I'm trying to detect deposits that user will made. I explained it with comment lines in below.
Can you say are there any flaw in it?
var _ = require('underscore')
var check = function(client, site) {
// check last 10 transactions
bitcoin_client.cmd('listtransactions', '*', 10, function(e, transactions) {
if (!transactions) return;
var TRANSACTION = transactions.transactions;
for (var i = 0; i < TRANSACTION.length; i++) {
depositDetector(i)()
};
function depositDetector(i) {
return function() {
//check if it's received
if (TRANSACTION[i].category == "receive" && TRANSACTION[i].amount >= 0.00000100) {
var txid = TRANSACTION[i].txid
var address = TRANSACTION[i].address
var amount = TRANSACTION[i].amount
var confs = TRANSACTION[i].confirmations
// find it in deposits database
deposit.find({
'txid': txid
}).exec(function(e, _deposit) {
// if there is deposit with that txid's
//save their confirmations
if (_deposit.length > 0) {
_.each(_deposit, function(a) {
a.confs = confs;
a.save() //confirmations updated
})
} else { // the txid is new, find user with it's address
//and update user with that transaction amount.
user.findOneAndUpdate({
'btc_address': address
}, {
$inc: {
'btc_balance': amount
}
}).exec(function(e, _user) {
// !e && save deposit to database / finished
}
})
}
})
}
}
}
})
}
