Repay Borrow

The repay function transfers an asset into the protocol, reducing the user's borrow balance.

AErc20

function repayBorrow(uint repayAmount) returns (uint)

• msg.sender: The account which borrowed the asset, and shall repay the borrow.

• repayAmount: The amount of the underlying borrowed asset to be repaid. A value of -1 (i.e. 2 ^ 256 - 1) can be used to repay the full amount.

• RETURN: 0 on success, otherwise an Error code

Before repaying an asset, users must first approve the aToken to access their token balance.

CEther

function repayBorrow() payable

• msg.value [payable]: The amount of ether to be repaid, in wei.

• msg.sender: The account which borrowed the asset, and shall repay the borrow.

• RETURN: No return, reverts on error.

Solidity

CEther aToken = CEther(0x3FDB...);
require(aToken.repayBorrow.value(100)() == 0, "transfer approved?");

Web3 1.0

const aToken = AErc20.at(0x3FDA...);
aToken.methods.repayBorrow(10000).send({from: ...});