Annex Docs
Annex Docs

Enter Markets

Enter into a list of markets - it is not an error to enter the same market more than once. In order to supply collateral or borrow in a market, it must be entered first.
function enterMarkets(address[] calldata aTokens) returns (uint[] memory)
  • msg.sender: The account which shall enter the given markets.
  • aTokens: The addresses of the aToken markets to enter.
  • RETURN: For each market, returns an error code indicating whether or not it was entered. Each is 0 on success, otherwise an Error code.
Comptroller troll = Comptroller(0xABCD...);
SToken[] memory aTokens = new SToken[](2);
aTokens[0] = SErc20(0x3FDA...);
aTokens[1] = SEther(0x3FDB...);
uint[] memory errors = troll.enterMarkets(aTokens);
Web3 1.0
const troll =;
const aTokens = [,];
const errors = await troll.methods.enterMarkets(aTokens).send({from: ...});