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Fabric 2.0 instal guide
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你需要docker， docker-compose，go，git 以及 强悍的网络， 然后你就可以体验官方一键搞定的网络（链环境）和链码（智能合约）， 并用官方为你写好的sdk和调用sdk的demo代码体验与链码交互
基本环境准备
- Docker
- docker-compose
- docker 阿里镜像加速
- Git
对于 Mac
上诉环境只需要下载 docker的 dmg 安装后即可拥有 docker 和 docker-compose
对于 CentOs
docker
sudo yum update # 移除旧版本 yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-selinux docker-engine-selinux docker-engine sudo yum install -y yum-utils device-mapper-persistent-data lvm2 sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo #安装 docker sudo yum install docker-ce sudo systemctl start docker # 开机启动 sudo systemctl enable docker # 验证 docker --version
docker-compose
curl -L "https://github.com/docker/compose/releases/download/1.22.0/docker-compose-(uname−s)−(uname -m)" -o /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose docker-compose --version
git
sudo yum install -y git
go
wget -c https://studygolang.com/dl/golang/go1.14.linux-amd64.tar.gz tar -C /usr/local/ -zxvf go1.14.linux-amd64.tar.gz vi /etc/profile # 新增 export PATH=$PATH:/usr/local/go/bin export GOROOT=/usr/local/go export GOPATH=/root/go/ source /etc/profile #验证 go version
下载文件及 docker 镜像
一键脚本
curl -sSL https://bit.ly/2ysbOFE | bash -s -- 2.0.0 1.4.4 0.4.18
- 2.0.0：表示Hyperledger Fabric的版本号
- 1.4.4：表示Fabric CA的版本号
- 0.4.18：表示第三方引用的版本号
加速技巧
首先自己整个科学上网, 设置好 http 代理端口(如 1087)
然后在docker 偏好设置中设置代理, 如下图
设置完成后点击 Apply & Restart 重启生效.
若没有科学上网, 则可以手动执行 docker pull 命令, 单个执行不容易卡住
docker pull hyperledger/fabric-peer:2.0.0 docker pull hyperledger/fabric-orderer:2.0.0 docker pull hyperledger/fabric-ccenv:2.0.0 docker pull hyperledger/fabric-tools:2.0.0 docker pull hyperledger/fabric-nodeenv:2.0.0 docker pull hyperledger/fabric-baseos:2.0.0 docker pull hyperledger/fabric-javaenv:2.0.0 docker pull hyperledger/fabric-ca:1.4.4 docker pull hyperledger/fabric-zookeeper:0.4.18 docker pull hyperledger/fabric-kafka:0.4.18 docker pull hyperledger/fabric-couchdb:0.4.18
最后检查
cd fabric-samples/bin ls -l export PATH=$PATH:$(pwd) orderer version
1.存在 bin 目录 2.bin 下存在 orderer 等可执行文件 3.将 bin 添加到 PATH 下 4.检查 orderer 版本是否正确
测试网络
cd fabric-samples/test-network #注意会删除全部容器 docker stop $(docker ps -q) docker rm $(docker ps -aq) ./network.sh up
1.进入测试网络目录 2.停止并删除之前的容器防止命名冲突 3.运行测试网络(通过 docker-compose)
链码入门示例(智能合约)
启动环境及安装 npm
cd fabric-samples/fabcar #将启动 first-network 环境, 然后将早已存在镜像中的链码代码打包, 安装, 验证, 提交, 使其可执行 ./startFabric.sh javascript cd javascript # 自行安装cnpm cnpm i
测试链码
官方提示
JavaScript:
Start by changing into the "javascript" directory:
cd javascript
Next, install all required packages:
npm install
Then run the following applications to enroll the admin user, and register a new user
called user1 which will be used by the other applications to interact with the deployed
FabCar contract:
node enrollAdmin
node registerUser
You can run the invoke application as follows. By default, the invoke application will
create a new car, but you can update the application to submit other transactions:
node invoke
You can run the query application as follows. By default, the query application will
return all cars, but you can update the application to evaluate other transactions:
node query
通过SDK(js) 调用合约
#添加 admin 用户和普通用户 user1 node enrollAdmin.js node registerUser.js # 执行合约的 queryAll 方法 node query.js # 执行合约的 createCar 方法 node invoke.js # 重新查询 node query.js
实际合约(js 代码)
fabric-samples/chaincode/fabcar/javascript/lib/fabcar.js
/*
* SPDX-License-Identifier: Apache-2.0
*/
'use strict';
const { Contract } = require('fabric-contract-api');
class FabCar extends Contract {
async initLedger(ctx) {
console.info('============= START : Initialize Ledger ===========');
const cars = [
{
color: 'blue',
make: 'Toyota',
