Bitcore是BitPay提供的一套工具。 其目标是为Bitcoin开发人员提供易于使用的工具。 几乎所有的Bitcore的代码都是用JavaScript编写的。 有一些专门为NodeJS编写的模块。 最后,Bitcore的“节点”模块包括Bitcoin Core的C ++代码。 有关详细信息,请参阅https://bitcore.io。
- Bitcoin full node (bitcore-node)
- Block explorer (insight)
- Block, transaction, and wallet utilities (bitcore-lib)
- Communicating directly with Bitcoin’s P2P network (bitcore-p2p)
- Seed entropy mnemonic generation(种子熵助记符) (bitcore-mnemonic)
- Payment protocol (bitcore-payment-protocol)
- Message verification and signing (bitcore-message)
- Elliptic curve Integrated Encryption Scheme(椭圆曲线综合加密方案) (bitcore-ecies)
- Wallet service (bitcore-wallet-service)
- Wallet client (bitcore-wallet-client)
- Integrating services directly with Bitcoin Core (bitcore-node)
- NodeJS >= 4.x
如果使用NodeJS和节点REPL:
$ npm install -g bitcore-lib bitcore-p2p
使用关联的私钥创建新的比特币地址:
> bitcore = require('bitcore-lib')
> privateKey = new bitcore.PrivateKey()
> address = privateKey.toAddress().toString()
创建分层确定性私钥和地址:
> hdPrivateKey = bitcore.HDPrivateKey()
> hdPublicKey = bitcore.HDPublicKey(hdPrivateKey)
> hdAddress = new bitcore.Address(hdPublicKey.publicKey).toString()
从UTXO创建和签署交易:
> utxo = {
txId: transaction id containing an unspent output,
outputIndex: output index e.g. 0,
address: addressOfUtxo,
script: bitcore.Script.buildPublicKeyHashOut(addressOfUtxo).toString(),
satoshis: amount sent to the address
}
> fee = 3000 //set appropriately for conditions on the network
> tx = new bitcore.Transaction()
.from(utxo)
.to(address, 35000)
.fee(fee)
.enableRBF()
.sign(privateKeyOfUtxo)
替换mempool中的最后一个交易(替换费):
> rbfTx = new Transaction()
.from(utxo)
.to(address, 35000)
.fee(fee*2)
.enableRBF()
.sign(privateKeyOfUtxo);
> tx.serialize();
> rbfTx.serialize();
将交易广播到比特币网络(注意:仅广播有效交易;请参阅https://bitnodes.21.co/nodes):
1.将以下代码复制到名为broadcast.js的文件中。
2.tx和rbfTx变量分别是tx.serialize()和rbfTx.serialize()的输出。
3.为了更换费用,对等端必须支持bitcoind选项mempoolreplace并将其设置为1。
4.运行文件节点broadcast.js:
var p2p = require('bitcore-p2p');
var bitcore = require('bitcore-lib');
var tx = new bitcore.Transaction('output from serialize function');
var rbfTx = new bitcore.Transaction('output from serialize function');
var host = 'ip address'; //use valid peer listening on tcp 8333
var peer = new p2p.Peer({host: host});
var messages = new p2p.Messages();
peer.on('ready', function() {
var txs = [messages.Transaction(tx), messages.Transaction(rbfTx)];
var index = 0;
var interval = setInterval(function() {
peer.sendMessage(txs[index++]);
console.log('tx: ' + index + ' sent');
if (index === txs.length) {
clearInterval(interval);
console.log('disconnecting from peer: ' + host);
peer.disconnect();
}
}, 2000);
});
peer.connect();