Aave Flash Loan Tutorial

Create an Aave Flash Loan arbitrage smart contract from scratch in this comprehensive flash loan tutorial by Block Explorer.

Project repo:

https://github.com/waveboy800/aave-flashloan

Aave v3 Flash Loan documentation:

https://docs.aave.com/developers/guides/flash-loans https://docs.aave.com/developers/deployed-contracts/v3-testnet-addresses

DAI-TestnetMintableERC20-Aave token (Goerli):

0xDF1742fE5b0bFc12331D8EAec6b478DfDbD31464

USDC-TestnetMintableERC20-Aave token(Goerli):

0xA2025B15a1757311bfD68cb14eaeFCc237AF5b43

AAVE PoolAddressProvider (Goerli):

0x5E52dEc931FFb32f609681B8438A51c675cc232d

Remix imports:

import {FlashLoanReceiverBase} from "https://github.com/aave/protocol-v2/blob/master/contracts/flashloan/base/FlashLoanReceiverBase.sol";

import {ILendingPool} from "https://github.com/aave/protocol-v2/blob/master/contracts/interfaces/ILendingPool.sol";

import {ILendingPoolAddressesProvider} from "https://github.com/aave/protocol-v2/blob/master/contracts/interfaces/ILendingPoolAddressesProvider.sol";

import {IERC20} from "https://github.com/aave/protocol-v2/blob/master/contracts/dependencies/openzeppelin/contracts/IERC20.sol";

Dex.sol deployed (Goerli):

npx hardhat run --network goerli scripts/deployDex.js

0xD6e8c479B6B62d8Ce985C0f686D39e96af9424df

FlashLoan deployed

npx hardhat run --network goerli scripts/deployFlashLoan.js

0x438949474510066964C635a20aACF3b085d11e02

FlashLoanArbitrage deployed

npx hardhat run --network goerli scripts/deployFlashLoanArbitrage.js

0xbF023C124aC10DA2Da2759D58bd26858f69B7094

DEX.sol deployed

0x950cE204F7f4391Ed72424B7456C6CCfEc7BB05E

Add liquidity to Dex.sol:

USDC 1500

DAI 1500

Approve:

USDC 1000000000

DAI 1200000000000000000000

Request Loan - USDC (6 decimal):

0xA2025B15a1757311bfD68cb14eaeFCc237AF5b43,1000000000 // 1,000 USDC

0xA2025B15a1757311bfD68cb14eaeFCc237AF5b43,1000000 // 1 USDC