Architecture

The PawnSpace architecture consists mainly of 3 main contracts.

• PawnFactory.sol

• PawnSpace.sol

• PawnOffer.sol

Let us go through what each contract does in brief:

PawnFactory.sol

The protocol begins with a Factory contract which deploys a PawnSpace for each existing NFT contract on the parent chain. A PawnSpace consists of two smart contracts: one to house the Order NFTs, and another to house the Offer NFTs.

PawnSpace.sol

PawnSpace.sol keeps track of Orders and their specific parameters. It contains functions for creating Orders, modifying auto-accept/instant-loan parameters, accepting Orders, paying back loans, and withdrawing an NFT from a defaulted loan.

PawnOffer.sol

It primarily tracks the Offers in the protocol. The Offer contract contains functions for creating Offers towards an existing Order, and auto-accepting loans.

Cancelling/burning offers and orders that are in-active is also possible.