bitcore-node
Version:
A blockchain indexing node with extended capabilities using bitcore
170 lines • 6.38 kB
JavaScript
;
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Object.defineProperty(o, k2, desc);
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o[k2] = m[k];
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
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};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const bitcoreLib = require('bitcore-lib');
const { Transaction, PrivateKey } = bitcoreLib;
const UnspentOutput = Transaction.UnspentOutput;
const config_1 = __importDefault(require("../../src/config"));
const storage_1 = require("../../src/services/storage");
const block_1 = require("../../src/models/block");
const index_js_1 = require("../helpers/index.js");
const crypto = __importStar(require("crypto"));
function randomHash() {
return crypto.randomBytes(32).toString('hex');
}
function* generateBlocks(blockCount, blockSizeMb) {
let prevBlock = undefined;
for (let i = 0; i < blockCount; i++) {
let tempBlock = generateBlock(blockSizeMb, prevBlock);
yield tempBlock;
prevBlock = tempBlock;
}
}
function preGenerateBlocks(blockCount, blockSizeMb) {
const blocks = new Array();
for (let block of generateBlocks(blockCount, blockSizeMb)) {
blocks.push(block);
}
return blocks;
}
function generateBlock(blockSizeMb, previousBlock) {
const txAmount = 100000;
const prevHash = previousBlock ? previousBlock.hash : '';
let block = {
hash: randomHash(),
transactions: [],
toBuffer: () => {
return { length: 264 };
},
header: {
toObject: () => {
return {
hash: randomHash(),
confirmations: 1,
strippedsize: 228,
size: 264,
weight: 948,
height: 1355,
version: 536870912,
versionHex: '20000000',
merkleRoot: randomHash(),
tx: [randomHash()],
time: 1526756523,
mediantime: 1526066375,
nonce: 2,
bits: parseInt('207fffff', 16),
difficulty: 4.656542373906925e-10,
chainwork: '0000000000000000000000000000000000000000000000000000000000000a98',
prevHash: prevHash
};
}
}
};
let transactions = new Array();
if (previousBlock) {
for (let transaction of previousBlock.transactions) {
// each transaction should have one input and one output
const utxos = transaction.outputs.map(output => {
return new UnspentOutput({
txid: transaction.hash,
vout: 0,
address: output.script.toAddress('mainnet'),
scriptPubKey: output.script.toBuffer().toString('hex'),
amount: Number(txAmount)
});
});
let newTx = new Transaction().from(utxos);
for (let _ of newTx.inputs) {
newTx.to(newAddress(), txAmount);
}
transactions.push(newTx);
}
block.transactions = transactions;
}
else {
let txPerMb = 2500;
let blockSize = txPerMb * blockSizeMb;
for (let i = 0; i < blockSize; i++) {
let newTx = new Transaction().to(newAddress(), txAmount);
block.transactions.push(newTx);
}
}
return block;
}
let addresses = new Array();
for (let i = 0; i < 100; i++) {
var privateKey = new PrivateKey();
var publicKey = privateKey.toPublicKey();
var address = publicKey.toAddress().toString();
addresses.push(address);
}
function newAddress() {
let index = Math.floor(Math.random() * 100);
return addresses[index];
}
function startBenchmarkDatabase() {
const storageArgs = {
dbHost: config_1.default.dbHost,
dbName: 'bitcore-benchmark'
};
return storage_1.Storage.start(storageArgs);
}
async function benchmark(blockCount, blockSizeMb) {
await (0, index_js_1.resetDatabase)();
console.log('Generating blocks');
const blocks = preGenerateBlocks(blockCount, blockSizeMb);
const startTime = new Date();
console.log('Adding blocks');
for (let block of blocks) {
process.stdout.write('.');
await block_1.BitcoinBlockStorage.addBlock({ block, chain: 'BENCH', network: 'MARK', initialSyncComplete: false });
}
process.stdout.write('\n');
const endTime = new Date();
const time = endTime.getTime() - startTime.getTime();
const seconds = time / 1000;
console.log(`Benchmark for ${blockCount} (${blockSizeMb} MB) blocks completed after ${seconds} s`);
console.log(`${(blockSizeMb * blockCount) / seconds} MB/s`);
console.log(`${seconds / blockCount} Seconds/Block`);
}
startBenchmarkDatabase()
.then(() => benchmark(80, 1))
.then(() => benchmark(5, 32))
.then(() => benchmark(1, 64))
.then(() => process.exit());
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