app/Processors/Inventory/InventoryStockProcessor.php
public function store(InventoryStockRequest $request, $itemId)
    {
        $item = $this->inventory->findOrFail($itemId);

        $stock = $item->stocks()->getRelated();

        return $this->dispatch(new Store($request, $item, $stock));
    }
public function store(InventoryStockRequest $request, $itemId)
    {
        $item = $this->inventory->findOrFail($itemId);

        $stock = $item->stocks()->getRelated();

        return $this->dispatch(new Store($request, $item, $stock));
    }
Creates a new stock on the specified item.

@param InventoryStockRequest $request
@param int|string            $itemId

@return bool