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hyperledger v1.0.5 区块链入门

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hyperledger v1.0.5 區(qū)塊鏈入門(mén)

本文作者最近在找工作，有意向致電 13113668890

Mr.?Neo Chen?(陳景峯),?netkiller, BG7NYT

中國(guó)廣東省深圳市龍華新區(qū)民治街道溪山美地
518131
+86?13113668890

<netkiller@msn.com>

版權(quán) ? 2018 http://netkiller.github.io

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2018-02-06

摘要

本文采用碎片化寫(xiě)作，原文會(huì)不定期更新，請(qǐng)盡量閱讀原文。

http://www.netkiller.cn/journal/hyperledger.html

1. what-做什么
2. how-怎么做
- 2.1. 依賴(lài)工具
- 2.2. 安裝Docker
- 2.3. 安裝 Node.js 環(huán)境
- 2.4. 安裝 hyperledger 1.0.4
- 2.5. 手工安裝 hyperledger v 1.0.5 開(kāi)發(fā)環(huán)境
  - 2.5.1. 登錄 docker
  - 2.5.2. Docker 安裝
  - 2.5.3. 編譯安裝
- 2.6. 啟動(dòng) docker 虛擬機(jī)
- 2.7. 管理 hyperledger
  - 2.7.1. CouchDB 管理界面
- 2.8. 部署 chaincode
  - 2.8.1. channel 管理
    - 2.8.1.1. 列出 channel
    - 2.8.1.2. 創(chuàng)建 Channel
    - 2.8.1.3. 加入 Channel
  - 2.8.2. 部署連
  - 2.8.3. 測(cè)試
3. fabric-samples
- 3.1. fabcar
  - 3.1.1. 智能合約
  - 3.1.2. 創(chuàng)建記錄
  - 3.1.3. 查詢(xún)單條記錄
  - 3.1.4. 修改汽車(chē)所有者
- 3.2. balance-transfer
4. Hyperledger Composer
5. Restful 接口
- 5.1. 注冊(cè)
- 5.2.?
6. Hyperledger Fabric Client SDK for Node.js
- 6.1. package.json
7. fabric-sdk-java
- 7.1. Maven
8. FAQ
- 8.1.?
- 8.2. 卸載 hyperledger 環(huán)境

1.?what-做什么

區(qū)塊鏈技術(shù)發(fā)展至今，形成了公有鏈、聯(lián)盟鏈和邦鏈三種種主流技術(shù)平臺(tái)。

公有鏈：面向大眾，用戶(hù)可以匿名參與，非常方便，賬本數(shù)據(jù)也公開(kāi)，加上強(qiáng)大的智能合約，因此公有鏈極大地促進(jìn)了區(qū)塊鏈概念和技術(shù)的普及，比如比特幣、Ethereum平臺(tái)等。

聯(lián)盟鏈：考慮到商業(yè)應(yīng)用對(duì)安全、隱私、監(jiān)管、審計(jì)、性能的需求，提高準(zhǔn)入門(mén)檻，增加了安全、隱私、可監(jiān)管審計(jì)等商業(yè)特性，是區(qū)塊鏈技術(shù)在商業(yè)領(lǐng)域的應(yīng)用探索。

邦鏈：暫時(shí)資料比較少。

概念

通道（ Channel ）：通道是構(gòu)建在 Hyperledger Fabric 區(qū)塊鏈網(wǎng)絡(luò)上的私有區(qū)塊鏈，實(shí)現(xiàn)了數(shù)據(jù)的隔離和保密。通道中的 Chaincode 和交易只有加入該通道的節(jié)點(diǎn)（ Peer ）可見(jiàn)。同一個(gè)節(jié)點(diǎn)可以加入多個(gè)通道，并為每個(gè)通道內(nèi)容維護(hù)一個(gè)賬本。每一個(gè)通道即為一條邏輯上的區(qū)塊鏈。可以按照業(yè)務(wù)來(lái)劃分通道，也可以按照行政職能和隱私策略來(lái)劃分通道。

節(jié)點(diǎn)（ Peer ）：維護(hù)賬本的網(wǎng)絡(luò)節(jié)點(diǎn)，通常區(qū)塊鏈網(wǎng)絡(luò)架構(gòu)中存在多種角色，如 endorser 和 committer 。

排序服務(wù)或共識(shí)服務(wù)（ Order Services ）：提供排序服務(wù)或共識(shí)服務(wù)的網(wǎng)絡(luò)節(jié)點(diǎn)，完成交易的排序和區(qū)塊打包等工作，支持可插拔的共識(shí)組件，當(dāng)前生產(chǎn)環(huán)境下使用 Kafka 進(jìn)行交易排序。

分布式賬本（ Distribute Ledger ）：由網(wǎng)絡(luò)中若干去中心化節(jié)點(diǎn)共同維護(hù)的數(shù)據(jù)賬本。

組織（ Org ）：聯(lián)盟鏈中按照訪(fǎng)問(wèn)和使用賬本的網(wǎng)絡(luò)節(jié)點(diǎn)，一個(gè)聯(lián)盟（或者一個(gè)區(qū)塊鏈網(wǎng)絡(luò)）有多個(gè)組織（成員），一個(gè)組織內(nèi)可以有多個(gè)節(jié)點(diǎn)（ Peer ），每個(gè)節(jié)點(diǎn)參與賬本和世界狀態(tài)維護(hù)。

智能合約（ Smart Contract ）：根據(jù)特定條件自動(dòng)執(zhí)行的合約程序。智能合約是區(qū)塊鏈的重要特征，是用戶(hù)與區(qū)塊鏈進(jìn)行交互，利用區(qū)塊鏈實(shí)現(xiàn)業(yè)務(wù)邏輯的重要途徑。

鏈碼（ Chaincode ）：鏈碼是 Hyperledger Fabric 對(duì)智能合約的一種實(shí)現(xiàn)方式，是運(yùn)行于 Hyperledger Fabric 網(wǎng)絡(luò)之上一段應(yīng)用程序代碼，也是用戶(hù)與 Hyperledger Fabric 交互的唯一途徑。

鏈（ Chain ）：一個(gè)鏈即是一個(gè)由若干區(qū)塊通過(guò)特定指向鏈接、摘要算法或加密算法錨定組成的數(shù)據(jù)集合。

2.?how-怎么做

+---------------------------------+ | SDK | +---------------------------------+ | golang | nodejs | python | java | +---------------------------------+ |V +---------------------------------+ | fabric-ca : | +---------------------------------+| | +-------------------+ +-------------------+ | Peer | | Peer | +-------------------+ +-------------------+ | |V V +-------------------+ +-------------------+ | Orderer | | Orderer | +-------------------+ +-------------------+| |+-------------------+| Couchdb |+-------------------+

2.1.?依賴(lài)工具

yum -y install epel-release yum install -y git yum install -y golang

2.2.?安裝Docker

curl -s https://raw.githubusercontent.com/oscm/shell/master/virtualization/docker/docker.centos7.ce.sh | bash curl -s https://raw.githubusercontent.com/oscm/shell/master/virtualization/docker/registry-mirror.sh | bash or curl -fsSL https://get.docker.com/ | sh 創(chuàng)建2個(gè)docker網(wǎng)絡(luò),如下： docker network create fabric_noops docker network create fabric_pbft

安裝 docker-compose

curl -s https://raw.githubusercontent.com/oscm/shell/master/virtualization/docker/docker-compose.sh | bash

2.3.?安裝 Node.js 環(huán)境

yum install -y nodejs npm install

2.4.?安裝 hyperledger 1.0.4

運(yùn)行后 hyperledger 相關(guān)鏡像被安裝到 Docker 中

cd /usr/local/src curl -s https://raw.githubusercontent.com/hyperledger/fabric/release/scripts/bootstrap-1.0.4.sh | bash

