todo

Bitstamp needs proxy

Twitter parsing without API, because free plan doesn't work (https://github.com/3asyPe/twitter-automation, Snscrape) and parse new from exchanges

New pairs on Raydium https://github.com/patrulek/rayscan

Use bitquery api https://docs.bitquery.io/docs/usecases/discord-bot/

Defillama и dexscreener - new pairs

Raydium and pump.fun

If there is no symbol by contract check information in coingecko

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Calculate commission:
import { ethers } from "ethers";

async function transactionCost(priorityFeeInGwei: number): Promise<string> {
  try {
    const gasLimit = 21000;

    const provider = new ethers.providers.Web3Provider(window.ethereum);

    const feeData = await provider.getFeeData();

    if (!feeData.lastBaseFeePerGas) {
      throw new Error("Base Fee is not available.");
    }

    const priorityFeeInWei = ethers.utils.parseUnits(priorityFeeInGwei.toString(), "gwei");

    const totalGasPrice = feeData.lastBaseFeePerGas.add(priorityFeeInWei); // BigNumber
    const transactionFeeInWei = totalGasPrice.mul(gasLimit); // BigNumber

    return ethers.utils.formatEther(transactionFeeInWei);
  } catch (error) {
    console.error(error);
    throw error;
  }
}

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chainlink:
from web3 import Web3

CHAINLINK_ABI = [
    {
        "inputs": [],
        "name": "latestRoundData",
        "outputs": [
            {"internalType": "uint80", "name": "roundId", "type": "uint80"},
            {"internalType": "int256", "name": "answer", "type": "int256"},
            {"internalType": "uint256", "name": "startedAt", "type": "uint256"},
            {"internalType": "uint256", "name": "updatedAt", "type": "uint256"},
            {"internalType": "uint80", "name": "answeredInRound", "type": "uint80"},
        ],
        "stateMutability": "view",
        "type": "function",
    }
]

def get_eth_price(rpc_url: str, contract_address: str) -> float:
    try:
        w3 = Web3(Web3.HTTPProvider(rpc_url))
        if not w3.isConnected():
            raise ConnectionError("")

        contract = w3.eth.contract(address=Web3.toChecksumAddress(contract_address), abi=CHAINLINK_ABI)

        latest_data = contract.functions.latestRoundData().call()
        price = latest_data[1]

        return float(price) / 10**8
    except Exception as e:
        print(e)
        return None

https://docs.chain.link/data-feeds/price-feeds/addresses?network=ethereum&page=1