Error in signature check wallet

Searchers
1

Hello Flashbots community. Im trying to send my first bundle to flashbots relay. Im getting this error message here when trying to send it.

error in signature check (my wallet address)

I guess something is wrong with how Ive set up the signature. I would appreciate any help! Here is my code

async function sendAsyncTransaction() {
try {
const pending = await provider.getTransactionCount(signer.address, “pending”);

    const exampleTx = {
        to: "0x0C7172c8c5C000F39E2A11b04c52805aF29d945b",
        value: 1,
        gasLimit: "21000",
        maxFeePerGas: 50000000000,
        nonce: pending,
        type: 2,
        chainId: 1,
    };

    // sign tx
    const txs = await signer.signTransaction(exampleTx);

    // get current block
    const blockNumber = '0x' + (await provider.getBlockNumber() + 1).toString(16);

    const data = {
        jsonrpc: '2.0',
        id: '1',
        method: 'eth_sendBundle',
        params: [{txs, blockNumber}],
    };

    const signature = signer.address + ":" + await signer.signMessage(utils.id(data));

    const config = {
        headers: {
            'Content-Type': 'application/json',
            'X-Flashbots-Signature': `${signature}`, // Add your Flashbots signature here
        },
    };

    axios.post('https://relay.flashbots.net', data, config)
        .then((response: { data: any; }) => {
            console.log(response.data);
        })
        .catch((error: any) => {
            console.error(error);
        });

} catch (error) {
    console.error(error);
}

}

Thanks in advance!

1 Like
2

Issue solved!

1 Like
3

How did you solve it?:slight_smile:

4

Hi @cguth, would you mind to share how you solved it? I am also having the same issue. Thanks!