Borrower - Repay a loan

Borrower: repay a loan

Repay a loan including lender's yield and protocol fee.

function repay(uint256 _loanId, uint256 _repayTimestamp) external;

Flow

• Check repay TX is sent by borrower.

• Repay timestamp consistency:

  • If the loan is not called you may repay "slightly late".

  • If the loan is called repayment must be exactly at call time.

• Compute amounts:

  • Compute loanDuration = _repayTimestamp - loan.startTime.

  • Compute amountOwed using getAmountOwed function.

  • Compute fee - fee is a percentage of lender’s yield, not of principal.

  • lenderAmount = amountOwed - fee.

• Transfers:

  • Transfer lenderAmount = amountOwed - fee USDC from borrower to lender.

  • Transfer fee from borrower to protocol fee recipient.

  • Transfer collateral from PolyLend Smart Contract to borrower.

• Cancel the loan by zeroing loan.borrower.

• Emit LoanRepaid.