script to grab a sorted list of the largest holders of rfDAI
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const ethers = require('ethers'); | |
const STARTING_BLOCK = 41918655; | |
const FINAL_BLOCK = 44000000; | |
async function main() { | |
const provider = new ethers.providers.JsonRpcProvider("https://rpc.ankr.com/fantom/"); | |
let balances = {}; | |
for (let i = STARTING_BLOCK; i < FINAL_BLOCK;) { | |
console.log(`Block ${i}: (${Math.floor((i - STARTING_BLOCK) / (FINAL_BLOCK - STARTING_BLOCK) * 100)}%)`) | |
filter = { | |
address: "0x77dc33dC0278d21398cb9b16CbFf99c1B712a87A", | |
topics: [ "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef" ], | |
fromBlock: i, | |
toBlock: i + 2500 | |
}; | |
try { | |
const logs = await provider.getLogs(filter); | |
for (log of logs) { | |
let from = "0x" + log.topics[1].slice(-40); | |
let to = "0x" + log.topics[2].slice(-40); | |
let amt = parseFloat(ethers.utils.formatEther(ethers.BigNumber.from(log.data))); | |
balances[from] = balances[from] ? balances[from] - amt : -amt; | |
balances[to] = balances[to] ? balances[to] + amt : amt; | |
} | |
i += 2500; | |
} catch (err) { | |
console.log(err) | |
} | |
} | |
console.log("-----------------------") | |
sorted = Object.keys(balances).sort((a,b) => balances[a] - balances[b]) | |
for (addr of sorted) { | |
console.log(`${ethers.utils.getAddress(addr)}: ${balances[addr]}`) | |
} | |
} | |
main(); |
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