Agents

Agents execute transactions based on certain conditions. Variables from scenarios can be accessed via the scenarioRet variable and used as shown below.

Example Agent Code:

let cUSDContract = scenarioRet.cUSDContract;
try {
    let cUSDC = scenarioRet.cUSDC;
    let WBTC = scenarioRet.WBTC;
    let WETH = scenarioRet.WETH;
    let SUPPLIERS = scenarioRet.SUPPLIERS;
    let usdcContract = scenarioRet.usdcContract;
    let liquidator = scenarioRet.liquidator;
    let oracleContract = scenarioRet.oracleContract;

    await usdcContract.connect(liquidator).approve(cUSDC, "1000000000000000000000000");
    let liquidatableUsers = [];
    for (let i = 0; i < SUPPLIERS.length; i++) {
        let isUserLiquidable = await cUSDContract.isLiquidatable(SUPPLIERS[i]);
        let isBorrowCollateralized = await cUSDContract.isBorrowCollateralized(SUPPLIERS[i]);
        console.log("isUserLiquidable", isUserLiquidable);
        if (isUserLiquidable && !isBorrowCollateralized) {
            liquidatableUsers.push(SUPPLIERS[i]);
        }

        let collateralBalanceInBase = await oracleContract.getCollateralAvailableForPurchase();
        let quoteWethCollateral = await cUSDContract.quoteCollateral(WETH, collateralBalanceInBase);
        let collateralReserve = await cUSDContract.getCollateralReserves(WETH);
        await cUSDContract.connect(liquidator).absorb(liquidator.address, liquidatableUsers);
        console.log("collateralBalanceInBase", collateralBalanceInBase);
        await cUSDContract.connect(liquidator).buyCollateral(WETH, 0, collateralBalanceInBase.toString(), liquidator.address);
    }
    console.log("AGENT EXECUTION COMPLETED");

} catch (err) {
    console.log("error in agent", err);
}

In this code:

We check if users are liquidatable and push them into an array.

• At the end, we liquidate them all at once.

• Agents do not need to return anything.