Laravel route request()->fullUrl

My current uri: http://vue-dmenu.test/restaurants/Jn87fwrtZj?tag=oLin77gUPs

web.php file:

Route::resource('restaurants', RestaurantController::class);
Route::post('/items', [ItemController::class, 'store'])->name('items.store');

This is my Restaurant Controller:

public function index()
{
    $restaurants = Restaurant::where('user_id', Auth::user()->id)->get()->sortByDesc('created_at');
    return Inertia::render('Restaurant/Index', [
        'restaurants' => $restaurants,
    ]);
}

public function create()
{
    return Inertia::render('Restaurant/Index', [
        'show' => true,
    ]);
}

public function store(Request $request)
{
    $attributes = request()->validate([
        'name' => 'required',
        'table_amount' => 'required|numeric',
        'bg_img_url' => 'required|image',
        'logo_url' => 'required|image',
        'khqr_url' => 'required|image',
        'home_address' => 'required',
        'street_address' => 'required',
        'commune' => 'required',
        'district' => 'required',
    ]);

    $attributes['id'] = Str::random(10);
    $attributes['user_id'] = Auth::user()->id;
    $attributes['qr_code_url'] = 'https://chart.googleapis.com/chart?chs=300x300&cht=qr&choe=UTF-8&chl=' . $_SERVER['APP_URL'] . '/restaurants/' . $request->name;
    $attributes['bg_img_url'] = $request->file('bg_img_url')->store('restaurants/' . $request->name . '/background');
    $attributes['logo_url'] = $request->file('logo_url')->store('restaurants/' . $request->name. '/logo');
    $attributes['khqr_url'] = $request->file('khqr_url')->store('restaurants/' . $request->name . '/khqr');

    Restaurant::create($attributes);
}

public function show(Restaurant $restaurant)
{
    $tags = $restaurant->tags;

    $categories = Category::where('tag_id', request('tag'))->get();

    $items = Item::where('category_id', request('category'))->get();

    return Inertia::render('Category/Index', [
        'restaurant' => $restaurant,
        'tags' => $tags,
        'categories' => $categories,
        'items' => $items,
        'showItem' => request()->has('category')
    ]);
}

This is my ItemController:

public function store()
{
    dd(request('tag')); //return null
    $attributes = request()->validate([
        'name' => 'required',
        'price' => 'required|numeric',
        'description' => 'required',
        'item_img_url' => 'required|image',
        'is_available' => 'required|boolean',
        'category_id' => 'required',
    ]);

    $attributes['id'] = Str::random(10);
    $attributes['item_img_url'] = request()->file('item_img_url')->store('items/' . $request->name);

    Item::create($attributes);
}

In restaurants.show when I use request('tag') or request('category') it returns the value of the query. But in items.store it returns null. And when I use request()->fullUrl in items.store it returns http://vue-dmenu.test/items, which is different from my current url. I can figure out a little bit that maybe because of route conflict or something that the query only return the value in restaurant route but not in item, because I am using restaurant route now. Since I am still new to laravel is there a way to fix this, or is there a way to get the current uri instead of http://vue-dmenu.test/items when use request()->fullUrl in item controller?

Thanks!!