Signing Transactions with Different Payer Address: Handling Dual Signature Requirements in OntAssetTxBuilder

[sinanouri]

How should I sign the transaction if I specify a different payer address than the sender address in the following code snippet?

const tx = OntAssetTxBuilder.makeTransferTx(assetType, from, to, amount, gasPrice, gasLimit, payer);
TransactionBuilder.signTransaction(tx, from_privateKey)

Do I need to sign the transaction twice, first with the sender's private key and then with the fee payer's private key?

const tx = OntAssetTxBuilder.makeTransferTx(assetType, from, to, amount, gasPrice, gasLimit, payer);
TransactionBuilder.signTransaction(tx, from_privateKey)
TransactionBuilder.signTransaction(tx, payer_privateKey)

[sinanouri]

Actually, I found the solution while I was playing with the library. The code should be like this:

const tx = OntAssetTxBuilder.makeTransferTx(assetType, from, to, amount, gasPrice, gasLimit, payer);
TransactionBuilder.signTransaction(tx, from_privateKey);
TransactionBuilder.addSign(tx, payer_privateKey);