floBlockchainAPI v2.4.6
Improved utxo and unconfirmed-spent api fetch in send/create tx
This commit is contained in:
sairajzero
parent
9c0730e051
commit
ca0d8c68f3
@ -1,4 +1,4 @@
|
||||
(function (EXPORTS) { //floBlockchainAPI v2.4.5
|
||||
(function (EXPORTS) { //floBlockchainAPI v2.4.6
|
||||
/* FLO Blockchain Operator to send/receive data from blockchain using API calls*/
|
||||
'use strict';
|
||||
const floBlockchainAPI = EXPORTS;
|
||||
@ -139,6 +139,28 @@
|
||||
});
|
||||
}
|
||||
|
||||
const getUTXOs = address => new Promise((resolve, reject) => {
|
||||
promisedAPI(`api/addr/${address}/utxo`)
|
||||
.then(utxo => resolve(utxo))
|
||||
.catch(error => reject(error))
|
||||
})
|
||||
|
||||
const getUnconfirmedSpent = address => new Promise((resolve, reject) => {
|
||||
readTxs(address, { mempool: "only" }).then(result => {
|
||||
let unconfirmedSpent = {};
|
||||
for (let tx of result.items)
|
||||
if (tx.confirmations == 0)
|
||||
for (let vin of tx.vin)
|
||||
if (vin.addr === address) {
|
||||
if (Array.isArray(unconfirmedSpent[vin.txid]))
|
||||
unconfirmedSpent[vin.txid].push(vin.vout);
|
||||
else
|
||||
unconfirmedSpent[vin.txid] = [vin.vout];
|
||||
}
|
||||
resolve(unconfirmedSpent);
|
||||
}).catch(error => reject(error))
|
||||
})
|
||||
|
||||
//create a transaction with single sender
|
||||
const createTx = function (senderAddr, receiverAddr, sendAmt, floData = '', strict_utxo = true) {
|
||||
return new Promise((resolve, reject) => {
|
||||
@ -155,45 +177,31 @@
|
||||
var fee = DEFAULT.fee;
|
||||
if (balance < sendAmt + fee)
|
||||
return reject("Insufficient FLO balance!");
|
||||
//get unconfirmed tx list
|
||||
promisedAPI(`api/addr/${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 > DEFAULT.minChangeAmt)
|
||||
trx.addoutput(senderAddr, change);
|
||||
trx.addflodata(floData.replace(/\n/g, ' '));
|
||||
resolve(trx);
|
||||
}
|
||||
}).catch(error => reject(error))
|
||||
getUnconfirmedSpent(senderAddr).then(unconfirmedSpent => {
|
||||
getUTXOs(senderAddr).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 > DEFAULT.minChangeAmt)
|
||||
trx.addoutput(senderAddr, change);
|
||||
trx.addflodata(floData.replace(/\n/g, ' '));
|
||||
resolve(trx);
|
||||
}
|
||||
}).catch(error => reject(error))
|
||||
}).catch(error => reject(error))
|
||||
}).catch(error => reject(error))
|
||||
@ -249,7 +257,7 @@
|
||||
var trx = bitjs.transaction();
|
||||
var utxoAmt = 0.0;
|
||||
var fee = DEFAULT.fee;
|
||||
promisedAPI(`api/addr/${floID}/utxo`).then(utxos => {
|
||||
getUTXOs(floID).then(utxos => {
|
||||
for (var i = utxos.length - 1; i >= 0; i--)
|
||||
if (utxos[i].confirmations) {
|
||||
trx.addinput(utxos[i].txid, utxos[i].vout, utxos[i].scriptPubKey);
|
||||
@ -416,7 +424,7 @@
|
||||
//Get the UTXOs of the senders
|
||||
let promises = [];
|
||||
for (let floID in senders)
|
||||
promises.push(promisedAPI(`api/addr/${floID}/utxo`));
|
||||
promises.push(getUTXOs(floID));
|
||||
Promise.all(promises).then(results => {
|
||||
var trx = bitjs.transaction();
|
||||
for (let floID in senders) {
|
||||
@ -490,46 +498,32 @@
|
||||
var fee = DEFAULT.fee;
|
||||
if (balance < sendAmt + fee)
|
||||
return reject("Insufficient FLO balance!");
|
||||
//get unconfirmed tx list
|
||||
promisedAPI(`api/addr/${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, redeemScript); //for multisig, script=redeemScript
|
||||
utxoAmt += utxos[i].amount;
|
||||
};
|
||||
}
|
||||
if (utxoAmt < sendAmt + fee)
|
||||
reject("Insufficient FLO: Some UTXOs are unconfirmed");
|
||||
else {
|
||||
for (let i in receivers)
|
||||
trx.addoutput(receivers[i], amounts[i]);
|
||||
var change = utxoAmt - sendAmt - fee;
|
||||
if (change > DEFAULT.minChangeAmt)
|
||||
trx.addoutput(senderAddr, change);
|
||||
trx.addflodata(floData.replace(/\n/g, ' '));
|
||||
resolve(trx);
|
||||
}
|
||||
}).catch(error => reject(error))
|
||||
getUnconfirmedSpent(senderAddr).then(unconfirmedSpent => {
|
||||
getUTXOs(senderAddr).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, redeemScript); //for multisig, script=redeemScript
|
||||
utxoAmt += utxos[i].amount;
|
||||
};
|
||||
}
|
||||
if (utxoAmt < sendAmt + fee)
|
||||
reject("Insufficient FLO: Some UTXOs are unconfirmed");
|
||||
else {
|
||||
for (let i in receivers)
|
||||
trx.addoutput(receivers[i], amounts[i]);
|
||||
var change = utxoAmt - sendAmt - fee;
|
||||
if (change > DEFAULT.minChangeAmt)
|
||||
trx.addoutput(senderAddr, change);
|
||||
trx.addflodata(floData.replace(/\n/g, ' '));
|
||||
resolve(trx);
|
||||
}
|
||||
}).catch(error => reject(error))
|
||||
}).catch(error => reject(error))
|
||||
}).catch(error => reject(error))
|
||||
@ -668,7 +662,7 @@
|
||||
}
|
||||
|
||||
const getTxOutput = (txid, i) => new Promise((resolve, reject) => {
|
||||
fetch_api(`api/tx/${txid}`)
|
||||
promisedAPI(`api/tx/${txid}`)
|
||||
.then(result => resolve(result.vout[i]))
|
||||
.catch(error => reject(error))
|
||||
});
|
||||
|
||||
Loading…
Reference in New Issue
Block a user