由于上面腳本會(huì)安裝所有節(jié)點(diǎn)，速度較慢，作者建議你參考下一章節(jié)，手工安裝所需最低配置節(jié)點(diǎn)。

2.5.?手工安裝 hyperledger v 1.0.5 開(kāi)發(fā)環(huán)境

對(duì)于開(kāi)發(fā)環(huán)境，最小化的環(huán)境，包括 1 個(gè) peer 節(jié)點(diǎn)、1 個(gè) Orderer 節(jié)點(diǎn)、1 個(gè) CA 節(jié)點(diǎn)。

準(zhǔn)備一個(gè)服務(wù)器或者虛擬機(jī)，安裝 CentOS 操作系統(tǒng)。

如果你是在已有的Docker上安裝，建議你刪除所有容器后在安裝。以免出現(xiàn)沖突等情況。

docker stop $(docker ps -q) && docker rm $(docker ps -aq)

2.5.1.?登錄 docker

[root@localhost ~]# docker login Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one. Username: netkiller Password: Login Succeeded

2.5.2.?Docker 安裝

docker pull hyperledger/fabric-baseimage:latest \&& docker pull hyperledger/fabric-membersrvc:latest \&& docker pull hyperledger/fabric-peer:latest \&& docker pull hyperledger/fabric-orderer:latest \&& docker pull hyperledger/fabric-ca:latest \&& docker pull hyperledger/blockchain-explorer:latest

安裝會(huì)出現(xiàn)下面問(wèn)題

[root@localhost ~]# docker search fabric-peer | grep hyperledger/fabric-peer hyperledger/fabric-peer Fabric Peer docker image for Hyperledger Pro… 69[root@localhost ~]# docker pull hyperledger/fabric-peer:latest Error response from daemon: manifest for hyperledger/fabric-peer:latest not found

可以 search 到的鏡像 pull 不了，原因是 fabric-peer:latest，latest 不存在，你需要指定版本號(hào)。

docker pull hyperledger/fabric-membersrvc:latest \ && docker pull hyperledger/fabric-peer:x86_64-1.0.5 \ && docker pull hyperledger/fabric-orderer:x86_64-1.0.5 \ && docker pull hyperledger/fabric-couchdb:x86_64-1.0.5 \ && docker pull hyperledger/fabric-ca:x86_64-1.0.5 \ && docker pull hyperledger/fabric-tools:x86_64-1.0.5docker tag hyperledger/fabric-peer:x86_64-1.0.5 hyperledger/fabric-peer \ && docker tag hyperledger/fabric-orderer:x86_64-1.0.5 hyperledger/fabric-orderer \ && docker tag hyperledger/fabric-couchdb:x86_64-1.0.5 hyperledger/fabric-couchdb \ && docker tag hyperledger/fabric-ca:x86_64-1.0.5 hyperledger/fabric-ca \ && docker tag hyperledger/fabric-tools:x86_64-1.0.5 hyperledger/fabric-tools

查看鏡像

[root@localhost src]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE hyperledger/fabric-orderer latest 368c78b6f03b 2 months ago 151MB hyperledger/fabric-orderer x86_64-1.0.5 368c78b6f03b 2 months ago 151MB hyperledger/fabric-peer latest c2ab022f0bdb 2 months ago 154MB hyperledger/fabric-peer x86_64-1.0.5 c2ab022f0bdb 2 months ago 154MB hyperledger/fabric-membersrvc latest b3654d32e4f9 15 months ago 1.42GB

2.5.3.?編譯安裝

git config --global core.autocrlf false $ git clone https://github.com/hyperledger/fabric.git $ make docker $ git clone https://github.com/hyperledger/fabric-ca.git $ make docker cd fabric/devenv vagrant box add hyperledger/fabric-baseimage centos7.box vagrant upyum -y install epel-release yum -y install git yum -y install golang yum -y install python-pip pip install --upgrade backports.ssl_match_hostname pip install docker-composedocker-compose -version

2.6.?啟動(dòng) docker 虛擬機(jī)

這里我們最小化啟動(dòng)，需要四個(gè)節(jié)點(diǎn)，分別是 ca, peer, order, couchdb。

創(chuàng)建文件 docker-compose.yml

[root@localhost ~]# mkdir -p docker [root@localhost ~]# cd docker [root@localhost docker]# vim docker-compose.yml # # Copyright IBM Corp All Rights Reserved # # SPDX-License-Identifier: Apache-2.0 # version: '2'networks:basic:services:ca.example.com:image: hyperledger/fabric-caenvironment:- FABRIC_CA_HOME=/etc/hyperledger/fabric-ca-server- FABRIC_CA_SERVER_CA_NAME=ca.example.com- FABRIC_CA_SERVER_CA_CERTFILE=/etc/hyperledger/fabric-ca-server-config/ca.org1.example.com-cert.pem- FABRIC_CA_SERVER_CA_KEYFILE=/etc/hyperledger/fabric-ca-server-config/4239aa0dcd76daeeb8ba0cda701851d14504d31aad1b2ddddbac6a57365e497c_skports:- "7054:7054"command: sh -c 'fabric-ca-server start -b admin:adminpw -d'volumes:- ./crypto-config/peerOrganizations/org1.example.com/ca/:/etc/hyperledger/fabric-ca-server-configcontainer_name: ca.example.comnetworks:- basicorderer.example.com:container_name: orderer.example.comimage: hyperledger/fabric-ordererenvironment:- ORDERER_GENERAL_LOGLEVEL=debug- ORDERER_GENERAL_LISTENADDRESS=0.0.0.0- ORDERER_GENERAL_GENESISMETHOD=file- ORDERER_GENERAL_GENESISFILE=/etc/hyperledger/configtx/genesis.block- ORDERER_GENERAL_LOCALMSPID=OrdererMSP- ORDERER_GENERAL_LOCALMSPDIR=/etc/hyperledger/msp/orderer/mspworking_dir: /opt/gopath/src/github.com/hyperledger/fabric/orderercommand: ordererports:- 7050:7050volumes:- ./config/:/etc/hyperledger/configtx- ./crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/:/etc/hyperledger/msp/orderer- ./crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/:/etc/hyperledger/msp/peerOrg1networks:- basicpeer0.org1.example.com:container_name: peer0.org1.example.comimage: hyperledger/fabric-peerenvironment:- CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock- CORE_PEER_ID=peer0.org1.example.com- CORE_LOGGING_PEER=debug- CORE_CHAINCODE_LOGGING_LEVEL=DEBUG- CORE_PEER_LOCALMSPID=Org1MSP- CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/peer/- CORE_PEER_ADDRESS=peer0.org1.example.com:7051# # the following setting starts chaincode containers on the same# # bridge network as the peers# # https://docs.docker.com/compose/networking/- CORE_VM_DOCKER_HOSTCONFIG_NETWORKMODE=${COMPOSE_PROJECT_NAME}_basic- CORE_LEDGER_STATE_STATEDATABASE=CouchDB- CORE_LEDGER_STATE_COUCHDBCONFIG_COUCHDBADDRESS=couchdb:5984# The CORE_LEDGER_STATE_COUCHDBCONFIG_USERNAME and CORE_LEDGER_STATE_COUCHDBCONFIG_PASSWORD# provide the credentials for ledger to connect to CouchDB. The username and password must# match the username and password set for the associated CouchDB.- CORE_LEDGER_STATE_COUCHDBCONFIG_USERNAME=- CORE_LEDGER_STATE_COUCHDBCONFIG_PASSWORD=working_dir: /opt/gopath/src/github.com/hyperledger/fabriccommand: peer node start# command: peer node start --peer-chaincodedev=trueports:- 7051:7051- 7053:7053volumes:- /var/run/:/host/var/run/- ./crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/msp:/etc/hyperledger/msp/peer- ./crypto-config/peerOrganizations/org1.example.com/users:/etc/hyperledger/msp/users- ./config:/etc/hyperledger/configtxdepends_on:- orderer.example.com- couchdbnetworks:- basiccouchdb:container_name: couchdbimage: hyperledger/fabric-couchdb# Populate the COUCHDB_USER and COUCHDB_PASSWORD to set an admin user and password# for CouchDB. This will prevent CouchDB from operating in an "Admin Party" mode.environment:- COUCHDB_USER=- COUCHDB_PASSWORD=ports:- 5984:5984networks:- basiccli:container_name: cliimage: hyperledger/fabric-toolstty: trueenvironment:- GOPATH=/opt/gopath- CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock- CORE_LOGGING_LEVEL=DEBUG- CORE_PEER_ID=cli- CORE_PEER_ADDRESS=peer0.org1.example.com:7051- CORE_PEER_LOCALMSPID=Org1MSP- CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp- CORE_CHAINCODE_KEEPALIVE=10working_dir: /opt/gopath/src/github.com/hyperledger/fabric/peercommand: /bin/bashvolumes:- /var/run/:/host/var/run/- ./../chaincode/:/opt/gopath/src/github.com/- ./crypto-config:/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/networks:- basic#depends_on:# - orderer.example.com# - peer0.org1.example.com# - couchdb

