgrade#authentication-scaffolding

############
composer require laravel/ui "^2.0"

Example 3: authentication in laravel tutorial

laravelAuth