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floBlockchainAPI v2.3.2a

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sendTx:
- check total balance before processing utxos
- reject "Insufficient FLO: Some UTXOs are unconfirmed" when balance is there but some utxo are used/unconfimed
This commit is contained in:
sairajzero 2022-05-21 22:19:54 +05:30
parent 8603cde17e
commit 5d7d3bdb53
2 changed files with 47 additions and 44 deletions
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90
floBlockchainAPI.js
View File

@ -1,4 +1,4 @@
(function(EXPORTS) { //floBlockchainAPI v2.3.2
(function(EXPORTS) { //floBlockchainAPI v2.3.2a
/* FLO Blockchain Operator to send/receive data from blockchain using API calls*/
'use strict';
const floBlockchainAPI = EXPORTS;
@ -125,48 +125,52 @@
else if (typeof sendAmt !== 'number' || sendAmt <= 0)
return reject(`Invalid sendAmt : ${sendAmt}`);
//get unconfirmed tx list
promisedAPI(`api/addr/${senderAddr}`).then(result => {
readTxs(senderAddr, 0, result.unconfirmedTxApperances).then(result => {
let unconfirmedSpent = {};
for (let tx of result.items)
if (tx.confirmations == 0)
for (let vin of tx.vin)
if (vin.addr === senderAddr) {
if (Array.isArray(unconfirmedSpent[vin.txid]))
unconfirmedSpent[vin.txid].push(vin.vout);
else
unconfirmedSpent[vin.txid] = [vin.vout];
}
//get utxos list
promisedAPI(`api/addr/${senderAddr}/utxo`).then(utxos => {
//form/construct the transaction data
var trx = bitjs.transaction();
var utxoAmt = 0.0;
var fee = DEFAULT.fee;
for (var i = utxos.length - 1;
(i >= 0) && (utxoAmt < sendAmt + fee); i--) {
//use only utxos with confirmations (strict_utxo mode)
if (utxos[i].confirmations || !strict_utxo) {
if (utxos[i].txid in unconfirmedSpent && unconfirmedSpent[utxos[i].txid].includes(utxos[i].vout))
continue; //A transaction has already used the utxo, but is unconfirmed.
trx.addinput(utxos[i].txid, utxos[i].vout, utxos[i].scriptPubKey);
utxoAmt += utxos[i].amount;
};
}
if (utxoAmt < sendAmt + fee)
reject("Insufficient FLO balance!");
else {
trx.addoutput(receiverAddr, sendAmt);
var change = utxoAmt - sendAmt - fee;
if (change > 0)
trx.addoutput(senderAddr, change);
trx.addflodata(floData.replace(/\n/g, ' '));
var signedTxHash = trx.sign(privKey, 1);
broadcastTx(signedTxHash)
.then(txid => resolve(txid))
.catch(error => reject(error))
}
getBalance(senderAddr).then(balance => {
var fee = DEFAULT.fee;
if (balance < sendAmt + fee)
return reject("Insufficient FLO balance!");
//get unconfirmed tx list
promisedAPI(`api/addr/${senderAddr}`).then(result => {
readTxs(senderAddr, 0, result.unconfirmedTxApperances).then(result => {
let unconfirmedSpent = {};
for (let tx of result.items)
if (tx.confirmations == 0)
for (let vin of tx.vin)
if (vin.addr === senderAddr) {
if (Array.isArray(unconfirmedSpent[vin.txid]))
unconfirmedSpent[vin.txid].push(vin.vout);
else
unconfirmedSpent[vin.txid] = [vin.vout];
}
//get utxos list
promisedAPI(`api/addr/${senderAddr}/utxo`).then(utxos => {
//form/construct the transaction data
var trx = bitjs.transaction();
var utxoAmt = 0.0;
for (var i = utxos.length - 1;
(i >= 0) && (utxoAmt < sendAmt + fee); i--) {
//use only utxos with confirmations (strict_utxo mode)
if (utxos[i].confirmations || !strict_utxo) {
if (utxos[i].txid in unconfirmedSpent && unconfirmedSpent[utxos[i].txid].includes(utxos[i].vout))
continue; //A transaction has already used the utxo, but is unconfirmed.
trx.addinput(utxos[i].txid, utxos[i].vout, utxos[i].scriptPubKey);
utxoAmt += utxos[i].amount;
};
}
if (utxoAmt < sendAmt + fee)
reject("Insufficient FLO: Some UTXOs are unconfirmed");
else {
trx.addoutput(receiverAddr, sendAmt);
var change = utxoAmt - sendAmt - fee;
if (change > 0)
trx.addoutput(senderAddr, change);
trx.addflodata(floData.replace(/\n/g, ' '));
var signedTxHash = trx.sign(privKey, 1);
broadcastTx(signedTxHash)
.then(txid => resolve(txid))
.catch(error => reject(error))
}
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))

1
index.html
View File

@ -8,7 +8,6 @@
const floGlobals = {
blockchain: "FLO",
adminID: "FKAEdnPfjXLHSYwrXQu377ugN4tXU7VGdf",
fee: 0.01,
application: "TEST_MODE",
}
</script>