Created
July 18, 2022 08:08
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Flashbots Rescue Tokens
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import { ethers, providers, Wallet, utils, Transaction } from "ethers"; | |
import { | |
FlashbotsBundleProvider, | |
FlashbotsBundleResolution, | |
} from "@flashbots/ethers-provider-bundle"; | |
import { exit } from "process"; | |
const FLASHBOTS_URL = "https://relay-goerli.flashbots.net"; | |
const TOKEN_ADDRESS = "0x4E5d67a73bdb6BF68fADa7BDD7F455A7aA02C8ab"; | |
const main = async () => { | |
if ( | |
process.env.SPONSOR_KEY === undefined || | |
process.env.VICTIM_KEY === undefined | |
) { | |
console.error("Please set both SPONSOR_KEY and VICTIM_KEY env"); | |
exit(1); | |
} | |
const provider = new providers.JsonRpcProvider( | |
"https://rpc.goerli.mudit.blog/" | |
); | |
const authSigner = Wallet.createRandom(); | |
const flashbotsProvider = await FlashbotsBundleProvider.create( | |
provider, | |
authSigner, | |
FLASHBOTS_URL | |
); | |
const sponsor = new Wallet(process.env.SPONSOR_KEY).connect(provider); | |
const victim = new Wallet(process.env.VICTIM_KEY).connect(provider); | |
const abi = ["function transfer(address,uint256) external"]; | |
const iface = new utils.Interface(abi); | |
provider.on("block", async (blockNumber) => { | |
console.log(blockNumber); | |
const targetBlockNumber = blockNumber + 1; | |
const resp = await flashbotsProvider.sendBundle( | |
[ | |
{ | |
signer: sponsor, | |
transaction: { | |
chainId: 5, | |
type: 2, | |
to: victim.address, | |
value: utils.parseEther("0.01"), | |
maxFeePerGas: utils.parseUnits("3", "gwei"), | |
maxPriorityFeePerGas: utils.parseUnits("2", "gwei"), | |
}, | |
}, | |
{ | |
signer: victim, | |
transaction: { | |
chainId: 5, | |
type: 2, | |
to: TOKEN_ADDRESS, | |
gasLimit: "50000", | |
data: iface.encodeFunctionData("transfer", [ | |
sponsor.address, | |
utils.parseEther("1000000"), | |
]), | |
maxFeePerGas: utils.parseUnits("3", "gwei"), | |
maxPriorityFeePerGas: utils.parseUnits("2", "gwei"), | |
}, | |
}, | |
], | |
targetBlockNumber | |
); | |
if ("error" in resp) { | |
console.log(resp.error.message); | |
return; | |
} | |
const resolution = await resp.wait(); | |
if (resolution === FlashbotsBundleResolution.BundleIncluded) { | |
console.log(`Congrats, included in ${targetBlockNumber}`); | |
exit(0); | |
} else if ( | |
resolution === FlashbotsBundleResolution.BlockPassedWithoutInclusion | |
) { | |
console.log(`Not included in ${targetBlockNumber}`); | |
} else if (resolution === FlashbotsBundleResolution.AccountNonceTooHigh) { | |
console.log("Nonce too high, bailing"); | |
exit(1); | |
} | |
}); | |
}; | |
main(); |
I have done my research, i am aware that i have lost what is gone, was just trying to save what is there and what could be there if i claim something. Other than Gas does this cost much? i am handy and can probably figure out how to build it with instructions. are they free?
If you are trying to do this and is not working cause of dot .env
- add .env file in your root directory
- install dotenv by running "npm install dotenv" in your terminal
-Try running the program again
You can also reach out to me on github, incase you need assistance.
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If you already lost funds it cant be recovered you can only save whats left in the wallet well you can use the flashbot bundle transactions to claim and move