啟動(dòng) Docker

[root@localhost docker]# docker-compose -f docker-compose.yml up -d ca.example.com orderer.example.com peer0.org1.example.com couchdb

查看進(jìn)程

[root@localhost docker]# docker-compose ps Name Command State Ports ---------------------------------------------------------------------------------------------------------------- ca.example.com sh -c fabric-ca-server sta ... Up 0.0.0.0:7054->7054/tcp cli /bin/bash Up couchdb tini -- /docker-entrypoint ... Up 4369/tcp, 0.0.0.0:5984->5984/tcp, 9100/tcp orderer.example.com orderer Up 0.0.0.0:7050->7050/tcp peer0.org1.example.com peer node start Up 0.0.0.0:7051->7051/tcp, 0.0.0.0:7053->7053/tcp ?

2.7.?管理 hyperledger

2.7.1.?CouchDB 管理界面

[root@localhost fabcar]# curl http://localhost:5984 {"couchdb":"Welcome","version":"2.0.0","vendor":{"name":"The Apache Software Foundation"}}

http://localhost:5984/_utils/

2.8.?部署 chaincode

2.8.1.?channel 管理

Hyperledger Fabric Channel 可以理解為 vlan （交換機(jī)術(shù)語(yǔ)）用來(lái)實(shí)現(xiàn)區(qū)塊隔離。

2.8.1.1.?列出 channel

root@595ec455c0ff:/opt/gopath/src/github.com/hyperledger/fabric# peer channel list 2018-02-07 03:24:41.151 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP 2018-02-07 03:24:41.152 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity 2018-02-07 03:24:41.154 UTC [channelCmd] InitCmdFactory -> INFO 003 Endorser and orderer connections initialized 2018-02-07 03:24:41.155 UTC [msp/identity] Sign -> DEBU 004 Sign: plaintext: 0A85070A5B08031A0B08F9E2E9D30510...631A0D0A0B4765744368616E6E656C73 2018-02-07 03:24:41.156 UTC [msp/identity] Sign -> DEBU 005 Sign: digest: 238CBAB61A0524954DC3C511588EB8FC1F886E636A8800131EBE16FB95FB0C9A 2018-02-07 03:24:41.167 UTC [channelCmd] list -> INFO 006 Channels peers has joined to: 2018-02-07 03:24:41.167 UTC [channelCmd] list -> INFO 007 mychannel 2018-02-07 03:24:41.167 UTC [main] main -> INFO 008 Exiting.....

2.8.1.2.?創(chuàng)建 Channel

CORE_PEER_LOCALMSPID=Org1MSP CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin@org1.example.com/msp peer channel create -o orderer.example.com:7050 -c mychannel -f /etc/hyperledger/configtx/channel.tx

2.8.1.3.?加入 Channel

CORE_PEER_LOCALMSPID=Org1MSP CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin@org1.example.com/msp peer0.org1.example.com peer channel join -b mychannel.block

2.8.2.?部署連

[root@localhost docker]# docker-compose exec peer0.org1.example.com bash root@dcb09db1cbc8:/go/src/github.com/hyperledger/fabric#

安裝合約

CORE_PEER_LOCALMSPID=Org1MSP CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp peer chaincode install -n fabcar -v 1.0 -p github.com/fabcar

實(shí)例化合約

初始化合約

2.8.3.?測(cè)試

root@595ec455c0ff:/opt/gopath/src/github.com/hyperledger/fabric# peer chaincode invoke -o orderer.example.com:7050 -C mychannel -n fabcar -c '{"function":"queryCar","Args":["CAR9"]}' 2018-02-07 04:44:03.451 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP 2018-02-07 04:44:03.451 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity 2018-02-07 04:44:03.454 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 003 Using default escc 2018-02-07 04:44:03.455 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 004 Using default vscc 2018-02-07 04:44:03.456 UTC [msp/identity] Sign -> DEBU 005 Sign: plaintext: 0A97070A6908031A0C089388EAD30510...0A0871756572794361720A0443415239 2018-02-07 04:44:03.456 UTC [msp/identity] Sign -> DEBU 006 Sign: digest: 28C28E7387383CC89E298B29932853964A5D26E4AA358C1242D62ACCAF121BFB 2018-02-07 04:44:03.495 UTC [msp/identity] Sign -> DEBU 007 Sign: plaintext: 0A97070A6908031A0C089388EAD30510...F7BBABB41F274432D5C6985A78D8E949 2018-02-07 04:44:03.495 UTC [msp/identity] Sign -> DEBU 008 Sign: digest: BC6559CACFFC49B5B053B050B7634D1D4D920CAC3F228ED6F38EBFF6A760D7C1 2018-02-07 04:44:03.504 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> DEBU 009 ESCC invoke result: version:1 response:<status:200 message:"OK" payload:"{\"colour\":\"brown\",\"make\":\"Holden\",\"model\":\"Barina\",\"owner\":\"Shotaro\"}" > payload:"\n \245\036\265\326\362rL\341\234\326\267\3452\360\277]\220\017C\212\206\311\034\344P\022\034(\364\026-_\022\215\001\n0\022\026\n\006fabcar\022\014\n\n\n\004CAR9\022\002\010\005\022\026\n\004lscc\022\016\n\014\n\006fabcar\022\002\010\001\032J\010\310\001\032E{\"colour\":\"brown\",\"make\":\"Holden\",\"model\":\"Barina\",\"owner\":\"Shotaro\"}\"\r\022\006fabcar\032\0031.0" endorsement:<endorser:"\n\007Org1MSP\022\200\006-----BEGIN -----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\ntvwzNUS1U0hEqIaDeo4=\n-----END -----\n" signature:"0E\002!\000\2657\267\025<v\010\014sC\261U\207H\251\021KJw#\2322C\031<\346=\207\222\343\263\025\002 So\272|v\027xM\026\225\003bx\312\277n\367\273\253\264\037'D2\325\306\230Zx\330\351I" > 2018-02-07 04:44:03.509 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 00a Chaincode invoke successful. result: status:200 payload:"{\"colour\":\"brown\",\"make\":\"Holden\",\"model\":\"Barina\",\"owner\":\"Shotaro\"}" 2018-02-07 04:44:03.510 UTC [main] main -> INFO 00b Exiting.....

