In my custom module, I'm using StockRegistryInterface to set qty and save my product. But on Magento 2.3 I started facing the issue of having 0 salable qty right after saving the product.

[![Default stock 0][1]][1]


  [1]: https://i.sstatic.net/5IhvN.png


After digging a bit, I saw that StockRegistryInterface is deprecated and it was replaced with Multi Source Inventory. How should I save the qty of my product now?

Here is the piece of code where I do it with StockRegistryInterface:

            /* @var ProductInterface $product */
            $stockItem = $this->stock->getStockItemBySku($product->getSku());
            $stockItem->setQty($this->estoque_disponivel);
            $stockItem->setIsInStock(true);
            $this->stock->updateStockItemBySku($product->getSku(), $stockItem);