+
Receiver
-
-
+
+
Fee
@@ -193,15 +198,23 @@
.catch(error => console.error(error))
.finally(_ => sendForm['check-balance'].disabled = false)
}
+ let receiver_template = sendForm.getElementsByClassName('receiver-template')[0],
+ receiver_container = sendForm.getElementsByClassName('receiver-container')[0];
+ sendForm['add-receiver'].onclick = evt => {
+ receiver_container.appendChild(receiver_template.content.cloneNode(true));
+ let clone = receiver_container.lastElementChild;
+ clone.getElementsByTagName("button")[0].onclick = evt => receiver_container.removeChild(clone);
+ };
+ sendForm['add-receiver'].click();
sendForm['submit'].onclick = evt => {
let sender = sendForm["sender"].value,
- receiver = sendForm["receiver"].value,
- amount = parseFloat(sendForm["amount"].value),
+ receivers = {},
fee = parseFloat(sendForm["fee"].value);
- console.debug(sender, receiver, amount, fee)
+ for (let i = 0; i < sendForm["receiver"].length; i++)
+ receivers[sendForm["receiver"][i].value] = parseFloat(sendForm["amount"][i].value);
let privKey = prompt("Enter Private Key:");
sendForm['submit'].disabled = true;
- btc_api.sendTx(sender, privKey, receiver, amount, fee).then(result => {
+ btc_api.sendTx(sender, privKey, receivers, fee).then(result => {
console.log(result);
alert("transaction id: " + result.txid);
}).catch(error => console.error(error)).finally(_ => sendForm['submit'].disabled = false)
diff --git a/lib_btc.js b/lib_btc.js
index 657f0e1..9adde34 100644
--- a/lib_btc.js
+++ b/lib_btc.js
@@ -2549,7 +2549,7 @@
})();
})(typeof global !== "undefined" ? global : window);
-(function(EXPORTS) { //btc_api v1.0.3
+(function(EXPORTS) { //btc_api v1.0.4
const btc_api = EXPORTS;
const URL = "https://chain.so/api/v2/";
@@ -2604,6 +2604,8 @@
coinjs.compressed = true;
const verifyKey = btc_api.verifyKey = function(addr, key) {
+ if (!addr || !key)
+ return undefined;
switch (coinjs.addressDecode(addr).type) {
case "standard":
return btc_api.address(key) === addr;
@@ -2638,7 +2640,7 @@
}
}
- btc_api.sendTx = function(senderID, senderPrivKey, receiverID, amount, fee) {
+ btc_api.sendTx = function(senderID, senderPrivKey, receivers, fee) {
return new Promise((resolve, reject) => {
if (!verifyKey(senderID, senderPrivKey))
return reject("Invalid privateKey");
@@ -2646,17 +2648,18 @@
senderPrivKey = coinjs.privkey2wif(key);
let redeemScript = getRedeemScript(senderID, senderPrivKey);
getBalance(senderID).then(balance => {
- if (balance < amount + fee)
+ let total_amount = 0;
+ for (let r in receivers)
+ total_amount += receivers[r];
+ total_amount = parseFloat(total_amount.toFixed(8));
+ if (balance < total_amount + fee)
return reject("Insufficient Balance");
- //coinjs.compressed = true; //true if WIF?
- var r = coinjs.transaction();
- //var wif = coinjs.privkey2wif(privKeyHex); //privateKey: Hex to WIF
- //var address1 = coinjs.scripthash2address(address0); //receiver: Hash to Hex
+ var tx = coinjs.transaction();
getUTXO(senderID).then(result => {
let utxos = result.data.txs.reverse();
console.debug(balance, utxos);
var input_total = 0;
- for (let i = 0; i < utxos.length && input_total < amount + fee; i++) {
+ for (let i = 0; i < utxos.length && input_total < total_amount + fee; i++) {
input_total += parseFloat(utxos[i].value);
let script = utxos[i].script_hex;
if (redeemScript) { //redeemScript for segwit/bech32
@@ -2666,18 +2669,21 @@
s.writeBytes(coinjs.numToBytes((utxos[i].value * 100000000).toFixed(0), 8));
script = Crypto.util.bytesToHex(s.buffer);
}
- r.addinput(utxos[i].txid, utxos[i].output_no, script, 0xffffffff /*sequence*/ );
+ tx.addinput(utxos[i].txid, utxos[i].output_no, script, 0xffffffff /*sequence*/ );
}
- r.addoutput(receiverID, amount);
- let change = parseFloat((input_total - (amount + fee)).toFixed(8));
+ if (input_total < total_amount + fee)
+ return reject("Insufficient Balance (UTXO)")
+ for (let r in receivers)
+ tx.addoutput(r, receivers[r]);
+ let change = parseFloat((input_total - (total_amount + fee)).toFixed(8));
if (change)
- r.addoutput(senderID, change);
- console.debug(input_total, amount, fee, change);
- console.debug("Unsigned:", r.serialize());
- r.sign(senderPrivKey, 1 /*sighashtype*/ ); //Sign the tx using private key WIF
- console.debug("Signed:", r.serialize());
+ tx.addoutput(senderID, change);
+ console.debug(input_total, total_amount, fee, change);
+ console.debug("Unsigned:", tx.serialize());
+ tx.sign(senderPrivKey, 1 /*sighashtype*/ ); //Sign the tx using private key WIF
+ console.debug("Signed:", tx.serialize());
debugger;
- broadcast(r.serialize())
+ broadcast(tx.serialize())
.then(result => resolve(result))
.catch(error => reject(error));
}).catch(error => reject(error))