3.?fabric-samples

安裝 fabric-samples

git clone https://github.com/hyperledger/fabric-samples.git cd fabric-samples

fabric-samples 包含了很多例子，我們只運(yùn)行幾個(gè)常用的例子。

3.1.?fabcar

cd fabric-samples/fabcar

啟動(dòng)

[root@localhost fabcar]# ./startFabric.sh # don't rewrite paths for Windows Git Bash users export MSYS_NO_PATHCONV=1docker-compose -f docker-compose.yml down Stopping peer0.org1.example.com ... done Stopping couchdb ... done Stopping orderer.example.com ... done Stopping ca.example.com ... done Removing peer0.org1.example.com ... done Removing couchdb ... done Removing orderer.example.com ... done Removing ca.example.com ... done Removing network net_basicdocker-compose -f docker-compose.yml up -d ca.example.com orderer.example.com peer0.org1.example.com couchdb Creating network "net_basic" with the default driver Creating couchdb Creating orderer.example.com Creating ca.example.com Creating peer0.org1.example.com# wait for Hyperledger Fabric to start # incase of errors when running later commands, issue export FABRIC_START_TIMEOUT=<larger number> export FABRIC_START_TIMEOUT=10 #echo ${FABRIC_START_TIMEOUT} sleep ${FABRIC_START_TIMEOUT}# Create the channel docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin@org1.example.com/msp" peer0.org1.example.com peer channel create -o orderer.example.com:7050 -c mychannel -f /etc/hyperledger/configtx/channel.tx 2018-02-06 04:27:38.822 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP 2018-02-06 04:27:38.822 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity 2018-02-06 04:27:38.825 UTC [channelCmd] InitCmdFactory -> INFO 003 Endorser and orderer connections initialized 2018-02-06 04:27:38.825 UTC [msp] GetLocalMSP -> DEBU 004 Returning existing local MSP 2018-02-06 04:27:38.825 UTC [msp] GetDefaultSigningIdentity -> DEBU 005 Obtaining default signing identity 2018-02-06 04:27:38.826 UTC [msp] GetLocalMSP -> DEBU 006 Returning existing local MSP 2018-02-06 04:27:38.826 UTC [msp] GetDefaultSigningIdentity -> DEBU 007 Obtaining default signing identity 2018-02-06 04:27:38.826 UTC [msp/identity] Sign -> DEBU 008 Sign: plaintext: 0A88060A074F7267314D535012FC052D...53616D706C65436F6E736F727469756D 2018-02-06 04:27:38.826 UTC [msp/identity] Sign -> DEBU 009 Sign: digest: D2F2DB3135CE892465FB7B6C2C89A6C566EC6E0081034AF00AF62014ED098E10 2018-02-06 04:27:38.827 UTC [msp] GetLocalMSP -> DEBU 00a Returning existing local MSP 2018-02-06 04:27:38.827 UTC [msp] GetDefaultSigningIdentity -> DEBU 00b Obtaining default signing identity 2018-02-06 04:27:38.827 UTC [msp] GetLocalMSP -> DEBU 00c Returning existing local MSP 2018-02-06 04:27:38.827 UTC [msp] GetDefaultSigningIdentity -> DEBU 00d Obtaining default signing identity 2018-02-06 04:27:38.827 UTC [msp/identity] Sign -> DEBU 00e Sign: plaintext: 0ABF060A1508021A0608BADDE4D30522...4447D0A2A449E39255165BEE40760F3E 2018-02-06 04:27:38.827 UTC [msp/identity] Sign -> DEBU 00f Sign: digest: BE32EAB1C6CE6A2C7F79FED4D1C646702EE07A3D64014B5EE2B77F8B35E9CF5F 2018-02-06 04:27:38.935 UTC [msp] GetLocalMSP -> DEBU 010 Returning existing local MSP 2018-02-06 04:27:38.935 UTC [msp] GetDefaultSigningIdentity -> DEBU 011 Obtaining default signing identity 2018-02-06 04:27:38.935 UTC [msp] GetLocalMSP -> DEBU 012 Returning existing local MSP 2018-02-06 04:27:38.935 UTC [msp] GetDefaultSigningIdentity -> DEBU 013 Obtaining default signing identity 2018-02-06 04:27:38.935 UTC [msp/identity] Sign -> DEBU 014 Sign: plaintext: 0ABF060A1508021A0608BADDE4D30522...96444BF5E3AA12080A021A0012021A00 2018-02-06 04:27:38.936 UTC [msp/identity] Sign -> DEBU 015 Sign: digest: 11D42E8978C507DC0C33304B81E089DB5DAB72967A153BD52932C5A4054C3D4B 2018-02-06 04:27:38.937 UTC [channelCmd] readBlock -> DEBU 016 Got status: &{NOT_FOUND} 2018-02-06 04:27:38.937 UTC [msp] GetLocalMSP -> DEBU 017 Returning existing local MSP 2018-02-06 04:27:38.937 UTC [msp] GetDefaultSigningIdentity -> DEBU 018 Obtaining default signing identity 2018-02-06 04:27:38.939 UTC [channelCmd] InitCmdFactory -> INFO 019 Endorser and orderer connections initialized 2018-02-06 04:27:39.139 UTC [msp] GetLocalMSP -> DEBU 01a Returning existing local MSP 2018-02-06 04:27:39.139 UTC [msp] GetDefaultSigningIdentity -> DEBU 01b Obtaining default signing identity 2018-02-06 04:27:39.140 UTC [msp] GetLocalMSP -> DEBU 01c Returning existing local MSP 2018-02-06 04:27:39.140 UTC [msp] GetDefaultSigningIdentity -> DEBU 01d Obtaining default signing identity 2018-02-06 04:27:39.140 UTC [msp/identity] Sign -> DEBU 01e Sign: plaintext: 0ABF060A1508021A0608BBDDE4D30522...75CF3E958E8612080A021A0012021A00 2018-02-06 04:27:39.140 UTC [msp/identity] Sign -> DEBU 01f Sign: digest: 26B8D88C16CF0DC0573F9BB9A69EC1BF1FEA8C12D052F832B3DB7B2A10D2CA6D 2018-02-06 04:27:39.145 UTC [channelCmd] readBlock -> DEBU 020 Received block: 0 2018-02-06 04:27:39.146 UTC [main] main -> INFO 021 Exiting..... # Join peer0.org1.example.com to the channel. docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/etc/hyperledger/msp/users/Admin@org1.example.com/msp" peer0.org1.example.com peer channel join -b mychannel.block 2018-02-06 04:27:39.465 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP 2018-02-06 04:27:39.465 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity 2018-02-06 04:27:39.467 UTC [channelCmd] InitCmdFactory -> INFO 003 Endorser and orderer connections initialized 2018-02-06 04:27:39.468 UTC [msp/identity] Sign -> DEBU 004 Sign: plaintext: 0A86070A5C08011A0C08BBDDE4D30510...2A0C0B6B1D4B1A080A000A000A000A00 2018-02-06 04:27:39.468 UTC [msp/identity] Sign -> DEBU 005 Sign: digest: 455E4221B3AE6DD1238BF5C8893970131846C096F1465D4CA89385AF3C7C0B2F 2018-02-06 04:27:39.991 UTC [channelCmd] executeJoin -> INFO 006 Peer joined the channel! 