当用户在我的 Web 应用上注册时，会生成一个 HD 钱包，并在 blockcypher API 上实例化一个 webhook，以监听未确认和单一确认的交易。当检测到未确认的交易时，从 blockcypher 网站向我的 express 应用程序上的路由发出事件，并通知用户他们的交易已收到。当交易有一个确认时，我正试图将钱从他们的钱包转移到一个主要的热钱包。但是，当我尝试广播原始 tx 时出现错误。
这是我的代码。这个错误是什么意思，我该如何解决。此外，如果有实现相同结果的替代方法。会很乐意听到/尝试一下。
这是侦听和签署交易的代码。
// UNCONFIRMED TRANSACTION
api.post('/callbacks/new-tx', async function(req, res) {
console.log('POST: Callback received from blockcypher');
console.log(req.body);
fs.appendFile('Deposits.txt', 'Unconfirmed Deposit\n' + JSON.stringify(req.body) + '\n');
// FIND OWNER OF ADDRESS
User.findOne({'keyPairs.address': req.body.addresses[0]}, function(err, user) {
// UPDATE BALANCE OF USER
// user.balance += req.body.outputs[0].value;
// CREATE TRANSACTION MODEL OF EVENT (RECORD OF TRANSACTION TO DB)
var transaction = new Transaction({
to: req.body.addresses[0],
from: req.body.addresses[1],
change: req.body.addresses[2],
amount: req.body.outputs[0].value,
time: moment().format('MMMM Do YYYY, h:mm:ss a'),
});
transaction.save((err) => {
// HANDLE ERROR
if (err) {return 'rest in pieces'}
io.emit('notify', {
user_id: user._id,
title: 'Deposit Received',
message: 'We\'ve recieved your deposit of ' + req.body.outputs.value + 'BTC. Your balance will be updated after 1 confirmation.',
color: 'success',
})
})
});
// RESPOND TO API
res.status(200).send('ok');
});
// 1 CONFIRMATION
api.post('/callbacks/confirmed', async function(req, res) {
console.log('confirmed blockcypher api');
console.log(req.body);
fs.appendFile('Deposits.txt', 'Confirmed Deposit\n' + JSON.stringify(req.body) + '\n');
// NEED TO CHECK STRUCTURE OF CALLBACK RESPONSE
let webhook_id;
let address = req.body.addresses[1];
User.findOne({'keyPairs.address' : address}, async function(err, user) {
var keypair = await WalletService.createKeyPair(user.accountIndex);
user.btc_address = keypair.address;
user.btc_s = keypair.secret;
// SEND COINS TO MAIN WALLET
async function send() {
let max;
let main_wallet = config.master_address;
let transaction = new bitcore.Transaction();
WalletService.getAddressUtxo(address).then(utxo => {
for(let i=0; i<utxo.length; i++) {
transaction.from(utxo[i])
}
// set full wallet balance
WalletService.getAddressBalance(address)
.then(balance => {
max = balance.final_balance;
transaction.to(main_wallet, max);
transaction.change(keypair.address);
let priv_key = new Promise((resolve, reject) => {
user.keyPairs.forEach(kp => {
if (kp.address == address) {
resolve(kp);
}
})
})
priv_key.then(kp => {
axios.get('https://bitcoinfees.earn.com/api/v1/fees/recommended')
.then(fee => {
var f = fee.data;
var finalFee = (transaction.toString().length / 2) * f.hourFee;
transaction.to(main_wallet, max-finalFee);
transaction.fee(finalFee);
transaction.sign(kp.secret);
// EMIT TRANSACTION!!!!!!!!!
axios.post('https://api.blockcypher.com/v1/btc/test3/txs/push', JSON.stringify({
tx: transaction.toString(),
})).then(res => {
console.log('Transaction Successfully Sent');
console.log('Response: ');
console.log(res.data);
})
/*
NOTICE!
Remember that when a user deposits to their HD wallet, they pay fee to send.
Once balance is confirmed, we need to move money to our main wallet.
Moving this money will incur another fee. So add the full amount to users
balance and send the amount MINUS the fee to our big daddy wallet.
*/
// on success
user.balance += bitcore.Unit.fromSatoshis(max).toMilis();
io.emit('increase-balance', {
id: user._id,
amount: bitcore.Unit.fromSatoshis(max).toMilis(),
});
io.emit('notify', {
user_id: user._id,
color: 'success',
message: 'Deposit has been confirmed. Your balance has been updated'
});
// ======================================
})
})
})
})
} await send();
// ========================
user.save((err) => {
console.log('new keypair generated and saved for' + user.username);
// unconfirmed hook
var unconfirmed_hook = {
"event": "unconfirmed-tx",
"address": address,
"url": config.callback_address + "/new-tx"
}
// confirmed hook
var confirmed_hook = {
"event": "confirmed-tx",
"address": address,
"url": config.callback_address + "/confirmed"
}
// delete old webhook
axios({
method: 'DELETE',
url: 'https://api.blockcypher.com/v1/btc/test3/hooks/' + webhook_id,
});
// create new webhooks
// create unconfirmed_hook
axios({
method: 'POST',
url: 'https://api.blockcypher.com/v1/btc/test3/hooks?token=' + config.blockcypher_token,
data: JSON.stringify(unconfirmed_hook)
}).then(res => {
console.log('*NEW* Webhook Unconfirmed Webhook Created')
})
axios({
method: 'POST',
url: 'https://api.blockcypher.com/v1/btc/test3/hooks?token=' + config.blockcypher_token,
data: JSON.stringify(confirmed_hook),
}).then(res => {
console.log('*NEW* Webhook Confirmed Webhook Created')
})
});
});
});
请帮忙。谢谢。