Avoid Duplicating Authorization Logic with Gate::define() and Gate::authorize()

Centralize authorization checks in Gate::define() and call Gate::authorize() in controllers instead of repeating manual if checks.

Scattering authorization checks across controllers leads to inconsistent security logic. Define permissions centrally using Gates and use Gate::authorize() to throw AuthorizationException automatically.

// AppServiceProvider::boot()
use Illuminate\Support\Facades\Gate;
use App\Models\User;
use App\Models\Post;

Gate::define('update-post', fn (User $user, Post $post) => $user->id === $post->user_id);

// Controller action
public function update(Request $request, Post $post)
{
    Gate::authorize('update-post', $post);
    // Proceeds only if authorized
}

• Centralizes authorization rules in AppServiceProvider or Policy classes
• Gate::authorize() throws HTTP 403 response automatically on failure
• Replaces repetitive if (! Gate::allows(...)) checks across controllers