2018-02-06 04:27:39.991 UTC [main] main -> INFO 007 Exiting..... Creating cli 2018-02-06 04:27:46.123 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP 2018-02-06 04:27:46.123 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity 2018-02-06 04:27:46.123 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 003 Using default escc 2018-02-06 04:27:46.123 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 004 Using default vscc 2018-02-06 04:27:47.513 UTC [golang-platform] getCodeFromFS -> DEBU 005 getCodeFromFS github.com/fabcar 2018-02-06 04:27:48.448 UTC [golang-platform] func1 -> DEBU 006 Discarding GOROOT package bytes 2018-02-06 04:27:48.449 UTC [golang-platform] func1 -> DEBU 007 Discarding GOROOT package encoding/json 2018-02-06 04:27:48.449 UTC [golang-platform] func1 -> DEBU 008 Discarding GOROOT package fmt 2018-02-06 04:27:48.449 UTC [golang-platform] func1 -> DEBU 009 Discarding provided package github.com/hyperledger/fabric/core/chaincode/shim 2018-02-06 04:27:48.449 UTC [golang-platform] func1 -> DEBU 00a Discarding provided package github.com/hyperledger/fabric/protos/peer 2018-02-06 04:27:48.449 UTC [golang-platform] func1 -> DEBU 00b Discarding GOROOT package strconv 2018-02-06 04:27:48.449 UTC [golang-platform] GetDeploymentPayload -> DEBU 00c done 2018-02-06 04:27:48.458 UTC [msp/identity] Sign -> DEBU 00d Sign: plaintext: 0A86070A5C08031A0C08C4DDE4D30510...939FFF060000FFFF9C08DC0700200000 2018-02-06 04:27:48.459 UTC [msp/identity] Sign -> DEBU 00e Sign: digest: 881EE9535C8EC4371B72CE38BC52BD950864D1CA50F1F64B707EC7492B38AC75 2018-02-06 04:27:48.512 UTC [chaincodeCmd] install -> DEBU 00f Installed remotely response:<status:200 payload:"OK" > 2018-02-06 04:27:48.512 UTC [main] main -> INFO 010 Exiting..... 2018-02-06 04:27:48.845 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP 2018-02-06 04:27:48.845 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity 2018-02-06 04:27:48.847 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 003 Using default escc 2018-02-06 04:27:48.848 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 004 Using default vscc 2018-02-06 04:27:48.849 UTC [msp/identity] Sign -> DEBU 005 Sign: plaintext: 0A91070A6708031A0C08C4DDE4D30510...324D53500A04657363630A0476736363 2018-02-06 04:27:48.849 UTC [msp/identity] Sign -> DEBU 006 Sign: digest: 7279142B6DCADB92F178A42EB4812C9103108F2AEE8F40F8AD0125D3E13AEC25 2018-02-06 04:28:51.790 UTC [msp/identity] Sign -> DEBU 007 Sign: plaintext: 0A91070A6708031A0C08C4DDE4D30510...33975E7D10605FC261528FBDEEC0A9A8 2018-02-06 04:28:51.790 UTC [msp/identity] Sign -> DEBU 008 Sign: digest: 6A3D493ACD5E447FAD3D91C518CD60C45D0DB8E20D5DCFB70B45DA7572C666C0 2018-02-06 04:28:51.885 UTC [main] main -> INFO 009 Exiting..... 2018-02-06 04:29:02.974 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP 2018-02-06 04:29:02.974 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity 2018-02-06 04:29:02.976 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 003 Using default escc 2018-02-06 04:29:02.976 UTC [chaincodeCmd] checkChaincodeCmdParams -> INFO 004 Using default vscc 2018-02-06 04:29:02.977 UTC [msp/identity] Sign -> DEBU 005 Sign: plaintext: 0A93070A6908031A0C088EDEE4D30510...1A0E0A0A696E69744C65646765720A00 2018-02-06 04:29:02.977 UTC [msp/identity] Sign -> DEBU 006 Sign: digest: F5979DA908E3058B28762469FEECB498F506FB2A7D62F01ED56C5CCE3354D5CE 2018-02-06 04:29:03.103 UTC [msp/identity] Sign -> DEBU 007 Sign: plaintext: 0A93070A6908031A0C088EDEE4D30510...EEB1365266BC4EF15DDAB42DD4202559 2018-02-06 04:29:03.103 UTC [msp/identity] Sign -> DEBU 008 Sign: digest: 027F185369407246B34B7247E6B83E08078761FFA13C43F508CD7257BBF5BC7B 2018-02-06 04:29:03.113 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> DEBU 009 ESCC invoke result: version:1 response:<status:200 message:"OK" > payload:"\n e\350\256\026\2161o\374\224\311\210g\322\001\234\332Vt\026+\204\034\013\310;\371\234\353\030`:\360\022\267\006\n\240\006\022\205\006\n\006fabcar\022\372\005\032J\n\004CAR0\032B{\"make\":\"Toyota\",\"model\":\"Prius\",\"colour\":\"blue\",\"owner\":\"Tomoko\"}\032G\n\004CAR1\032?{\"make\":\"Ford\",\"model\":\"Mustang\",\"colour\":\"red\",\"owner\":\"Brad\"}\032N\n\004CAR2\032F{\"make\":\"Hyundai\",\"model\":\"Tucson\",\"colour\":\"green\",\"owner\":\"Jin Soo\"}\032N\n\004CAR3\032F{\"make\":\"Volkswagen\",\"model\":\"Passat\",\"colour\":\"yellow\",\"owner\":\"Max\"}\032G\n\004CAR4\032?{\"make\":\"Tesla\",\"model\":\"S\",\"colour\":\"black\",\"owner\":\"Adriana\"}\032K\n\004CAR5\032C{\"make\":\"Peugeot\",\"model\":\"205\",\"colour\":\"purple\",\"owner\":\"Michel\"}\032H\n\004CAR6\032@{\"make\":\"Chery\",\"model\":\"S22L\",\"colour\":\"white\",\"owner\":\"Aarav\"}\032H\n\004CAR7\032@{\"make\":\"Fiat\",\"model\":\"Punto\",\"colour\":\"violet\",\"owner\":\"Pari\"}\032J\n\004CAR8\032B{\"make\":\"Tata\",\"model\":\"Nano\",\"colour\":\"indigo\",\"owner\":\"Valeria\"}\032M\n\004CAR9\032E{\"make\":\"Holden\",\"model\":\"Barina\",\"colour\":\"brown\",\"owner\":\"Shotaro\"}\022\026\n\004lscc\022\016\n\014\n\006fabcar\022\002\010\001\032\003\010\310\001\"\r\022\006fabcar\032\0031.0" endorsement:<endorser:"\n\007Org1MSP\022\200\006-----BEGIN -----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\ntvwzNUS1U0hEqIaDeo4=\n-----END -----\n" signature:"0E\002!\000\271u\265\3621\223\255|\353h\003\364g\363\3474\310>\032\351\225\326\306z\356\324\013\366\235\334J\237\002 ^>\200AhmDWh\261\301\204Ye\346\345\356\2616Rf\274N\361]\332\264-\324 %Y" > 2018-02-06 04:29:03.113 UTC [chaincodeCmd] chaincodeInvokeOrQuery -> INFO 00a Chaincode invoke successful. result: status:200 2018-02-06 04:29:03.113 UTC [main] main -> INFO 00b Exiting.....Total setup execution time : 136 secs ...Start by installing required packages run 'npm install' Then run 'node enrollAdmin.js', then 'node registerUser'The 'node invoke.js' will fail until it has been updated with valid arguments The 'node query.js' may be run at anytime once the user has been registered

