Inventory serialization

[simon816]

Inventory itself is not serializable. I think this other thread is similar to what you’re asking here.

My response:

Give Player a Custom Inventory

What you need is not directly available in the API, but I think it’s still possible. You need to iterate over the inventory, it’s children and each itemstack. Store the data in some structure. Then at a later date you rebuild the inventory from the structure.