auction keeper

Flash liquidation bot and stats printer for Rico Credit System 0.

On liquidation, keeper calls strat.fill_flip, which flash borrows Rico to fill the liquidation. fill_flip then:

(a) if the ilk is erc20, trades the tokens through UniswapV3 for Rico to pay down the loan, or

(b) if the ilk is univ3, collects the tokens from the Uniswap positions and trades them through UniswapV3 to pay down the loan. It stops collecting tokens from Uniswap positions when it has enough Rico, so the user ends up with some ERC20 tokens and some UniswapV3 positions containing ERC20 tokens.

getting started

You need ipfs daemon running.

• npm run initialize

deploying a new strat

• npx hardhat --network <network> console

In hardhat console:

• dpack = require('@etherpacks/dpack')
• ali = await ethers.getSigner()
• pack = await hre.run('deploy-strat', { netname: <name of packfile's network>, writepack: 'true', tokens: <tokens_path> }
• dapp = await dpack.load(pack, ethers, ali)

running the keeper bot

In hardhat console:

• {runKeeper, printStats} = require('./keeper')
• await runKeeper('./args.json', ali)

args.json has the following elements:

• netname: the lowercase network name ('arbitrum')
• ricopack: IPFS CID pointing to core rico credit system pack
• aggpack: IPFS CID pointing to chainlink aggregators pack
• fliptime: Time between ilk scans in ms
• aggs: Object mapping chainlink data feed pair -> array of feeds to update when the aggregator updates
• flip: true if bailing urns, false if just collecting stats

To display urn stats:

• printStats()