how to store category slug in laravel code example

Example 1: laravel slug

$ composer require cviebrock/eloquent-sluggable

Example 2: laravel display category post by slug

Route::get(/category/{slug});

    public function postCategory($slug)
    {
        $posts = Post::where('slug', $slug)->get();

        return view('front.posts.category', compact('posts'));
    }