var bitcoin = require('bitcoinjs-lib');
var litecoin = bitcoin.networks.litecoin
function rng () { return Buffer.from('random_bufferrandom_buffer______') }
// buffer 長度須為32
var keyPair = bitcoin.ECPair.makeRandom({ network: litecoin, rng: rng })
var wif = keyPair.toWIF()
var address = keyPair.getAddress()
console.log(address)
把WIF格式的私鑰轉換為地址
var bitcoin = require('bitcoinjs-lib');
var keyPair = bitcoin.ECPair.fromWIF('Kxr9tQED9H44gCmp6HAdmemAzU3n84H3dGkuWTKvE23JgHMW8gct');
var address = keyPair.getAddress();
console.log(address);
var bitcoin = require('bitcoinjs-lib');
var pubKeys = [
'026477115981fe981a6918a6297d9803c4dc04f328f22041bedff886bbc2962e01',
'02c96db2302d19b43d4c69368babace7854cc84eb9e061cde51cfa77ca4a22b8b9',
'03c6103b3b83e4a24a0e33a4df246ef11772f9992663db0c35759a5e2ebf68d8e9'
].map(function (hex) { return Buffer.from(hex, 'hex') })
var redeemScript = bitcoin.script.multisig.output.encode(2, pubKeys) // 2 of 3
var scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(redeemScript))
var address = bitcoin.address.fromOutputScript(scriptPubKey)
console.log(address)
產生交易
var bitcoin = require("bitcoinjs-lib");
var key = bitcoin.ECPair.fromWIF("L1Kzcyy88LyckShYdvoLFg1FYpB5ce1JmTYtieHrhkN65GhVoq73");
var tx = new bitcoin.TransactionBuilder();
tx.addInput("d18e7106e5492baf8f3929d2d573d27d89277f3825d3836aa86ea1d843b5158b", 1);
tx.addOutput("12idKQBikRgRuZEbtxXQ4WFYB7Wa3hZzhT", 149000);
tx.sign(0, key);
console.log(tx.build().toHex());
產生較複雜的交易，並廣播到Bitcoin Test Network
git clone https://github.com/bitcoinjs/bitcoinjs-lib.git
cd bitcoinjs-lib
npm install
cd /test/integration
點選transaction.js 然後把code整個刪掉改為如下
/* global describe, it */
var assert = require('assert')
var bitcoin = require('../../')
var dhttp = require('dhttp/200')
var testnet = bitcoin.networks.testnet
var testnetUtils = require('./_testnet')
function rng () {
return Buffer.from('YT8dAtK4d16A3P1z+TpwB2jJ4aFH3g9M1EioIBkLEV4=', 'base64')
}
var alice1 = bitcoin.ECPair.makeRandom({ network: testnet })
var alice2 = bitcoin.ECPair.makeRandom({ network: testnet })
var aliceChange = bitcoin.ECPair.makeRandom({ rng: rng, network: testnet })
// "simulate" on testnet that Alice has 2 unspent outputs
testnetUtils.faucetMany([
{
address: alice1.getAddress(),
value: 5e4
},
{
address: alice2.getAddress(),
value: 7e4
}
], function (err, unspents) {
var tx = new bitcoin.TransactionBuilder(testnet)
tx.addInput(unspents[0].txId, unspents[0].vout) // alice1 unspent
tx.addInput(unspents[1].txId, unspents[1].vout) // alice2 unspent
tx.addOutput('mwCwTceJvYV27KXBc3NJZys6CjsgsoeHmf', 8e4) // the actual "spend"
tx.addOutput(aliceChange.getAddress(), 1e4) // Alice's change
// (in)(4e4 + 2e4) - (out)(1e4 + 3e4) = (fee)2e4 = 20000, this is the miner fee
// Alice signs each input with the respective private keys
tx.sign(0, alice1)
tx.sign(1, alice2)
// build and broadcast to the Bitcoin Testnet network
dhttp({
method: 'POST',
url: 'https://api.ei8ht.com.au:9443/3/pushtx',
// url: 'http://tbtc.blockr.io/api/v1/tx/push',
body: tx.build().toHex()
},() => {})
// to build and broadcast to the actual Bitcoin network, see https://github.com/bitcoinjs/bitcoinjs-lib/issues/839
})
