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bitcoincashjs
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fix and improve SendTx example

patch-2
Manuel Araoz 11 years ago
parent
84ec7bae4c
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fc1dcbd9d0
2 changed files with 203 additions and 151 deletions
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  1. 227
      README.md
  2. 127
      examples/SendTx.js

227
README.md
View File

@ -62,42 +62,43 @@ addrs.forEach(function(addr) {
For this example you need a running bitcoind instance with RPC enabled. For this example you need a running bitcoind instance with RPC enabled.
```js ```js
var bitcore = require('bitcore'); var bitcore = require('../bitcore');
var networks = bitcore.networks; var Peer = bitcore.Peer;
var Peer = bitcore.Peer; var PeerManager = bitcore.PeerManager;
var PeerManager = require('soop').load('../PeerManager', {
network: networks.testnet
});
var handleBlock = function(info) { var handleBlock = function(info) {
console.log('** Block Received **'); console.log('** Block Received **');
console.log(info.message); console.log(info.message);
}; };
var handleTx = function(info) { var handleTx = function(info) {
var tx = info.message.tx.getStandardizedObject(); var tx = info.message.tx.getStandardizedObject();
console.log('** TX Received **');
console.log(tx);
};
var handleInv = function(info) { console.log('** TX Received **');
console.log('** Inv **'); console.log(tx);
console.log(info.message); };
var invs = info.message.invs;
info.conn.sendGetData(invs);
};
var peerman = new PeerManager(); var handleInv = function(info) {
console.log('** Inv **');
console.log(info.message);
peerman.addPeer(new Peer('127.0.0.1', 18333)); var invs = info.message.invs;
info.conn.sendGetData(invs);
};
peerman.on('connection', function(conn) { var peerman = new PeerManager({
conn.on('inv', handleInv); network: 'testnet'
conn.on('block', handleBlock); });
conn.on('tx', handleTx);
});
peerman.start(); peerman.addPeer(new Peer('127.0.0.1', 18333));
peerman.on('connection', function(conn) {
conn.on('inv', handleInv);
conn.on('block', handleBlock);
conn.on('tx', handleTx);
});
peerman.start();
``` ```
PeerManager will emit the following events: 'version', 'verack', 'addr', 'getaddr', 'error' 'disconnect'; and will relay events like: 'tx', 'block', 'inv'. Please see [PeerManager.js](PeerManager.js), [Peer.js](Peer.js) and [Connection.js](Connection.js) PeerManager will emit the following events: 'version', 'verack', 'addr', 'getaddr', 'error' 'disconnect'; and will relay events like: 'tx', 'block', 'inv'. Please see [PeerManager.js](PeerManager.js), [Peer.js](Peer.js) and [Connection.js](Connection.js)
@ -140,83 +141,101 @@ by the transaction size. Documentation on the parameters of `TransactionBuilder`
can be found on the source file. can be found on the source file.
```js ```js
var bitcore = require('bitcore'); var bitcore = require('bitcore');
var networks = bitcore.networks; var Peer = bitcore.Peer;
var Peer = bitcore.Peer; var TransactionBuilder = bitcore.TransactionBuilder;
var TransactionBuilder = bitcore.TransactionBuilder; var PeerManager = bitcore.PeerManager;
var PeerManager = require('soop').load('../PeerManager', {
network: networks.testnet // Unspent transactions can be found via the insight.bitcore.io or blockchain.info APIs
}); var unspent = [{
'txid': '707108b5ba4f78dc951df4647a03365bf36432ea57fb641676045c5044daaea7',
// Unspent transactions can be found via the insight.bitcore.io or blockchain.info APIs 'vout': 0,
var unspent = [ 'address': 'n3QDC7DzsMmN4mcyp3k7XGPX7zFXXHG387',
{ 'scriptPubKey': '76a914f00c4a92ee2314ab08ac0283dc8d07d9bf2be32388ac',
"address": "n4g2TFaQo8UgedwpkYdcQFF6xE2Ei9Czvy", 'amount': 0.12345600,
"txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc1", 'confirmations': 43537
"scriptPubKey": "76a914fe021bac469a5c49915b2a8ffa7390a9ce5580f988ac", }, {
