blog-defi-alert.py

from web3 import Web3
import requests

CONTRACT_ADDRESS = '0x39aa39c021dfbae8fac545936693ac917d5e7563'

def main():
    w3 = Web3(Web3.HTTPProvider('https://mainnet.infura.io/v3/<YOUR PROJECT ID>'))
    r = requests.get(f'https://api.etherscan.io/api?module=contract&action=getabi&address={CONTRACT_ADDRESS}')
    
    checksummed_address = w3.toChecksumAddress(CONTRACT_ADDRESS)
    contract = w3.eth.contract(address=checksummed_address, abi=r.json()['result'])
    liquidity = contract.functions.getCash().call()
    total_borrow = contract.functions.totalBorrows().call()
    total_supply = liquidity + total_borrow

    if (total_borrow / total_supply) > 0.65 or liquidity < 10000000000000:
        r = requests.post(
            'https://api.mailgun.net/v3/<YOUR DOMAIN>/messages',
            auth=('api', '<YOUR API KEY>'),
            data={'from': 'DeFi Alerts <alerts@defi.com>',
            'to': ['<YOUR EMAIL ADDRESS>'],
            'subject': "High utilization or low liquidity",
            'text': f"Current rate {total_borrow / total_supply}\n" + 
                    f"Current liquidity {liquidity / 1000000}"})

if __name__ == '__main__':
    main()