d1efad9bf0
**What** Currently, we are potentially providing an array of selector/data leading to fetching data sequentially before running on update which will fetch data again in batch and perform the update. Now we can pass the data directly which includes the id already and only perform one bulk fetch + one bulk update. This pr also include a fix on the inventory validation, currently, only the item to update inventory is being checked, with this pr we also check the inventory for the items that needs to be created
Cart Module
A Cart is a collection of items that a customer intends to purchase. The Cart also stores where the items should be shipped, how they should be shipped, how the goods will be paid for and who the customer is. The Cart facilitates calculations of totals and validation of purchase flows.