Get product id to store attachments accordingly - laravel

Question

I currently have the add attachment button for each product on the product list page. After clicking the button, will proceed to add attachment form. How do I get the current product ID from the product table in order to store the attachment data into the attachment table?
Route
Route::post('/store/{product}', 'AttachmentController#store')->name('attachment.store');
Product Model
public function attachment()
{
return $this->hasMany(Attachment::class, 'product_id', 'id');
}
Attachment Model
public function product()
{
return $this->belongsTo(Product::class, 'product_id');
}
Controller
public function create()
{
return view('document.create', ['prod' => Product::select('id', 'name')->get()]);
}
public function store(Request $request, Product $product) {
$data['product_id'] = $product->id;
$data = $request->validate([
'file' => 'required',
'file.*' => 'mimes:csv,xlsx,pdf,docx',
]);
$attachmentData = [];
if($request->hasFile('file'))
{
foreach($request->file('file') as $file) {
$path = public_path('storage/attachments/'.$request->product_id);
$fileName = time().'-'.$file->getClientOriginalName();
$file->move($path, $fileName);
$attachmentData[] = $fileName;
}
$data['file'] = json_encode($attachmentData);
}
$attachment = Attachment::create($data);
return redirect()->route('product.index')->with('success','Attachment added successfully');
}
Blade View
<form method="POST" action="{{route('attachment.store')}}" enctype="multipart/form-data">
#csrf
<h3><b>Add Attachment</b></h3>
<input type="submit" class="btn btn-primary mr-2" value="Save">
<div class="row">
<h4 class="card-title">General</h4>
<input type="text" name="product_id" value="{{ $product->id ?? '' }}" hidden>
<div class="form-group">
<label for="name">Name</label>
<input type="text" id="name" class="form-control" name="name" required>
</div>
<div class="form-group">
<label>Attachment </label>
<div class="input-group-append">
<label for="attachment" class="btn btn-info">Upload</label>
<input id="attachment" type="file" name="file[]" multiple required>
</div>
</div>
</div>
</form>

Answer 1

You have to use form action like below
<form method="POST" action="{{route('attachment.store',['product'=>$product->id])}}" enctype="multipart/form-data">