How Can I sign transaction from two or more account to a recipient

[OTopman]

trafficstars

Please how can I handle a situation where I have bitcoin on two or more different wallets with a single phrase, how can I sign the two transactions to a friend.

Example: I have 2BTC in a wallet address that is at path m/44'/0'/0'/0'/0 I also have 1BTC in another wallet address that is at path m/44'/0'/0'/0'/1

How can I sign the 3BTC to a friend.

Thanks!

[motorina0]

Using the PSBT class you can sign each input individually. Have a look at the PSBT examples.

Before signing you must derive the two key-pairs from their respective master key.

[OTopman]

@motorina0

Alright, Thanks a million.

Something like this 👇

`const bitcoin = require('bitcoinjs-lib'); const privateKey1 = 'private_key1'; // replace with your private key for address 1 const privateKey2 = 'private_key2'; // replace with your private key for address 2 const addressTo = 'recipient_address'; // replace with the recipient's BTC address

// Create a transaction builder const txb = new bitcoin.TransactionBuilder();

// Add inputs from the two addresses txb.addInput('txid1', 0); // replace with the transaction ID and output index for address 1 txb.addInput('txid2', 1); // replace with the transaction ID and output index for address 2

// Add the output to the recipient's address txb.addOutput(addressTo, 5000); // replace with the amount of BTC you want to send

// Sign the inputs with the private keys const keyPair1 = bitcoin.ECPair.fromPrivateKey(Buffer.from(privateKey1, 'hex')); txb.sign(0, keyPair1); // sign the first input const keyPair2 = bitcoin.ECPair.fromPrivateKey(Buffer.from(privateKey2, 'hex')); txb.sign(1, keyPair2); // sign the second input

// Build the transaction const tx = txb.build();

// Print the transaction in hex format console.log(tx.toHex());`

[motorina0]

• TransactionBuilder class has been removed some time ago.
• you should use the PSBT class. That is the standard way to build & share transactions

[OTopman]

Alright 👍