- Bitcore的功能列表
- Bitcore库示例
- 先决条件
- 使用bitcore-lib的钱包示例
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。
Bitcore的功能列表
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)Playground (bitcore-playground)Integrating services directly with Bitcoin Core (bitcore-node)
Bitcore库示例
先决条件
NodeJS >= 4.x 或者使用hosted online playground
如果使用NodeJS和节点REPL:
$ npm install -g bitcore-lib bitcore-p2p$ NODE_PATH=$(npm list -g | head -1)/node_modules node
使用bitcore-lib的钱包示例
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 indexi 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):将以下代码复制到名为broadcast.js的文件中。tx和rbfTx变量分别是tx.serialize()和rbfTx.serialize()的输出。为了更换费用,对等人必须支持bitcoind选项mempoolreplace并将其设置为1。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 8333var 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();