model: 'Prius',
owner: 'Tomoko',
},
{
color: 'red',
make: 'Ford',
model: 'Mustang',
owner: 'Brad',
},
{
color: 'green',
make: 'Hyundai',
model: 'Tucson',
owner: 'Jin Soo',
},
{
color: 'yellow',
make: 'Volkswagen',
model: 'Passat',
owner: 'Max',
},
{
color: 'black',
make: 'Tesla',
model: 'S',
owner: 'Adriana',
},
{
color: 'purple',
make: 'Peugeot',
model: '205',
owner: 'Michel',
},
{
color: 'white',
make: 'Chery',
model: 'S22L',
owner: 'Aarav',
},
{
color: 'violet',
make: 'Fiat',
model: 'Punto',
owner: 'Pari',
},
{
color: 'indigo',
make: 'Tata',
model: 'Nano',
owner: 'Valeria',
},
{
color: 'brown',
make: 'Holden',
model: 'Barina',
owner: 'Shotaro',
},
];
for (let i = 0; i < cars.length; i++) {
cars[i].docType = 'car';
await ctx.stub.putState('CAR' + i, Buffer.from(JSON.stringify(cars[i])));
console.info('Added <--> ', cars[i]);
}
console.info('============= END : Initialize Ledger ===========');
}
async queryCar(ctx, carNumber) {
const carAsBytes = await ctx.stub.getState(carNumber); // get the car from chaincode state
if (!carAsBytes || carAsBytes.length === 0) {
throw new Error(`${carNumber} does not exist`);
}
console.log(carAsBytes.toString());
return carAsBytes.toString();
}
async createCar(ctx, carNumber, make, model, color, owner) {
console.info('============= START : Create Car ===========');
const car = {
color,
docType: 'car',
make,
model,
owner,
};
await ctx.stub.putState(carNumber, Buffer.from(JSON.stringify(car)));
console.info('============= END : Create Car ===========');
}
async queryAllCars(ctx) {
const startKey = 'CAR0';
const endKey = 'CAR999';
const allResults = [];
for await (const {key, value} of ctx.stub.getStateByRange(startKey, endKey)) {
const strValue = Buffer.from(value).toString('utf8');
let record;
try {
record = JSON.parse(strValue);
} catch (err) {
console.log(err);
record = strValue;
}
allResults.push({ Key: key, Record: record });
}
console.info(allResults);
return JSON.stringify(allResults);
}
async changeCarOwner(ctx, carNumber, newOwner) {
console.info('============= START : changeCarOwner ===========');
const carAsBytes = await ctx.stub.getState(carNumber); // get the car from chaincode state
if (!carAsBytes || carAsBytes.length === 0) {
throw new Error(`${carNumber} does not exist`);
}
const car = JSON.parse(carAsBytes.toString());
car.owner = newOwner;
await ctx.stub.putState(carNumber, Buffer.from(JSON.stringify(car)));
console.info('============= END : changeCarOwner ===========');
}
}
module.exports = FabCar;
基本环境准备
- Docker
- docker-compose
- docker 阿里镜像加速
- Git
对于 Mac
上诉环境只需要下载 docker的 dmg 安装后即可拥有 docker 和 docker-compose
对于 CentOs
docker
sudo yum update # 移除旧版本 yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-selinux docker-engine-selinux docker-engine sudo yum install -y yum-utils device-mapper-persistent-data lvm2 sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo #安装 docker sudo yum install docker-ce sudo systemctl start docker # 开机启动 sudo systemctl enable docker # 验证 docker --version
docker-compose
curl -L "https://github.com/docker/compose/releases/download/1.22.0/docker-compose-(uname−s)−(uname -m)" -o /usr/local/bin/docker-compose chmod +x /usr/local/bin/docker-compose docker-compose --version
git
sudo yum install -y git
go
wget -c https://studygolang.com/dl/golang/go1.14.linux-amd64.tar.gz tar -C /usr/local/ -zxvf go1.14.linux-amd64.tar.gz vi /etc/profile # 新增 export PATH=$PATH:/usr/local/go/bin export GOROOT=/usr/local/go export GOPATH=/root/go/ source /etc/profile #验证 go version
下载文件及 docker 镜像
一键脚本
curl -sSL https://bit.ly/2ysbOFE | bash -s -- 2.0.0 1.4.4 0.4.18
- 2.0.0：表示Hyperledger Fabric的版本号
- 1.4.4：表示Fabric CA的版本号
- 0.4.18：表示第三方引用的版本号
加速技巧
首先自己整个科学上网, 设置好 http 代理端口(如 1087)
然后在docker 偏好设置中设置代理, 如下图
设置完成后点击 Apply & Restart 重启生效.
