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Curve 3pool Big Withdrawn Monitoring
Here we take Curve 3pool as an example to monitor the proportion of USDT:
The script code is as following:
export const name = 'Curve 3Pool Big Withdraw';
export const description = 'Big transfer';
export const tag = 'curve';
const { utils, BigNumber } = ethers;
const POOLS = [
{
address: '0xdac17f958d2ee523a2206206994597c13d831ec7',
symbol: 'USDT',
decimals: 6,
},
{
address: '0x6b175474e89094c44da98b954eedeac495271d0f',
symbol: 'DAI',
decimals: 18,
},
{
address: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
symbol: 'USDC',
decimals: 6,
},
];
export const run = async () => {
const logs = await sdk.onLogs('ethereum', {
topics: [
'0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
utils.hexZeroPad('0xbebc44782c7db0a1a60cb6fe97d0b483032ff1c7', 32),
],
}, {version: "001"});
const normalized = logs
.map((log) => {
const pool = POOLS.find((i) => i.address === log.address.toLowerCase());
if (!pool) {
return null;
}
const { symbol, decimals } = pool;
const {
data,
topics: [, , paddedToAddress],
transactionHash,
blockNumber
} = log;
const toAddress = '0x' + paddedToAddress.slice(-40);
const amount = Number(utils.formatUnits(BigNumber.from(data), decimals));
return {
symbol,
blockNumber,
transactionHash,
toAddress,
amount,
};
})
.filter((i) => !!i);
return normalized;
};
Once the Script is created, it can be saved and run, the result is as below (array):
[
{
"symbol": "USDT",
"blockNumber": 15178570,
"transactionHash": "0x5a9af11bb5f35cf31db318fa185827f682c2db7c76abc67d208b27309033d491",
"toAddress": "0x4a14347083b80e5216ca31350a2d21702ac3650d",
"amount": 14.189023
},
{
"symbol": "USDT",
"blockNumber": 15178579,
"transactionHash": "0xd7dbb2c7688660545f793daaa72a0ea5ccc855a5fef535ce1bfbfcf8aa52f3ae",
"toAddress": "0x0eb747bf142ce0faabbf7716681b0f6bb12a0a28",
"amount": 2242352.016762
},
{
"symbol": "USDC",
"blockNumber": 15178584,
"transactionHash": "0x16fe1c1f45143c20e6404deefe365f980081731fca4693dc0d6fa6687c1ec93b",
"toAddress": "0x7cf67a1a486d5716517a989f180112ba26d1afcf",
"amount": 202.082687
}
]
So the alert will notify me when the amount is above 1,500,000, and some variants from the result are filled in the notify message. The condition will be checked every 1 minute.
👀 A big withdraw {amount} {symbol} from @CurveFinance 3pool: https://etherscan.io/tx/{transactionHash} Customize your own monitoring here: https://compassdao.com/scripts/0xf9c4e606cb0c497c. Powered by @compassDAO
Now you get your perfect Twitter bot, by assembling the message with Etherscan prefix, you can even link your auto Tweet with the Etherscan link:
Last modified 1yr ago