Positioned Item Stack (Data Type)

An Object that describes a new item stack along with a position in an inventory. It is an Item Stack with a slot field.

Fields

Field	Type	Default	Description
`item`	Identifier	required	The ID of a registered item.
`amount`	Integer	`1`	The size of the stack.
`tag`	NBT	optional	NBT data of the item.
`slot`	Integer	optional	The inventory slot the stack goes in. Without it, the stack goes in the first free slot.

"stack": {
    "item": "minecraft:shield",
    "slot": 40
}

A shield placed in the offhand slot of a player's inventory.