Building Modules

Modules manage collateral for loans.

Interface

interface ILoanModule {
    function setup(address caller, TermKey calldata termKey, bytes calldata data) external returns (bool);
    function verify(address caller, TermKey calldata termKey, LoanKey calldata loanKey, bytes calldata data) external returns (bool);
    function beforeLoan(address caller, LoanKey calldata loanKey, bytes calldata data) external returns (bool);
    function afterLoan(address caller, LoanKey calldata loanKey, bytes calldata data) external returns (bool);
    function liquidate(TermKey calldata termKey, LoanKey calldata loanKey, address beneficiary, uint256 repayment, bytes calldata data) external;
}

Responsibilities

setup() - Configure module for a term verify() - Validate loan parameters before allocation (must revert if unsafe) beforeLoan() - Lock collateral from borrower afterLoan() - Release collateral after settlement liquidate() - Handle defaulted loans

Built-in Modules

ERC20LTV - Token collateral with LTV validation ERC721 - NFT collateral for P2P lending Attestation - Identity/credential-based lending

Integration Notes

• Implement the interface above

• Validate thoroughly in verify()

• Only release collateral after confirming settlement

• Reference deployed contracts for implementation details