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检查虚拟机环境#xff0c;确保有正在运行的Hyperledger Fabric区块链#xff0c;并且其中chaincode_basic、credit_chaincode链码可以正常调用 查看chaincode_basic、credit_chaincode链码调用 二.开发征信链码代码
基于现有征信链码#xff0c;开发征信…一.检查配置环境
检查虚拟机环境确保有正在运行的Hyperledger Fabric区块链并且其中chaincode_basic、credit_chaincode链码可以正常调用 查看chaincode_basic、credit_chaincode链码调用 二.开发征信链码代码
基于现有征信链码开发征信链码的升级版使用chaincode-init文件夹中的基础链码模板创建完善其中lib目录以及index.js内容在lib中创建CreditPlusContract对象在对象中添加createCreditSubjectPlus功能实现征信主体的保存定义subject变量属性包括key:征信主体主键, organizationName征信主体评价机构名, type评价类型score征信积分creator创建人datetime评价时间其中属性除score外其余都为string类型。将subject内容上链保存 在链码中添加征信主体查询功能queryCreditSubjectPlus要求能够查询所有主体内容包括key:征信主体主键, organizationName征信主体评价机构名, type评价类型score征信积分creator创建人datetime评价时间 use strict;
const { Contract } require(fabric-contract-api);
class CreditPlusContract extends Contract {async createCreditSubjectPlus(ctx, key, organizationName, type, creator, datetime) {console.info( START:创建征信主体 );const subject {key: key,organizationName: organizationName,type: type,score: 0,creator: creator,datetime: datetime};await ctx.stub.putState(key, Buffer.from(JSON.stringify(subject)));console.info( END:创建征信主体 );return subject;}// 查询征信主体async queryCreditSubjectPlus(ctx, subjectKey) {console.info( START : 查询征信主体 );const bytes await ctx.stub.getState(subjectKey);if (!bytes || bytes.length 0) {const msg ${subjectKey} 征信主体不存在;console.warn(msg);throw new Error(msg);}const subject JSON.parse(bytes.toString());console.info( END : 查询征信主体 );return subject;}}module.exports CreditPlusContract; 在链码结构中test目录中添加对于createCreditSubjectPlus以及QueryCreditSubjectPlus功能的单元测试提交测试代码和验证结果。 use strict;
const sinon require(sinon);
const chai require(chai);
const sinonChai require(sinon-chai);
const expect chai.expect;
chai.use(sinonChai);
let assert sinon.assert;
const { Context } require(fabric-contract-api);
const { ChaincodeStub, ClientIdentity } require(fabric-shim);
const CreditPlusContract require(../lib/creditContract);
describe(Credit Chaincode Test, () {let stub, ctx, ClientId;beforeEach(() {ctx new Context();stub sinon.createStubInstance(ChaincodeStub);stub.getMspID.returns(Org1);ctx.setChaincodeStub(stub);ClientId sinon.createStubInstance(ClientIdentity);stub.putState.callsFake((key, value) {if (!stub.states) {stub.states {};}stub.states[key] value;});stub.getState.callsFake(async (key) {let ret;if (stub.states) {ret stub.states[key];}return Promise.resolve(ret);});stub.deleteState.callsFake(async (key) {if (stub.states) {delete stub.states[key];}});});describe(Test CreditSubject function, () {it(should return success on createCreditSubject, async () {let creditContract new CreditPlusContract();let creditSubject await creditContract.createCreditSubjectPlus(ctx, A001, My Company, Company,Admin,2024-05-28 14:35:00);let scroe creditSubject.score;expect(scroe).to.equals(0);});it(should return success on queryCreditSubject, async () {let creditContract new CreditPlusContract();await creditContract.createCreditSubjectPlus(ctx, A001, My Company, Company, Admin, 2024-05-28 14:35:00);let creditSubject await creditContract.queryCreditSubjectPlus(ctx, A001);let name creditSubject.organizationName;expect(name).to.equals(My Company);});});
})
测试代码: 三.部署征信链码
在虚拟机指定Hyperledger Fabric中实现对应链码的部署并验证部署情况。
将链码名修改切credit_chaincode_plus删除node_modules目录以及对应package-lock.json文件上传至服务器chaincode目录下 打包测试:
export FABRIC_CFG_PATH${PWD}/configpeer lifecycle chaincode package ./chaincode/credit_chaincode_plus.tar.gz --path ./chaincode/credit_chaincode_plus --lang node --label credit_chaincode_plus_1.0 查看打包结果: 安装链码运行以下进入fabric-cli容器
docker exec -it fabric-cli bash
1. 在org1中安装运行以下链码安装
