This demonstrates a flash loan with Aave V3 used for triangular arbitrage (DAI/USDT/USDC) with Uniswap V3, tested on Arbitrum mainnet fork with some recent block number pinned as in .env.example.
To ensure the flash loan contract is always able to repay the loan, even if the arbitrage would result in a complete loss of borrowed funds, the script first impersonates an existing DAI token holder to send both loaned amount and premium to the flash loan contract.
- copy
.env.exampleto.envand replace<KEY>with your Alchemy key for Arbitrum mainnet npm inpm run flash-loan