laravel tap

study.php

// https://laravel-news.com/using-sanctum-to-authenticate-a-react-spa

// The tap command is a short-hand way of saying “create the guard, then pass it to the closure in the second argument; 
// then return the guard”. Let’s look at createGuard:

$auth->extend('sanctum', function ($app, $name, array $config) use ($auth) {
    return tap($this->createGuard($auth, $config), function ($guard) {
        $this->app->refresh('request', $guard, 'setRequest');
    });
});