超级账本HyperLedger的explorer的使用

原文地址：超级账本HyperLedger的explorer的使用

• 说明
• 安装
• 遇到的问题
  • 页面空白没有任何内容
  • openssl需要更新
  • Error: No identity has been assigned to this client
• 参考

说明

HyperLedger Explorer是HyplerLedger的子项目，是一个区块链浏览器。

网易云课堂：HyperLedger Fabric手动部署教程的视频讲解

超级账本HyperLedger Fabric手动部署教程的文字实录(公开)

安装

安装依赖:

yum install -y epel-release npm postgresql postgresql-server gcc-c++

启动postgre:

postgresql-setup initdb
chown -R postgres:postgres /var/run/postgresql/
systemctl start postgresql

获取代码:

git clone https://gerrit.hyperledger.org/r/blockchain-explorer
cp app/db/explorerpg.sql /tmp/
cp app/db/updatepg.sql /tmp/

设置数据库：

sudo -u postgres psql
postgres=# \i /tmp/explorerpg.sql
fabricexplorer=# \i /tmp/updatepg.sql

查看创建的表：

fabricexplorer=# \l
                                  List of databases
      Name      |  Owner   | Encoding  |   Collate   | Ctype |   Access privileges
----------------+----------+-----------+-------------+-------+-----------------------
 fabricexplorer | hppoc    | SQL_ASCII | en_US.UTF-8 | C     |
 postgres       | postgres | SQL_ASCII | en_US.UTF-8 | C     |
 template0      | postgres | SQL_ASCII | en_US.UTF-8 | C     | =c/postgres          +
                |          |           |             |       | postgres=CTc/postgres
 template1      | postgres | SQL_ASCII | en_US.UTF-8 | C     | =c/postgres          +
                |          |           |             |       | postgres=CTc/postgres
(4 rows)

fabricexplorer=# \d
                   List of relations
 Schema |           Name            |   Type   | Owner
--------+---------------------------+----------+-------
 public | blocks                    | table    | hppoc
 public | blocks_id_seq             | sequence | hppoc
 public | chaincodes                | table    | hppoc
 public | chaincodes_id_seq         | sequence | hppoc
 public | channel                   | table    | hppoc
 public | channel_id_seq            | sequence | hppoc
 public | peer                      | table    | hppoc
 public | peer_id_seq               | sequence | hppoc
 public | peer_ref_channel          | table    | hppoc
 public | peer_ref_channel_id_seq   | sequence | hppoc
 public | transaction               | table    | hppoc
 public | transaction_id_seq        | sequence | hppoc
 public | write_lock                | table    | hppoc
 public | write_lock_write_lock_seq | sequence | hppoc

尝试登陆：

 psql postgres://hppoc:[email protected]:5432/fabricexplorer

如果登陆失败，修改/var/lib/pgsql/data/pg_hba.conf:

将：

host    all             all             127.0.0.1/32            ident

修改为：

host    all             all             127.0.0.1/32            trust

根据自己的情况，修改配置文件config.json:

{
    "network-config": {
        "org1": {
            "name": "platform",
            "mspid": "platform",
            "peer1": {
                "requests": "grpcs://peer0.platform.ennblock.cn:7051",
                "events": "grpcs://peer0.platform.ennblock.cn:7053",
                "server-hostname": "peer0.platform.ennblock.cn",
                "tls_cacerts": "/opt/app/fabric/cli/user/platform.ennblock.cn/Admin-peer0.platform.ennblock.cn/tls/ca.crt"
            },
            "admin": {
                "key": "/opt/app/fabric/cli/user/platform.ennblock.cn/Admin-peer0.platform.ennblock.cn/msp/keystore",
                "cert": "/opt/app/fabric/cli/user/platform.ennblock.cn/Admin-peer0.platform.ennblock.cn/msp/signcerts"
            }
        }
    },
    "host": "localhost",
    "port": "8080",
    "channel": "mychannel",
    "keyValueStore": "/tmp/fabric-client-kvs",
    "eventWaitTime": "30000",
    "pg": {
        "host": "127.0.0.1",
        "port": "5432",
        "database": "fabricexplorer",
        "username": "hppoc",
        "passwd": "password"
    },
    "license": "Apache-2.0"
}

安装、启动：

npm config set registry https://registry.npm.taobao.org
npm install

//还需要到client目录中编译，否则页面看不到内容
cd client
npm install 
npm run build

遇到的问题

页面空白没有任何内容

如果在浏览器里打开后页面空白，没有任何内容，很可能是没有到client目录中进行安装编译：

//还需要到client目录中编译，否则页面看不到内容
cd client
npm install 
npm run build

openssl需要更新

如果遇到下面的问题：

npm: relocation error: npm: symbol SSL_set_cert_cb, version libssl.so.10 not defined in file libssl.so.10 with link time reference

升级openssl:

yum update openssl -y

启动explorer：

npm build
node ./main.js

Error: No identity has been assigned to this client

如果遇到下面的错误：

postgres://hppoc:[email protected]:5432/fabricexplorer
Please open web browser to access ：http://0.0.0.0:8080/
[2018-04-26 19:26:42.977] [ERROR] Query - Error: No identity has been assigned to this client
	at Client._getSigningIdentity (/root/blockchain-explorer/node_modules/fabric-client/lib/Client.js:1206:11)
	at Channel.queryInfo (/root/blockchain-explorer/node_modules/fabric-client/lib/Channel.js:896:36)
	at helper.getOrgAdmin.then (/root/blockchain-explorer/app/query.js:98:18)
[2018-04-26 19:26:42.979] [ERROR] blockscanner - TypeError: Cannot read property 'low' of undefined
	at getChainInfo.then.response (/root/blockchain-explorer/app/query.js:213:23)

原因是config.json的中组织不是以org开头的。。。。这个还真是有点坑。。

参考

1. HyperLedger Explorer
2. blockchain explorer
3. npm install命令遇到relocation error: npm: symbol SSL_set_cert_cb的报错问题
4. Hyperledger Explorer is empty with Query - Error: No identity has been assigned to this client