比特币BTC相关服务 bitcore-node / insight 搭建

背景

由于BTC地址模型采用UTXO(即在钱包导入目标地址的前提下，节点只保存地址的所有交易记录)，所以通过节点无法直接读取地址余额。需要遍历UTXO列表进行累加计算出余额。

所以开源项目bitcore 诞生，bitcore 是基于nodejs 开发的提供开源的扫链、钱包、区块浏览器等综合服务

1. 安装BTC节点(私有链)

2. 拉取 bitcore 项目代码

此项目依赖BTC节点 + mongodb(主要用于保存交易记录等信息，类似扫链数据库)

git clone https://github.com/JKinGH/bitcore.git

3. 环境准备

具体参考此项目Readme.md

3.1 安装 node

官网地址，推荐使用v10.16.0

sudo su - 
cd /usr/local
wget https://nodejs.org/dist/v10.16.0/node-v10.16.0-linux-x64.tar.xz
tar xf node-v10.16.0-linux-x64.tar.xz
mv node-v10.16.0-linux-x64 node
echo 'export PATH=/usr/local/node/bin' :$PATH>> /etc/profile

3.2 安装mongodb（docker运行）

拉取mongodb镜像

docker pull mongo:4.0.14-xenial

mongodb启动脚本如下

#!/bin/bash
#
basedir=/opt/docker-instances/mongodb
sudo docker run -d --name mongodb \
    -v $basedir/data:/data/db \
	-p 27017:27017 \
    mongo:4.0.14-xenial

4. bitcore-node 配置文件

注意：
1. 配置文件必须是json格式，否则读取配置文件失败
2. 主要读取trustedPeers内容，即 BTC节点的P2P 地址、端口；RPC暂时没发现作用
3. 配置文件名称必须在bitcore目录下，并且名称为bitcore.config.json

4.1 regtest (私有链, 默认P2P/RPC端口 18444/18443)

{
  "bitcoreNode": {
    "modules": ["./bitcoin"],
    "services": {
      "api": {
        "wallets": {
          "allowCreationBeforeCompleteSync": true
        }
      }
    },
    "chains": {
      "BTC": {
        "regtest": {
          "chainSource": "p2p",
          "trustedPeers": [
            {
              "host": "127.0.0.1",
              "port": 18444
            }
          ],
          "rpc": {
            "host": "127.0.0.1",
            "port": 18443,
            "username": "xxx",
            "password": "admin@123"
          }
        }
      }
   }
  }
}

4.1 testnet (测试链、默认P2P/RPC端口 18333/18332)

{
  "bitcoreNode": {
    "modules": ["./bitcoin"],
    "services": {
      "api": {
        "wallets": {
          "allowCreationBeforeCompleteSync": true
        }
      }
    },
    "chains": {
      "BTC": {
        "testnet": {
          "chainSource": "p2p",
          "trustedPeers": [
            {
              "host": "127.0.0.1",
              "port": 18333
            }
          ],
          "rpc": {
            "host": "127.0.0.1",
            "port": 18332,
            "username": "xxx",
            "password": "admin@123"
          }
        }
      }
   }
  }
}

5. 启动 bitcore-node 服务(类似区块浏览器API)，默认端口 3000

API文档

cd bitcore/
npm run node   //前台运行

可查看启动的相关信息

devops@hn-baas:~/bitcore$ npm run node

> @8.13.0 node /home/devops/bitcore
> cd packages/bitcore-node && npm start


> [email protected] start /home/devops/bitcore/packages/bitcore-node
> npm run tsc && node build/src/server.js


> [email protected] tsc /home/devops/bitcore/packages/bitcore-node
> npm run clean && tsc


> [email protected] clean /home/devops/bitcore/packages/bitcore-node
> rm -rf build

{"message":"Starting Event Service","level":"info"}
{"message":"Starting P2P Manager","level":"info"}
{"message":"Starting BTC p2p worker","level":"info"}
(node:2790) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
{"message":"2019-12-30 10:30:05.575 GMT+8 | Connected to peer: 127.0.0.1:18444 | Chain: BTC | Network: regtest","level":"info"}
{"message":"This worker is now the syncing node for BTC regtest","level":"info"}
{"message":"2019-12-30 10:30:06.143 GMT+8 | Sync completed | Chain: BTC | Network: regtest","level":"info"}
{"message":"Starting Event Service","level":"info"}
{"message":"Starting API Service on port 3000","level":"info"}
{"message":"Starting Socket Service","level":"info"}
{"message":"Started Socket Service","level":"info"}
{"message":"Starting Event Service","level":"info"}
{"message":"Starting API Service on port 3000","level":"info"}
{"message":"Starting Socket Service","level":"info"}
{"message":"Starting Event Service","level":"info"}
{"message":"Starting API Service on port 3000","level":"info"}
{"message":"Starting Socket Service","level":"info"}
{"message":"Started Socket Service","level":"info"}
{"message":"Started Socket Service","level":"info"}
{"message":"Starting Event Service","level":"info"}
{"message":"Starting API Service on port 3000","level":"info"}
{"message":"Starting Socket Service","level":"info"}
{"message":"Started Socket Service","level":"info"}

查询交易相关的UTXO

devops@hn-baas:~$ curl  localhost:3000/api/BTC/regtest/tx/3b8bb3a8564925ae1c858854d7e1a7dd8fe4f5c6dbebe4cf77288d63b5af980a/coins -s | json
{
  "inputs": [],
  "outputs": [
    {
      "_id": "5e06f8575a489b45f4ea8f31",
      "chain": "BTC",
      "network": "regtest",
      "coinbase": true,
      "mintIndex": 0,
      "spentTxid": "",
      "mintTxid": "3b8bb3a8564925ae1c858854d7e1a7dd8fe4f5c6dbebe4cf77288d63b5af980a",
      "mintHeight": 999,
      "spentHeight": -2,
      "address": "2N5KUtRVv34YZzhNrHBfScPVkqxvN9FmTCq",
      "script": "a914846f9c3ac62f72cf3a91238d1e55b35fec0e06c087",
      "value": 78125000,
      "confirmations": -1
    },
    {
      "_id": "5e06f8575a489b45f4ea8f33",
      "chain": "BTC",
      "network": "regtest",
      "coinbase": true,
      "mintIndex": 1,
      "spentTxid": "",
      "mintTxid": "3b8bb3a8564925ae1c858854d7e1a7dd8fe4f5c6dbebe4cf77288d63b5af980a",
      "mintHeight": 999,
      "spentHeight": -2,
      "address": "false",
      "script": "6a24aa21a9ede2f61c3f71d1defd3fa999dfa36953755c690689799962b48bebd836974e8cf9",
      "value": 0,
      "confirmations": -1
    }
  ]
}

或者

cd bitcore/
nohup npm run node &  //后台运行

6. 启动insight 服务(浏览器界面) 默认端口 8200

cd bitcore/
npm run node  //前台运行

cd bitcore/
nohup npm run node &  //后台运行

6.1 在Chrome中打开区块浏览器页面