若没有科学上网, 则可以手动执行 docker pull 命令, 单个执行不容易卡住
docker pull hyperledger/fabric-peer:2.0.0 docker pull hyperledger/fabric-orderer:2.0.0 docker pull hyperledger/fabric-ccenv:2.0.0 docker pull hyperledger/fabric-tools:2.0.0 docker pull hyperledger/fabric-nodeenv:2.0.0 docker pull hyperledger/fabric-baseos:2.0.0 docker pull hyperledger/fabric-javaenv:2.0.0 docker pull hyperledger/fabric-ca:1.4.4 docker pull hyperledger/fabric-zookeeper:0.4.18 docker pull hyperledger/fabric-kafka:0.4.18 docker pull hyperledger/fabric-couchdb:0.4.18
最后检查
cd fabric-samples/bin ls -l export PATH=$PATH:$(pwd) orderer version
1.存在 bin 目录 2.bin 下存在 orderer 等可执行文件 3.将 bin 添加到 PATH 下 4.检查 orderer 版本是否正确
测试网络
cd fabric-samples/test-network #注意会删除全部容器 docker stop $(docker ps -q) docker rm $(docker ps -aq) ./network.sh up
1.进入测试网络目录 2.停止并删除之前的容器防止命名冲突 3.运行测试网络(通过 docker-compose)
链码入门示例(智能合约)
启动环境及安装 npm
cd fabric-samples/fabcar #将启动 first-network 环境, 然后将早已存在镜像中的链码代码打包, 安装, 验证, 提交, 使其可执行 ./startFabric.sh javascript cd javascript # 自行安装cnpm cnpm i
测试链码
官方提示
JavaScript:
Start by changing into the "javascript" directory:
cd javascript
Next, install all required packages:
npm install
Then run the following applications to enroll the admin user, and register a new user
called user1 which will be used by the other applications to interact with the deployed
FabCar contract:
node enrollAdmin
node registerUser
You can run the invoke application as follows. By default, the invoke application will
create a new car, but you can update the application to submit other transactions:
node invoke
You can run the query application as follows. By default, the query application will
return all cars, but you can update the application to evaluate other transactions:
node query
通过SDK(js) 调用合约
#添加 admin 用户和普通用户 user1 node enrollAdmin.js node registerUser.js # 执行合约的 queryAll 方法 node query.js # 执行合约的 createCar 方法 node invoke.js # 重新查询 node query.js
实际合约(js 代码)
fabric-samples/chaincode/fabcar/javascript/lib/fabcar.js
/*
* SPDX-License-Identifier: Apache-2.0
*/
'use strict';
const { Contract } = require('fabric-contract-api');
class FabCar extends Contract {
async initLedger(ctx) {
console.info('============= START : Initialize Ledger ===========');
const cars = [
{
color: 'blue',
make: 'Toyota',
model: 'Prius',
owner: 'Tomoko',
},
{
color: 'red',
make: 'Ford',
model: 'Mustang',
owner: 'Brad',
},
{
color: 'green',
make: 'Hyundai',
model: 'Tucson',
owner: 'Jin Soo',
},
{
color: 'yellow',
make: 'Volkswagen',
model: 'Passat',
owner: 'Max',
},
{
color: 'black',
make: 'Tesla',
model: 'S',
owner: 'Adriana',
},
{
color: 'purple',
make: 'Peugeot',
model: '205',
owner: 'Michel',
},
{
color: 'white',
make: 'Chery',
model: 'S22L',
owner: 'Aarav',
},
{
color: 'violet',
make: 'Fiat',
model: 'Punto',
owner: 'Pari',
},
{
color: 'indigo',
make: 'Tata',
model: 'Nano',
owner: 'Valeria',
},
{
color: 'brown',
make: 'Holden',
model: 'Barina',
owner: 'Shotaro',
},
];
for (let i = 0; i < cars.length; i++) {
cars[i].docType = 'car';
await ctx.stub.putState('CAR' + i, Buffer.from(JSON.stringify(cars[i])));
console.info('Added <--> ', cars[i]);
}
console.info('============= END : Initialize Ledger ===========');
}
async queryCar(ctx, carNumber) {
const carAsBytes = await ctx.stub.getState(carNumber); // get the car from chaincode state
if (!carAsBytes || carAsBytes.length === 0) {
throw new Error(`${carNumber} does not exist`);
}
console.log(carAsBytes.toString());
return carAsBytes.toString();
}
async createCar(ctx, carNumber, make, model, color, owner) {
console.info('============= START : Create Car ===========');
const car = {
color,
docType: 'car',
make,
model,
owner,
};
await ctx.stub.putState(carNumber, Buffer.from(JSON.stringify(car)));
console.info('============= END : Create Car ===========');
}
async queryAllCars(ctx) {
const startKey = 'CAR0';
const endKey = 'CAR999';
const allResults = [];
for await (const {key, value} of ctx.stub.getStateByRange(startKey, endKey)) {
const strValue = Buffer.from(value).toString('utf8');
let record;
try {
record = JSON.parse(strValue);
} catch (err) {
console.log(err);
record = strValue;
}
allResults.push({ Key: key, Record: record });
}
console.info(allResults);
return JSON.stringify(allResults);
}
async changeCarOwner(ctx, carNumber, newOwner) {
console.info('============= START : changeCarOwner ===========');
const carAsBytes = await ctx.stub.getState(carNumber); // get the car from chaincode state
if (!carAsBytes || carAsBytes.length === 0) {
throw new Error(`${carNumber} does not exist`);
}
const car = JSON.parse(carAsBytes.toString());
car.owner = newOwner;
await ctx.stub.putState(carNumber, Buffer.from(JSON.stringify(car)));
console.info('============= END : changeCarOwner ===========');
}
}
module.exports = FabCar;
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- 学分 ( 0 )
- 分类：Fabric
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