Initial Commit

Changelog:
Setup & Foundation
- bcoin
- express
- mongo
- eslint
- logging

Status: Bcoin syncs over network, uses a local leveldb to store blocks and checkpoints. Block event saves data to mongo. Express endpoint for block hashes, stubbed to reply with blockhashes until mongo models are finalized.

ToDo:
Move config out of code

.eslintrc.json

@@ -0,0 +1,7 @@
+{
+  "extends": "airbnb-base",
+  "env": {
+    "node": true,
+    "es6": true
+  }
+}

.gitignore

@@ -1,3 +1,8 @@
+# Config
+config/config.js
+
+## Default gitignore below this line
+
 # Logs
 logs
 *.log

config/config-template.js

@@ -0,0 +1,5 @@
+const config = {
+  mongodb: 'mongodb://localhost/bitcore',
+};
+
+module.exports = config;

index.js

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+const FullNode = require('bcoin/lib/node/fullnode');
+const mongoose = require('mongoose');
+const config = require('./config/config.js');
+const logger = require('./lib/logger');
+const Block = require('./models/block');
+const Server = require('./lib/server');
+
+mongoose.connect(config.mongodb, {
+  useMongoClient: true
+});
+
+logger.log('debug',
+  'Debug mode started');
+
+const node = new FullNode({
+  network: 'main',
+  db: 'leveldb',
+  checkpoints: true,
+  workers: true,
+  //logLevel: 'info',
+});
+
+(async () => {
+  await node.open();
+  await node.connect();
+
+  node.on('connect', (entry, block) => {
+    block.height = entry.height;
+    processBlock(block);
+  });
+
+  node.on('tx', (tx) => {
+    console.log('%s added to mempool.', tx.txid());
+  });
+
+  node.startSync();
+})();
+
+function processBlock(block) {
+  block.hash = revHex(block.hash().toString('hex'));
+  logger.log('debug',
+    `New Block Height: ${block.height}, Hash: ${block.hash}`);
+  let b = new Block({
+    mainChain: true,
+    height: block.height,
+    hash: block.hash,
+    version: block.version,
+    merkleRoot: block.merkleRoot,
+    time: block.ts,
+    timeNormalized: block.ts,
+    nonce: block.nonce,
+    previousBlockHash: block.prevBlock,
+    transactionCount: block.txs.length,
+  });
+  b.save((err) => {
+    if (err) {
+      console.log(err);
+    }
+  })
+}
+
+function revHex(hexString) {
+  let out = '';
+  for (let i = 0; i < hexString.length; i += 2) {
+    out = hexString.slice(i, i + 2) + out;
+  }
+
+  return out;
+}
+
+Server.listen(3000, function() {
+  console.log('listening on port 3000');
+})

lib/logger/index.js

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+const winston = require('winston');
+const logfile = new Date().toISOString();
+
+const logger = new (winston.Logger)({
+  transports: [
+    new (winston.transports.Console)({
+      timestamp: true,
+    }),
+    new (winston.transports.File)({
+      filename: `logs/${logfile}.log`,
+    }),
+  ],
+});
+
+logger.level = process.env.LOG || 'debug';
+
+module.exports = logger;

lib/server/index.js

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+const express = require('express');
+const app = express();
+const mongoose = require('mongoose');
+const config = require('../../config/config.js');
+const Block = require('../../models/block.js');
+
+mongoose.connect(config.mongodb, {
+  useMongoClient: true
+});
+
+app.get('/block/:blockhash', (req, res) => {
+  res.send(req.params.blockhash);
+});
+
+module.exports = app;

models/block.js

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+const mongoose = require('mongoose');
+const Schema = mongoose.Schema;
+
+const BlockSchema = new Schema({
+  hash: String,
+  size: Number,
+  height: Number,
+  version: Number,
+  merkleRoot: String,
+  tx: Array,
+  time: Date,
+  nonce: Number,
+  bits: Number,
+  difficulty: Number,
+  chainwork: Number,
+  confirmations: Number,
+  previousBlockHash: String,
+  nextBlockHash: String,
+  reward: Number,
+  timeNormalized: Date,
+  isMainChain: Boolean,
+  poolInfo: Object,
+  transactionCount: Number,
+});
+
+BlockSchema.index({ hash: 1 }, { unique: true });
+BlockSchema.index({ height: 1 });
+BlockSchema.index({ time: 1 });
+BlockSchema.index({ timeNormalized: 1 });
+
+const Block = mongoose.model('Block', BlockSchema);
+
+module.exports = Block;

package.json

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+{
+  "name": "bitcore-bcoin-insight",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "",
+  "dependencies": {
+    "bcoin": "^1.0.0-beta.14",
+    "express": "^4.15.3",
+    "mongoose": "^4.11.5",
+    "winston": "^2.3.1"
+  },
+  "devDependencies": {
+    "eslint-config-airbnb-base": "^11.3.1",
+    "eslint-plugin-import": "^2.7.0"
+  }
+}