MiraiLocker

MiraiLocker is an onchain locker for Sui objects with key + store abilities.

MiraiLocker was inspired by the coin lockers in Japanese train stations. MiraiLocker is useful for situations that require multi-object storage locked behind a single object. For example, if you're conducting an onchain auction for multiple items, you can lock the items in MiraiLocker and auction off the key instead of re-implementing the logic for tracking and storing multiple items. MiraiLocker doesn't have built-in Kiosk support at this time, but you can create a separate Kiosk and store its associated KioskOwnerCap in a MiraiLocker.

A typical MiraiLocker lifecycle looks like this:

1. The creator creates a new locker, and is issued a master key.
2. The creator uses the master key to add items to the locker.
3. The creators uses the the master key to lock the locker, set a claim expiration deadline, and issue a claim key.
4. The creator sends the claim key to the claimer – this can either be a direct or transfer, or something more complex like an auction.
5. The claimer can claim the items in the locker before the claim expiration deadline.
6. After the claim expiration deadline, the creator can use the master key to claim any unclaimed items and destroy the locker.