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Introduction
QTokens
Transfer
Total Supply
Underlying Balance
Exchange Rate
Get Cash
Total Borrow
Borrow Balance
Borrow Rate
Supply Rate
Total Reserve
Reserve Factor
Key Events
Qore
Market List
Enter Markets
Exit Markets
Get Markets In
Supply
Redeem with QToken
Redeem with Underlying
Borrow
Repay Borrow
Repay Borrow Behalf
Liquidate Borrow
Get Account Liquidity
Market Information
Close Factor
Liquidation Incentive
Qubit Distribution Speeds
Pending Qubit (or Accrued Qubit)
Claim Qubit
Key Events
Qubit Locker
qScore
Total qScore
Deposit
Locked Balance
Locked Period
Extend Lock Period
Unlocked Balance
Withdraw
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Exchange Rate
Each qToken is convertible into an ever increasing quantity of the underlying asset, as interest accrues in the market. The exchange rate between a qToken and the underlying asset is equal to:
exchangeRate = (getCash() + totalBorrow() - totalReserve()) / totalSupply()

QToken

function exchangeRate() external view returns (uint);
  • RETURN: The current exchange rate as an unsigned integer, scaled by 1 * 10^18.

Solidity

QToken qToken = QToken(<qTokenAddress>);
uint rate = qToken.exchangeRate();

Ethers.js

const qToken = await ethers.getContractAt(<qTokenABI>, <qTokenAddress>);
const rate = await qToken.exchangeRate();
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Ethers.js