"vout": 1, 'txid': '87a158d32833cb555aea27b6a21af569ccaeb8f9b19691e05f1e6c2b3440bdb3',
"amount": 1.0101, 'vout': 1,
"confirmations":7 'address': 'mxdrp9s4mVxS9X4RBYiLe99v59V81XA5C3',
}, 'scriptPubKey': '76a914bbc87986da6b17c7876db4efacf59a95e14f6cf588ac',
{ 'amount': 0.05749800,
"address": "mhNCT9TwZAGF1tLPpZdqfkTmtBkY282YDW", 'confirmations': 43536
"txid": "2ac165fa7a3a2b535d106a0041c7568d03b531e58aeccdd3199d7289ab12cfc2", }
"scriptPubKey": "76a9141448534cb1a1ec44665b0eb2326e570814afe3f188ac",
"vout": 0, ];
"confirmations": 1,
"amount": 10 // Private keys in WIF format (see TransactionBuilder.js for other options)
} var keys = [
]; 'cQA75LXhV5JkMT8wkkqjR87SnHK4doh3c21p7PAd5tp8tc1tRBAY',
'cRz85dz9AiDieRpEwoucfXXQa1jdHHghcv6YnnVVGZ3MQyR1X4u2',
// Private keys in WIF format (see TransactionBuilder.js for other options) 'cSq7yo4fvsbMyWVN945VUGUWMaSazZPWqBVJZyoGsHmNq6W4HVBV',
var keys = [ 'cPa87VgwZfowGZYaEenoQeJgRfKW6PhZ1R65EHTkN1K19cSvc92G',
"cSq7yo4fvsbMyWVN945VUGUWMaSazZPWqBVJZyoGsHmNq6W4HVBV", 'cPQ9DSbBRLva9av5nqeF5AGrh3dsdW8p2E5jS4P8bDWZAoQTeeKB'
"cPa87VgwZfowGZYaEenoQeJgRfKW6PhZ1R65EHTkN1K19cSvc92G", ];
"cPQ9DSbBRLva9av5nqeF5AGrh3dsdW8p2E5jS4P8bDWZAoQTeeKB"
]; var peerman = new PeerManager({
network: 'testnet'
var peerman = new PeerManager(); });
peerman.addPeer(new Peer('127.0.0.1', 18333)); peerman.addPeer(new Peer('127.0.0.1', 18333));
peerman.on('connect', function() { peerman.on('connect', function() {
var conn = peerman.getActiveConnection(); var conn = peerman.getActiveConnection();
if (conn) { if (conn) {
var outs = [{address: toAddress, amount: amt}]; // define transaction output
var opts = {remainderOut: {address: changeAddressString}}; var outs = [{
var TransactionBuilder = bitcore.TransactionBuilder; address: 'mhNCT9TwZAGF1tLPpZdqfkTmtBkY282YDW',
amount: 0.1337
var tx = new TransactionBuilder(opts) }];
.setUnspent(unspent) // set change address
.setOutputs(outs) var opts = {
.sign(keys) remainderOut: {
.build(); address: 'n4g2TFaQo8UgedwpkYdcQFF6xE2Ei9Czvy'
}
/* Create and signing can be done in multiple steps: };
* var tx = new TransactionBuilder(opts)
* var builder = new bitcore.TransactionBuilder(opts) .setUnspent(unspent)
* .setUnspent(utxos) .setOutputs(outs)
* .setOutputs(outs); .sign(keys)
* .build();
* // Sign with the first key
* builder.sign(key1); /* Create and signing can be done in multiple steps:
* var tx = builder.build(); // Partially signed transaction *
* * var builder = new bitcore.TransactionBuilder(opts)
* // Sign with the second key * .setUnspent(utxos)
* builder.sign(key2); * .setOutputs(outs);
* if (builder.isFullySigned()){ *
* var tx = builder.build(); * // Sign with the first key
* } * builder.sign(key1);
* * var tx = builder.build(); // Partially signed transaction
* var selectedUnspent = build.getSelectedUnspent(); // Retrieve selected unspent outputs from the transaction *
*/ * // Sign with the second key
conn.sendTx(tx.serialize().toString('hex')); * builder.sign(key2);
} * if (builder.isFullySigned()){
conn.on('reject', function() { * var tx = builder.build();
console.log('Transaction Rejected'); * }
*
* var selectedUnspent = build.getSelectedUnspent(); // Retrieve selected unspent outputs from the transaction
*/
var txid = tx.getHash().toString('hex');
console.log('Created transaction with txid '+txid);
var raw_tx = tx.serialize().toString('hex');
console.log('Transaction raw hex dump:');
console.log('-------------------------------------');
console.log(raw_tx);
console.log('-------------------------------------');
// finally, send transaction to the bitcoin network
conn.sendTx(tx);
// for now, the network won't respond in any case
// (transaction accepted, transaction rejected)
// in the future, we may listen to 'reject' message
// see https://gist.github.com/gavinandresen/7079034
}
}); });
});
peerman.start(); peerman.start();
``` ```
## Parsing a Script ## Parsing a Script

