nisiquas/src/bitcoin.js

transaction-hex-decoder - Decode Transactions given their HEX

const bitcoin = require('bitcoinjs-lib');

module.exports = function (hex) {
    const tx = bitcoin.Transaction.fromHex(hex);
    let totalValue = 0;
    if (tx && tx.outs && tx.outs.length > 0) {
        totalValue = tx.outs.map(out => out.value).reduce((a, b) => {
            a + b;
        });
        tx.totalValue = totalValue;    
    }
    return tx;
}