BITBLOG

// create 256 bit BIP39 mnemonic
let mnemonic = BITBOX.Mnemonic.generate(256)

// root seed buffer
let rootSeed = BITBOX.Mnemonic.toSeed(mnemonic);

// master HDNode
let masterHDNode = BITBOX.HDNode.fromSeed(rootSeed, 'bitcoincash');

// HDNode of BIP44 account
let account = BITBOX.HDNode.derivePath(masterHDNode, "m/44'/145'/0'");

// derive the first external change address HDNode which is going to spend utxo
let change = BITBOX.HDNode.derivePath(account, "0/0");

// instance of transaction builder
let transactionBuilder = new BITBOX.TransactionBuilder();
// original amount of satoshis in vin
let originalAmount = result[0].satoshis;

// index of vout
let vout = result[0].vout;

// txid of vout
let txid = result[0].txid;

// add input with txid and index of vout
transactionBuilder.addInput(txid, vout);

// get byte count to calculate fee. paying 1 sat/byte
let byteCount = BITBOX.BitcoinCash.getByteCount({ P2PKH: 1 }, { P2PKH: 1 });
// 192
// amount to send to receiver. It's the original amount - 1 sat/byte for tx size
let sendAmount = originalAmount - byteCount;

// add output w/ address and amount to send
transactionBuilder.addOutput(cashAddress, sendAmount);
// keypair
let keyPair = BITBOX.HDNode.toKeyPair(change);

// sign w/ HDNode
let redeemScript;
transactionBuilder.sign(0, keyPair, redeemScript, transactionBuilder.hashTypes.SIGHASH_ALL, originalAmount);

// build tx
let tx = transactionBuilder.build();

// output rawhex
let hex = tx.toHex();

// sendRawTransaction to running BCH node
BITBOX.RawTransactions.sendRawTransaction(hex).then((result) => {
  console.log(result);
}, (err) => {
  console.log(err);
});