Solana transaction , unknown signer

Question

I am trying to buy NFT from Magic Eden Solana with node js/typescript script,

at first I used solana CLI to get the keypair by using the command below

cat .../.config/solana/id.json

typescript :

let Array_key = [98, 90, 131, ...]; ```got it using solana cli from .../.config/solana/id.json```
let secret = Uint8Array.from(Array_key)
let signers = Keypair.fromSecretKey(Uint8Array.from(secrete))

const connection = new Connection("https://api.mainnet-beta.solana.com",'confirmed');
let publickey = new PublicKey("2Eod3hjZBJZzGYSJVrVtRC3UMZeonZYfUScmAy1tjD5c");```Wallet address```


let allocateTransaction = new Transaction({
                  feePayer: publickey,
                });
    
const databuf = Buffer.from(parsed_buy_response['tx']['data'], "hex");```from https://api-mainnet.magiceden.io/v2/instructions/buy_now```

const keys: AccountMeta[] = await generateAccountList(MintAddress,publickey, connection);```function used from transaction.ts https://github.com/solanasoulja/sol-nft-sniper/blob/main/src/views/HomeView/transaction.ts```

allocateTransaction.add(new TransactionInstruction({
              keys: keys,
              programId: publickey,
              data: databuf,
            }));

await sendAndConfirmTransaction(connection, allocateTransaction, [signers]).then(resolve => {
        console.log('transaction sent')
        console.log(resolve)
      }).catch(err => {
        console.log('err at sending transaction')
        console.log(err)
      })

and the output is Error: unknown signer xxxxxxxxxxxxxxx, noting that my wallet address is different than the signer, I don't know why I am getting a different signer.

I tried different method by generating the keypair using bip39 method as shown below:

async getKeyPair(mnemomic) {
    const seed = bip39.mnemonicToSeedSync(mnemomic).slice(0, 32);
    console.log(seed)
    // let _KeyPairseed = await web3.PublicKey.createWithSeed(publicKey, seed, publicKey)
    // console.log(_KeyPairseed)
    const keypair = Keypair.fromSeed(seed);
    console.log(keypair)
    return keypair;
};

I get different error => verification error

not sure if I am missing a step.

score 0 · Answer 1 · answered Dec 27 '22 at 14:47

0

If someone else is going through this problem, here is the answer. Make sure the wallet is written Anchor.toml and this same wallet should match the wallet in your test file.

answered Dec 27 '22 at 14:47

Yash Sharma

1

1

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Dec 28 '22 at 11:35

Solana transaction , unknown signer

1 Answers1