至此 hyperledger 開(kāi)發(fā)環(huán)境已經(jīng)啟動(dòng)完畢

node enrollAdmin.js node registerUser.js node invoke.js node query.js [root@localhost fabcar]# node enrollAdmin.jsStore path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded admin from persistence Assigned the admin user to the fabric client ::{"name":"admin","mspid":"Org1MSP","roles":null,"affiliation":"","enrollmentSecret":"","enrollment":{"signingIdentity":"9995fba0ac327e43983b07d09a50423de8cb510176484566abfce0cb86e5f594","identity":{"certificate":"-----BEGIN CERTIFICATE-----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\n3wmZ1lNNkAJmpRoes7cNxO/ak5Xy\n-----END CERTIFICATE-----\n"}}}[root@localhost fabcar]# node registerUser.js Store path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded admin from persistence Successfully registered user1 - secret:ZjzLwIaVjEAV Successfully enrolled member user "user1" User1 was successfully registered and enrolled and is ready to intreact with the fabric network[root@localhost fabcar]# node query.js Store path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded user1 from persistence Query has completed, checking results Response is [{"Key":"CAR0", "Record":{"colour":"blue","make":"Toyota","model":"Prius","owner":"Tomoko"}},{"Key":"CAR1", "Record":{"colour":"red","make":"Ford","model":"Mustang","owner":"Brad"}},{"Key":"CAR2", "Record":{"colour":"green","make":"Hyundai","model":"Tucson","owner":"Jin Soo"}},{"Key":"CAR3", "Record":{"colour":"yellow","make":"Volkswagen","model":"Passat","owner":"Max"}},{"Key":"CAR4", "Record":{"colour":"black","make":"Tesla","model":"S","owner":"Adriana"}},{"Key":"CAR5", "Record":{"colour":"purple","make":"Peugeot","model":"205","owner":"Michel"}},{"Key":"CAR6", "Record":{"colour":"white","make":"Chery","model":"S22L","owner":"Aarav"}},{"Key":"CAR7", "Record":{"colour":"violet","make":"Fiat","model":"Punto","owner":"Pari"}},{"Key":"CAR8", "Record":{"colour":"indigo","make":"Tata","model":"Nano","owner":"Valeria"}},{"Key":"CAR9", "Record":{"colour":"brown","make":"Holden","model":"Barina","owner":"Shotaro"}}]

invoke.js 腳本會(huì)出現(xiàn)下面錯(cuò)誤

[root@localhost fabcar]# node invoke.js Store path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded user1 from persistence Assigning transaction_id: 424c946e96d43005e4b815f56fa43bd58d1370404f6713b3ce267928d4499b78 error: [client-utils.js]: sendPeersProposal - Promise is rejected: Error: 2 UNKNOWN: chaincode error (status: 500, message: Invalid Smart Contract function name.)at new createStatusError (/root/fabric-samples/fabcar/node_modules/grpc/src/client.js:65:15)at /root/fabric-samples/fabcar/node_modules/grpc/src/client.js:568:15 Transaction proposal was bad Failed to send Proposal or receive valid response. Response null or status is not 200. exiting... Failed to invoke successfully :: Error: Failed to send Proposal or receive valid response. Response null or status is not 200. exiting...

這里出錯(cuò)，是因?yàn)闆](méi)有提供相關(guān)的調(diào)用方法和參數(shù)，暫時(shí)不去糾結(jié)，繼續(xù)做實(shí)驗(yàn)。

3.1.1.?智能合約

[root@localhost fabric-samples]# cat chaincode/fabcar/fabcar.go /** Licensed to the Apache Software Foundation (ASF) under one* or more contributor license agreements. See the NOTICE file* distributed with this work for additional information* regarding copyright ownership. The ASF licenses this file* to you under the Apache License, Version 2.0 (the* "License"); you may not use this file except in compliance* with the License. You may obtain a copy of the License at** http://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing,* software distributed under the License is distributed on an* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY* KIND, either express or implied. See the License for the* specific language governing permissions and limitations* under the License.*//** The sample smart contract for documentation topic:* Writing Your First Blockchain Application*/package main/* Imports* 4 utility libraries for formatting, handling bytes, reading and writing JSON, and string manipulation* 2 specific Hyperledger Fabric specific libraries for Smart Contracts*/ import ("bytes""encoding/json""fmt""strconv""github.com/hyperledger/fabric/core/chaincode/shim"sc "github.com/hyperledger/fabric/protos/peer" )// Define the Smart Contract structure type SmartContract struct { }// Define the car structure, with 4 properties. Structure tags are used by encoding/json library type Car struct {Make string `json:"make"`Model string `json:"model"`Colour string `json:"colour"`Owner string `json:"owner"` }/** The Init method is called when the Smart Contract "fabcar" is instantiated by the blockchain network* Best practice is to have any Ledger initialization in separate function -- see initLedger()*/ func (s *SmartContract) Init(APIstub shim.ChaincodeStubInterface) sc.Response {return shim.Success(nil) }/** The Invoke method is called as a result of an application request to run the Smart Contract "fabcar"* The calling application program has also specified the particular smart contract function to be called, with arguments*/ func (s *SmartContract) Invoke(APIstub shim.ChaincodeStubInterface) sc.Response {// Retrieve the requested Smart Contract function and argumentsfunction, args := APIstub.GetFunctionAndParameters()// Route to the appropriate handler function to interact with the ledger appropriatelyif function == "queryCar" {return s.queryCar(APIstub, args)} else if function == "initLedger" {return s.initLedger(APIstub)} else if function == "createCar" {return s.createCar(APIstub, args)} else if function == "queryAllCars" {return s.queryAllCars(APIstub)} else if function == "changeCarOwner" {return s.changeCarOwner(APIstub, args)}return shim.Error("Invalid Smart Contract function name.") }func (s *SmartContract) queryCar(APIstub shim.ChaincodeStubInterface, args []string) sc.Response {if len(args) != 1 {return shim.Error("Incorrect number of arguments. Expecting 1")}carAsBytes, _ := APIstub.GetState(args[0])return shim.Success(carAsBytes) }func (s *SmartContract) initLedger(APIstub shim.ChaincodeStubInterface) sc.Response {cars := []Car{Car{Make: "Toyota", Model: "Prius", Colour: "blue", Owner: "Tomoko"},Car{Make: "Ford", Model: "Mustang", Colour: "red", Owner: "Brad"},Car{Make: "Hyundai", Model: "Tucson", Colour: "green", Owner: "Jin Soo"},Car{Make: "Volkswagen", Model: "Passat", Colour: "yellow", Owner: "Max"},Car{Make: "Tesla", Model: "S", Colour: "black", Owner: "Adriana"},Car{Make: "Peugeot", Model: "205", Colour: "purple", Owner: "Michel"},Car{Make: "Chery", Model: "S22L", Colour: "white", Owner: "Aarav"},Car{Make: "Fiat", Model: "Punto", Colour: "violet", Owner: "Pari"},Car{Make: "Tata", Model: "Nano", Colour: "indigo", Owner: "Valeria"},Car{Make: "Holden", Model: "Barina", Colour: "brown", Owner: "Shotaro"},}i := 0for i < len(cars) {fmt.Println("i is ", i)carAsBytes, _ := json.Marshal(cars[i])APIstub.PutState("CAR"+strconv.Itoa(i), carAsBytes)fmt.Println("Added", cars[i])i = i + 1}return shim.Success(nil) }func (s *SmartContract) createCar(APIstub shim.ChaincodeStubInterface, args []string) sc.Response {if len(args) != 5 {return shim.Error("Incorrect number of arguments. Expecting 5")}var car = Car{Make: args[1], Model: args[2], Colour: args[3], Owner: args[4]}carAsBytes, _ := json.Marshal(car)APIstub.PutState(args[0], carAsBytes)return shim.Success(nil) }func (s *SmartContract) queryAllCars(APIstub shim.ChaincodeStubInterface) sc.Response {startKey := "CAR0"endKey := "CAR999"resultsIterator, err := APIstub.GetStateByRange(startKey, endKey)if err != nil {return shim.Error(err.Error())}defer resultsIterator.Close()// buffer is a JSON array containing QueryResultsvar buffer bytes.Bufferbuffer.WriteString("[")bArrayMemberAlreadyWritten := falsefor resultsIterator.HasNext() {queryResponse, err := resultsIterator.Next()if err != nil {return shim.Error(err.Error())}// Add a comma before array members, suppress it for the first array memberif bArrayMemberAlreadyWritten == true {buffer.WriteString(",")}buffer.WriteString("{\"Key\":")buffer.WriteString("\"")buffer.WriteString(queryResponse.Key)buffer.WriteString("\"")buffer.WriteString(", \"Record\":")// Record is a JSON object, so we write as-isbuffer.WriteString(string(queryResponse.Value))buffer.WriteString("}")bArrayMemberAlreadyWritten = true}buffer.WriteString("]")fmt.Printf("- queryAllCars:\n%s\n", buffer.String())return shim.Success(buffer.Bytes()) }func (s *SmartContract) changeCarOwner(APIstub shim.ChaincodeStubInterface, args []string) sc.Response {if len(args) != 2 {return shim.Error("Incorrect number of arguments. Expecting 2")}carAsBytes, _ := APIstub.GetState(args[0])car := Car{}json.Unmarshal(carAsBytes, &car)car.Owner = args[1]carAsBytes, _ = json.Marshal(car)APIstub.PutState(args[0], carAsBytes)return shim.Success(nil) }// The main function is only relevant in unit test mode. Only included here for completeness. func main() {// Create a new Smart Contracterr := shim.Start(new(SmartContract))if err != nil {fmt.Printf("Error creating new Smart Contract: %s", err)} }

