using prime vault for raw signing, then submitting on aptos

[aanchal-webmob]

Discord user ID

No response

Describe your question in detail.

hey can anyone help me with submitting the txn if i am doing raw signing from prime vault. ?
Actually i generated the txn using generateTransaction(), then get it rawsigned from prime vault , they sent a txnSignature , now i am stuck on how shall i further use it to call aptos.submitTransaction().

What error, if any, are you getting?

const payload = {
    type: "entry_function_payload",
    function: `${THALA_V2__RESOURCE_ADDRESS}::coin_wrapper::swap_exact_in_weighted`,
    type_arguments: [inMetaData.typeArgument],
    arguments: [
      poolAddress,
      inMetaData.assetMetadata,
      inAmount.toString(),
      outMetaData.assetMetadata,
      minDesiredAmt,
    ],
  };

  const rawTx = await client.generateTransaction(
    address,
    payload
  );

  const serializer = new BCS.Serializer();
  rawTx.serialize(serializer);
  const serializedTx = serializer.getBytes();

  const hash = crypto.createHash("sha3-256").update(serializedTx).digest();
  const messageHex = hash.toString("hex");
  const rawSignedTxn = await apiClient.createContractCallTransaction({
    vaultId: vault id,
    chain: "APTOS",
  ,
    data: { messageHex },
  });

  while (true) {
    let rawSignedtxnResponse = await apiClient.getTransactionById(rawSignedTxn.id);
    console.log("rawSignedtxnResponse", rawSignedtxnResponse);
    if (
      [TransactionStatus.COMPLETED, TransactionStatus.FAILED].includes(
        rawSignedtxnResponse.status
      )
    ) {
      if (rawSignedtxnResponse.status === TransactionStatus.COMPLETED) {
        if (!rawSignedtxnResponse.txnSignature) {
          throw new Error(
            "Transaction signature missing in PrimeVault response"
          );
        }
        const publicKey = Buffer.from(
          address,
          "hex"
        );

        const signature = Buffer.from(rawSignedtxnResponse.txnSignature, "hex");

        const authenticator =
          new TxnBuilderTypes.TransactionAuthenticatorEd25519(
            new TxnBuilderTypes.Ed25519PublicKey(publicKey),
            new TxnBuilderTypes.Ed25519Signature(signature)
          );

        const signedTransaction = new TxnBuilderTypes.SignedTransaction(
          rawTx,
          authenticator
        );
      
        const serializer = new BCS.Serializer();
        signedTransaction.serialize(serializer);
        const serializedTx = serializer.getBytes();
       

        const txnHash = await client.submitTransaction(serializedTx);
        console.log("txn hash-", txnHash);

i tried like this but I got error INVALID SIGNATURE while submitting

What have you tried or looked at? Or how can we reproduce the error?

No response

Which operating system are you using?

macOS

Which SDK or tool are you using? (if any)

TypeScript SDK

Describe your environment or tooling in detail

used aptos lbraray and prime vault ts sdk

[0x-j]

what does prime vault mean?

[aanchal-webmob]

its a crypto wallet.

[0x-j]

smart contract wallet?