miguelmota

async function getEtherscanLogs (chain: string, fromBlock: number, toBlock: number, address: string, topic0: string, topic1?: string) {
  const baseUrl = 'https://api-goerli.etherscan.io'
  let url = `${baseUrl}/api?module=logs&action=getLogs&address=${address}&fromBlock=${fromBlock}&toBlock=${toBlock}&topic0=${topic0}&page=1&offset=0&apikey=YourApiKeyToken`
  if (topic1) {
    url += `&topic0_1_opr=and&topic1=${topic1}`
  }
  const res = await fetch(url)
  const json = await res.json()
  const logs = json.result
  return logs

miguelmota

async function getEtherscanTxs(chain: string, accountAddress: string) {
  const baseUrl = 'https://api-goerli.etherscan.io'
  const url = `${baseUrl}/api?module=account&action=txlist&address=${accountAddress}&startblock=0&endblock=99999999&sort=asc&apikey=YourApiKeyToken`
  const res = await fetch(url)
  const json = await res.json()
  const txs = json.result
  const txHashes = txs.map((tx: any) => tx.hash)
  return txHashes
}

miguelmota

async function batchFetch (contract: Contract, filter: any, startBlockNumber: number, endBlockNumber: number, batchSize = 10000) {
  const logs: any[] = []
  let start = startBlockNumber
  let end = Math.min(start + batchSize, endBlockNumber)
  while (end <= endBlockNumber) {
    const _logs = await contract.queryFilter(
      filter,
      start,
      end
    )

miguelmota

pacman -S csview

miguelmota

'https://rpc.ankr.com/optimism',
'https://optimism.blockpi.network/v1/rpc/public',
'https://opt-mainnet.g.alchemy.com/v2/demo',
'https://optimism-mainnet.public.blastapi.io',
'https://api.zan.top/node/v1/opt/mainnet/public',
'https://optimism.publicnode.com',
'https://optimism.meowrpc.com',
'https://mainnet.optimism.io',
'https://rpc.optimism.gateway.fm',
'https://gateway.tenderly.co/public/optimism',

miguelmota

function removeOutliersByZScore(data: number[], threshold = 2) {
  const mean = data.reduce((acc, val) => acc + val, 0) / data.length
  const stdDev = Math.sqrt(data.reduce((acc, val) => acc + Math.pow(val - mean, 2), 0) / data.length)

  return data.filter((val) => Math.abs((val - mean) / stdDev) < threshold)
}

miguelmota

test -L /tmp/somefile && echo true || echo false

miguelmota

import cors from 'cors'
import express from 'express'

const app = express()
const port = process.env.PORT || 8000

app.enable('trust proxy')
app.use(cors())
app.use(express.json({ limit: '500kb' }))
app.use(express.urlencoded({ extended: false, limit: '500kb', parameterLimit: 50 }))

miguelmota

`prefix+[` to enter copy mode
navigate to the start or the end of text selection with arrow keys
press `control+space` to start selection
move to opposite end of text to copy with arrow keys
press `control+w` to copy selected text
in the same tmux session, paste with `prefix+]`, to paste into vim, paste with prefix+] in vim insert mode

miguelmota

ssh-add -D