Example: Extending Auth

Auth logic is frequently reused across controllers and middleware
A macro can encapsulate common checks behind a readable method name
The result is cleaner, more intentional code at the call site

use Illuminate\Auth\SessionGuard;
use Illuminate\Support\Facades\Auth;

// Before: verbose guard check repeated everywhere
if (Auth::guard('user')->user() && Auth::guard('user')->user()->isAdmin()) {
    // ...
}

// Register a macro on SessionGuard
SessionGuard::macro('isAdmin', function () {
    return $this->user()?->isAdmin() ?? false;
});

// After: clean and readable
if (Auth::isAdmin()) {
    // ...
}

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