3.1.2.?創(chuàng)建記錄

[root@localhost fabcar]# cp invoke.js createCar.js [root@localhost fabcar]# vim createCar.js var request = {//targets: let default to the peer assigned to the clientchaincodeId: 'fabcar',fcn: '',args: [''],chainId: 'mychannel',txId: tx_id};

改為

var request = {//targets: let default to the peer assigned to the clientchaincodeId: 'fabcar',fcn: 'createCar',args: ['CAR10', 'Chevy', 'Volt', 'Red', 'Nick'],chainId: 'mychannel',txId: tx_id};

運(yùn)行結(jié)果

[root@localhost fabcar]# node createCar.js Store path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded user1 from persistence Assigning transaction_id: 907d35d7c5debf952f28135b2c341797acdb7ef1f1389607fb04891a27e8ba19 Transaction proposal was good Successfully sent Proposal and received ProposalResponse: Status - 200, message - "OK" info: [EventHub.js]: _connect - options {} The transaction has been committed on peer localhost:7053 Send transaction promise and event listener promise have completed Successfully sent transaction to the orderer. Successfully committed the change to the ledger by the peer

3.1.3.?查詢(xún)單條記錄

查找 CAR5 這條記錄的數(shù)據(jù)。

[root@localhost fabcar]# node queryOne.js Store path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded user1 from persistence Query has completed, checking results Response is {"colour":"purple","make":"Peugeot","model":"205","owner":"Michel"} [root@localhost fabcar]# cat queryOne.js 'use strict'; /* * Copyright IBM Corp All Rights Reserved * * SPDX-License-Identifier: Apache-2.0 */ /** Chaincode query*/var Fabric_Client = require('fabric-client'); var path = require('path'); var util = require('util'); var os = require('os');// var fabric_client = new Fabric_Client();// setup the fabric network var channel = fabric_client.newChannel('mychannel'); var peer = fabric_client.newPeer('grpc://localhost:7051'); channel.addPeer(peer);// var member_user = null; var store_path = path.join(__dirname, 'hfc-key-store'); console.log('Store path:'+store_path); var tx_id = null;// create the key value store as defined in the fabric-client/config/default.json 'key-value-store' setting Fabric_Client.newDefaultKeyValueStore({ path: store_path }).then((state_store) => {// assign the store to the fabric clientfabric_client.setStateStore(state_store);var crypto_suite = Fabric_Client.newCryptoSuite();// use the same location for the state store (where the users' certificate are kept)// and the crypto store (where the users' keys are kept)var crypto_store = Fabric_Client.newCryptoKeyStore({path: store_path});crypto_suite.setCryptoKeyStore(crypto_store);fabric_client.setCryptoSuite(crypto_suite);// get the enrolled user from persistence, this user will sign all requestsreturn fabric_client.getUserContext('user1', true); }).then((user_from_store) => {if (user_from_store && user_from_store.isEnrolled()) {console.log('Successfully loaded user1 from persistence');member_user = user_from_store;} else {throw new Error('Failed to get user1.... run registerUser.js');}// queryCar chaincode function - requires 1 argument, ex: args: ['CAR4'],// queryAllCars chaincode function - requires no arguments , ex: args: [''],const request = {//targets : --- letting this default to the peers assigned to the channelchaincodeId: 'fabcar',fcn: 'queryCar',args: ['CAR10']};// send the query proposal to the peerreturn channel.queryByChaincode(request); }).then((query_responses) => {console.log("Query has completed, checking results");// query_responses could have more than one results if there multiple peers were used as targetsif (query_responses && query_responses.length == 1) {if (query_responses[0] instanceof Error) {console.error("error from query = ", query_responses[0]);} else {console.log("Response is ", query_responses[0].toString());}} else {console.log("No payloads were returned from query");} }).catch((err) => {console.error('Failed to query successfully :: ' + err); });

運(yùn)行結(jié)果

3.1.4.?修改汽車(chē)所有者

[root@localhost fabcar]# cp invoke.js changeCarOwner.js [root@localhost fabcar]# vim changeCarOwner.js var request = {//targets: let default to the peer assigned to the clientchaincodeId: 'fabcar',fcn: '',args: [''],chainId: 'mychannel',txId: tx_id};

修改為

var request = {//targets: let default to the peer assigned to the clientchaincodeId: 'fabcar',fcn: 'changeCarOwner',args: ['CAR10', 'Neo'],chainId: 'mychannel',txId: tx_id};

運(yùn)行結(jié)果

[root@localhost fabcar]# node changeCarOwner.js Store path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded user1 from persistence Assigning transaction_id: b183a7bac6161ff7c7e9974e20bb1a72b2ac5f11ab698a2ae4f63cfdbc33a735 Transaction proposal was good Successfully sent Proposal and received ProposalResponse: Status - 200, message - "OK" info: [EventHub.js]: _connect - options {} The transaction has been committed on peer localhost:7053 Send transaction promise and event listener promise have completed Successfully sent transaction to the orderer. Successfully committed the change to the ledger by the peer[root@localhost fabcar]# node queryOne.js Store path:/root/fabric-samples/fabcar/hfc-key-store Successfully loaded user1 from persistence Query has completed, checking results Response is {"colour":"Red","make":"Chevy","model":"Volt","owner":"Neo"}