127
examples/SendTx.js
View File

@ -4,67 +4,100 @@ var run = function() {
// Replace '../bitcore' with 'bitcore' if you use this code elsewhere. // Replace '../bitcore' with 'bitcore' if you use this code elsewhere.
var bitcore = require('../bitcore'); var bitcore = require('../bitcore');
var Peer = bitcore.Peer; var Peer = bitcore.Peer;
var Transaction = bitcore.Transaction; var TransactionBuilder = bitcore.TransactionBuilder;
var Address = bitcore.Address;
var Script = bitcore.Script;
var coinUtil = bitcore.util;
var PeerManager = bitcore.PeerManager; var PeerManager = bitcore.PeerManager;
var createTx = function() { // Unspent transactions can be found via the insight.bitcore.io or blockchain.info APIs
var TXIN = 'd05f35e0bbc495f6dcab03e599c8f5e32a07cdb4bc76964de201d06a2a7d8265'; var unspent = [{
var TXIN_N = 0; 'txid': '707108b5ba4f78dc951df4647a03365bf36432ea57fb641676045c5044daaea7',
var ADDR = 'muHct3YZ9Nd5Pq7uLYYhXRAxeW4EnpcaLz'; 'vout': 0,
var VAL = '0.001'; 'address': 'n3QDC7DzsMmN4mcyp3k7XGPX7zFXXHG387',
'scriptPubKey': '76a914f00c4a92ee2314ab08ac0283dc8d07d9bf2be32388ac',
var txobj = { 'amount': 0.12345600,
version: 1, 'confirmations': 43537
lock_time: 0, }, {
ins: [], 'txid': '87a158d32833cb555aea27b6a21af569ccaeb8f9b19691e05f1e6c2b3440bdb3',
outs: [] 'vout': 1,
}; 'address': 'mxdrp9s4mVxS9X4RBYiLe99v59V81XA5C3',
'scriptPubKey': '76a914bbc87986da6b17c7876db4efacf59a95e14f6cf588ac',
var txin = { 'amount': 0.05749800,
s: coinUtil.EMPTY_BUFFER, // Add signature 'confirmations': 43536
q: 0xffffffff }
};
var hash = new Buffer(TXIN.split('').reverse(), 'hex');
var vout = parseInt(TXIN_N);
var voutBuf = new Buffer(4);
voutBuf.writeUInt32LE(vout, 0);
txin.o = Buffer.concat([hash, voutBuf]);
txobj.ins.push(txin);
var addr = new Address(ADDR);
var script = Script.createPubKeyHashOut(addr.payload());
var valueNum = coinUtil.parseValue(VAL);
var value = coinUtil.bigIntToValue(valueNum);
var txout = {
v: value,
s: script.getBuffer(),
};
txobj.outs.push(txout);
return new Transaction(txobj); ];
}; // Private keys in WIF format (see TransactionBuilder.js for other options)
var keys = [
'cQA75LXhV5JkMT8wkkqjR87SnHK4doh3c21p7PAd5tp8tc1tRBAY',
'cRz85dz9AiDieRpEwoucfXXQa1jdHHghcv6YnnVVGZ3MQyR1X4u2',
'cSq7yo4fvsbMyWVN945VUGUWMaSazZPWqBVJZyoGsHmNq6W4HVBV',
'cPa87VgwZfowGZYaEenoQeJgRfKW6PhZ1R65EHTkN1K19cSvc92G',
'cPQ9DSbBRLva9av5nqeF5AGrh3dsdW8p2E5jS4P8bDWZAoQTeeKB'
];
var peerman = new PeerManager(); var peerman = new PeerManager({
network: 'testnet'
});
peerman.addPeer(new Peer('127.0.0.1', 18333)); peerman.addPeer(new Peer('127.0.0.1', 18333));
peerman.on('connect', function() { peerman.on('connect', function() {
var conn = peerman.getActiveConnection(); var conn = peerman.getActiveConnection();
if (conn) { if (conn) {
conn.sendTx(createTx()); // define transaction output
var outs = [{
address: 'mhNCT9TwZAGF1tLPpZdqfkTmtBkY282YDW',
amount: 0.1337
}];
// set change address
var opts = {
remainderOut: {
address: 'n4g2TFaQo8UgedwpkYdcQFF6xE2Ei9Czvy'
}
};
var tx = new TransactionBuilder(opts)
.setUnspent(unspent)
.setOutputs(outs)
.sign(keys)
.build();
/* Create and signing can be done in multiple steps:
*
* var builder = new bitcore.TransactionBuilder(opts)
* .setUnspent(utxos)
* .setOutputs(outs);
*
* // Sign with the first key
* builder.sign(key1);
* var tx = builder.build(); // Partially signed transaction
*
* // Sign with the second key
* builder.sign(key2);
* if (builder.isFullySigned()){
* var tx = builder.build();
* }
*
* var selectedUnspent = build.getSelectedUnspent(); // Retrieve selected unspent outputs from the transaction
*/
var txid = tx.getHash().toString('hex');
console.log('Created transaction with txid '+txid);
var raw_tx = tx.serialize().toString('hex');
console.log('Transaction raw hex dump:');
console.log('-------------------------------------');
console.log(raw_tx);
console.log('-------------------------------------');
// finally, send transaction to the bitcoin network
conn.sendTx(tx);
// for now, the network won't respond in any case
// (transaction accepted, transaction rejected)
// in the future, we may listen to 'reject' message
// see https://gist.github.com/gavinandresen/7079034
} }
conn.on('reject', function() {
console.log('Transaction Rejected');
});
}); });
peerman.start(); peerman.start();
}; };
module.exports.run = run; module.exports.run = run;

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