Stack JSON Syntax

Item Stack

count is an optional key for specifying the size of the stack, defaults to one, must be at least one.

nbt is an optional key for specifying any NBT the Item Stack has.

{
  "item": REGISTRY_NAME,
  "count": int,
  "nbt": string
}

Fluid Stack

nbt is an optional key for specifying any NBT the Fluid Stack has.

{
  "fluid": REGISTRY_NAME,
  "amount": int,
  "nbt": string
}

Gas Stack

{
  "gas": REGISTRY_NAME,
  "amount": long
}

Infusion Stack

{
  "infuse_type": REGISTRY_NAME,
  "amount": long
}