InteractWithPaymasterExample.ts

// An example that removes spending permissions of hacker controlled addresses on erc20 tokens using the paymaster
// 
import { Provider, types, Wallet, utils } from "zksync-ethers";
import { ethers } from "ethers";

const PRIVATE_KEY = "0000000000000000000000000000000000000000000000000000000000000000"
const paymasterAddress = "0x0000000000000000000000000000000000000000"; // Paymaster
const walletAddresses = [
  '0x0000000000000000000000000000000000000000',
  '0x0000000000000000000000000000000000000000',
  '0x0000000000000000000000000000000000000000',
  '0x0000000000000000000000000000000000000000',
  '0x0000000000000000000000000000000000000000',
]


const rpcUrl = "<YOUR_RPC_URL>"

const token = new ethers.Interface(require("./Token.json").abi) // erc 20 interface, can use abi 

//const provider = Provider.getDefaultProvider(types.Network.Sepolia); // Sepolia test
const provider = new Provider(rpcUrl);
const ethProvider = ethers.getDefaultProvider("mainnet");
const wallet = new Wallet(PRIVATE_KEY, provider, ethProvider);

const tokenAddress = "0x0000000000000000000000000000000000000000" // ERC20 Token to remove spending allowance from


async function removeSpending() {
   for (const address of walletAddresses){
      try {
         const setAllowance = await wallet.sendTransaction({
            type: utils.EIP712_TX_TYPE,  // Tx type required to use paymaster
            to: tokenAddress,
            data: token.encodeFunctionData("approve", [address, 0]),
            customData: {
               gasPerPubdata: utils.DEFAULT_GAS_PER_PUBDATA_LIMIT,
               paymasterParams: utils.getPaymasterParams(paymasterAddress, {
                     type: "General",
                     innerInput: new Uint8Array(),
               }),
            }
         })
         const receipt = await setAllowance.wait()
         console.log(`${receipt} : ${address} kicked out`)
      } catch (err){
         console.log("error ", err)
      }
   }
   }


async function main() {
   await removeSpending();
}

main()
    .then()
    .catch((error) => {
        console.log(`Error: ${error}`);
    });