現(xiàn)在我們可以看到所有者已經(jīng)改為 Neo

3.2.?balance-transfer

[root@localhost fabric-samples]# cd balance-transfer/ [root@localhost balance-transfer]# ./runApp.sh Stopping peer0.org1.example.com ... done Stopping peer0.org2.example.com ... done Stopping peer1.org2.example.com ... done Stopping peer1.org1.example.com ... done Stopping ca_peerOrg1 ... done Stopping orderer.example.com ... done Stopping ca_peerOrg2 ... done Removing peer0.org1.example.com ... done Removing peer0.org2.example.com ... done Removing peer1.org2.example.com ... done Removing peer1.org1.example.com ... done Removing ca_peerOrg1 ... done Removing orderer.example.com ... done Removing ca_peerOrg2 ... done Removing network artifacts_default========== No containers available for deletion ==================== No images available for deletion ===========Creating network "artifacts_default" with the default driver Creating ca_peerOrg2 Creating orderer.example.com Creating ca_peerOrg1 Creating peer1.org2.example.com Creating peer0.org2.example.com Creating peer0.org1.example.com Creating peer1.org1.example.com /root/fabric-samples/balance-transfer============== node modules installed already =============[2018-02-06 09:14:54.916] [DEBUG] Helper - [crypto_ecdsa_aes]: constructor, keySize: 256 [2018-02-06 09:14:54.921] [DEBUG] Helper - [crypto_ecdsa_aes]: Hash algorithm: SHA2, hash output size: 256 [2018-02-06 09:14:55.046] [DEBUG] Helper - [utils.CryptoKeyStore]: CryptoKeyStore, constructor - start [2018-02-06 09:14:55.048] [DEBUG] Helper - [utils.CryptoKeyStore]: constructor, no super class specified, using config: fabric-client/lib/impl/FileKeyValueStore.js [2018-02-06 09:14:55.056] [DEBUG] Helper - [crypto_ecdsa_aes]: constructor, keySize: 256 [2018-02-06 09:14:55.056] [DEBUG] Helper - [crypto_ecdsa_aes]: Hash algorithm: SHA2, hash output size: 256 [2018-02-06 09:14:55.057] [DEBUG] Helper - [utils.CryptoKeyStore]: CryptoKeyStore, constructor - start [2018-02-06 09:14:55.057] [DEBUG] Helper - [utils.CryptoKeyStore]: constructor, no super class specified, using config: fabric-client/lib/impl/FileKeyValueStore.js [2018-02-06 09:14:55.082] [INFO] SampleWebApp - ****************** SERVER STARTED ************************ [2018-02-06 09:14:55.082] [INFO] SampleWebApp - ************** http://localhost:4000 ******************

安裝 jq 工具

yum install -y jq

API 測(cè)試結(jié)果

[root@localhost balance-transfer]# ./testAPIs.sh POST request Enroll on Org1 ...{"success":true,"secret":"uXlJIPvBgLbh","message":"Jim enrolled Successfully","token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MTc5NjMwMDUsInVzZXJuYW1lIjoiSmltIiwib3JnTmFtZSI6Im9yZzEiLCJpYXQiOjE1MTc5MjcwMDV9.pBqwAVac32NIA_x5S163h9_lRfIHMx4shX05D0geO5k"}ORG1 token is eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MTc5NjMwMDUsInVzZXJuYW1lIjoiSmltIiwib3JnTmFtZSI6Im9yZzEiLCJpYXQiOjE1MTc5MjcwMDV9.pBqwAVac32NIA_x5S163h9_lRfIHMx4shX05D0geO5kPOST request Enroll on Org2 ...{"success":true,"secret":"kXcltqsAoiDf","message":"Barry enrolled Successfully","token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MTc5NjMwMDcsInVzZXJuYW1lIjoiQmFycnkiLCJvcmdOYW1lIjoib3JnMiIsImlhdCI6MTUxNzkyNzAwN30.ePexFJ2r9WoYNma5iKomJu3anEvg3PTgBEqI6K-s6F0"}ORG2 token is eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1MTc5NjMwMDcsInVzZXJuYW1lIjoiQmFycnkiLCJvcmdOYW1lIjoib3JnMiIsImlhdCI6MTUxNzkyNzAwN30.ePexFJ2r9WoYNma5iKomJu3anEvg3PTgBEqI6K-s6F0POST request Create channel ...{"success":true,"message":"Channel 'mychannel' created Successfully"}POST request Join channel on Org1{"success":true,"message":"Successfully joined peers in organization org1 to the channel 'mychannel'"}POST request Join channel on Org2{"success":true,"message":"Successfully joined peers in organization org2 to the channel 'mychannel'"}POST Install chaincode on Org1Successfully Installed chaincode on organization org1POST Install chaincode on Org2Successfully Installed chaincode on organization org2POST instantiate chaincode on peer1 of Org1Failed to order the transaction. Error code: undefinedPOST invoke chaincode on peers of Org1 and Org2Transacton ID is Failed to order the transaction. Error code: undefinedGET query chaincode on peer1 of Org1a now has Error: 2 UNKNOWN: could not find chaincode with name 'mycc' - make sure the chaincode mycc has been successfully instantiated and try again after the moveGET query Block by blockNumberError: 2 UNKNOWN: chaincode error (status: 500, message: Failed to get block number 1, error Entry not found in index)at new createStatusError (/root/fabric-samples/balance-transfer/node_modules/grpc/src/client.js:65:15)at /root/fabric-samples/balance-transfer/node_modules/grpc/src/client.js:568:15GET query Transaction by TransactionIDError: 2 UNKNOWN: chaincode error (status: 500, message: Failed to get transaction with id Failed, error Entry not found in index)at new createStatusError (/root/fabric-samples/balance-transfer/node_modules/grpc/src/client.js:65:15)at /root/fabric-samples/balance-transfer/node_modules/grpc/src/client.js:568:15GET query ChainInfo{"height":{"low":1,"high":0,"unsigned":true},"currentBlockHash":{"buffer":{"type":"Buffer","data":[8,1,18,32,180,19,234,224,76,239,188,107,147,219,120,185,108,73,201,120,81,0,242,221,32,3,94,175,16,200,181,113,100,97,129,57]},"offset":4,"markedOffset":-1,"limit":36,"littleEndian":true,"noAssert":false},"previousBlockHash":{"buffer":{"type":"Buffer","data":[]},"offset":0,"markedOffset":-1,"limit":0,"littleEndian":false,"noAssert":false}}GET query Installed chaincodes["name: mycc, version: v0, path: github.com/example_cc"]GET query Instantiated chaincodes[]GET query Channels{"channels":[{"channel_id":"mychannel"}]}Total execution time : 364 secs ...

上面 ERROR 可能是因?yàn)?hyperledger v1.0.5 版本的緣故。此時(shí)的 fabric-samples 僅僅支持 v1.0.0。

4.?Hyperledger Composer

Build Blockchain applications and business networks your way

https://hyperledger.github.io/composer/

5.?Restful 接口

5.1.?注冊(cè)

curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X POST -d ' {"enrollId": "jim","enrollSecret": "6avZQLwcUe9b"}' http://localhost:7050/registrar

5.2.?

curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X POST -d ' {"jsonrpc": "2.0","method": "deploy","params": {"type": 1,"chaincodeID":{"name": "mycc"},"ctorMsg": {"function":"init","args":[]},"secureContext": "jim"},"id": 1}' http://localhost:7050/chaincode

6.?Hyperledger Fabric Client SDK for Node.js

6.1.?package.json

[root@localhost fabcar]# cat package.json {"name": "fabcar","version": "1.0.0","description": "Hyperledger Fabric Car Sample Application","main": "fabcar.js","scripts": {"test": "echo \"Error: no test specified\" && exit 1"},"dependencies": {"fabric-ca-client": "^1.0.2","fabric-client": "^1.0.2","grpc": "^1.6.0"},"author": "Anthony O'Dowd","license": "Apache-2.0","keywords": ["Hyperledger","Fabric","Car","Sample","Application"] }

7.?fabric-sdk-java

7.1.?Maven

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>cn.netkiller</groupId><artifactId>fabric-sdk-java</artifactId><version>0.0.1-SNAPSHOT</version><dependencies><dependency><groupId>org.hyperledger.fabric-sdk-java</groupId><artifactId>fabric-sdk-java</artifactId><version>1.0.1</version></dependency></dependencies> </project>

8.?FAQ

8.1.?

ERROR: manifest for hyperledger/fabric-orderer:latest not found ERROR: manifest for hyperledger/fabric-couchdb:latest not found ERROR: manifest for hyperledger/fabric-ca:latest not found ERROR: manifest for hyperledger/fabric-tools:latest not found

解決方案

8.2.?卸載 hyperledger 環(huán)境

docker rmi -f $(docker images -q)

轉(zhuǎn)載于:https://my.oschina.net/neochen/blog/1619560

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