. scripts/set-env.sh 1 0 7051
peer lifecycle chaincode install chaincode/credit_chaincode_plus.tar.gz 2. 在org2中安装运行以下链码安装
. scripts/set-env.sh 2 0 9051
peer lifecycle chaincode install chaincode/credit_chaincode_plus.tar.gz 3. 查看安装情况
peer lifecycle chaincode queryinstalled 批准链码 org1批准链码
1. 设置链码环境变量
export CC_PACKAGE_IDcredit_chaincode_plus_1.0:9415a0be8812a91c2e510619a4d2a6a5cd06a8cf8f9cef96ee4eec2f456ab7ec
2. 设置Org1环境变量
. scripts/set-env.sh 1 0 7051
3.批准链码
peer lifecycle chaincode approveformyorg -o orderer.example.com:7050 --ordererTLSHostnameOverride orderer.example.com --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.0 --package-id $CC_PACKAGE_ID --sequence 1 --tls --cafile $ORDERER_CA 1. 设置Org2环境变量
. scripts/set-env.sh 2 0 9051
2.批准链码
peer lifecycle chaincode approveformyorg -o orderer.example.com:7050 --ordererTLSHostnameOverride orderer.example.com --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.0 --package-id $CC_PACKAGE_ID --sequence 1 --tls --cafile $ORDERER_CA 检查提交准备
peer lifecycle chaincode checkcommitreadiness --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.0 --sequence 1 --tls --cafile $ORDERER_CA --output json 提交链码
peer lifecycle chaincode commit -o orderer.example.com:7050 --ordererTLSHostnameOverride orderer.example.com --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.0 --sequence 1 --tls --cafile $ORDERER_CA --peerAddresses peer0.org1.example.com:7051 --tlsRootCertFiles $PEER0_ORG1_CA --peerAddresses peer0.org2.example.com:9051 --tlsRootCertFiles $PEER0_ORG2_CA 查询提交的链码
peer lifecycle chaincode querycommitted --channelID $CHANNEL_NAME --name credit_chaincode_plus --tls --cafile $ORDERER_CA 查看运行镜像形成容器情况
docker logs -f b1ddd21303a5 调用createCreditSubject功能
peer chaincode invoke -o orderer.example.com:7050 --tls --cafile $ORDERER_CA --channelID $CHANNEL_NAME --name credit_chaincode_plus --peerAddresses peer0.org1.example.com:7051 --tlsRootCertFiles $PEER0_ORG1_CA --peerAddresses peer0.org2.example.com:9051 --tlsRootCertFiles $PEER0_ORG2_CA -c {function:createCreditSubjectPlus, Args:[A001, My Company, Company,Admin,2024-05-28 14:35:00]} 调用queryCreditSubject功能
peer chaincode query -C $CHANNEL_NAME --name credit_chaincode_plus -c {function:queryCreditSubjectPlus,Args:[A001]} 四.部署删除和更新代码
在链码中添加DeleteCreditSubject实现按subject变量的key属性删除数据功能 在链码中添加UpdateSubjectScore功能实现按key更新subject更新subject变量中的score use strict;const { Contract } require(fabric-contract-api);class CreditPlusContract extends Contract {async createCreditSubjectPlus(ctx, key, organizationName, type, creator, datetime) {console.info( START:创建征信主体 );const subject {key: key,organizationName: organizationName,type: type,score: 0,creator: creator,datetime: datetime};await ctx.stub.putState(key, Buffer.from(JSON.stringify(subject)));console.info( END:创建征信主体 );return subject;}// 查询征信主体async queryCreditSubjectPlus(ctx, subjectKey) {console.info( START : 查询征信主体 );const bytes await ctx.stub.getState(subjectKey);if (!bytes || bytes.length 0) {const msg ${subjectKey} 征信主体不存在;console.warn(msg);throw new Error(msg);}const subject JSON.parse(bytes.toString());console.info( END : 查询征信主体 );return subject;}async deleteCreditSubject(ctx, id) {const exists await this.creditSubjectExists(ctx, id);if (!exists) {throw new Error(The asset ${id} does not exist);}return ctx.stub.deleteState(id);}async creditSubjectExists(ctx, id) {const assetJSON await ctx.stub.getState(id);return assetJSON assetJSON.length 0;}async updateSubjectScore(ctx,subjectKey,inputScore) {const exists await this.creditSubjectExists(ctx,subjectKey);if (!exists) {throw new Error(The credit subject ${subjectKey} does not exist);}const bytes await ctx.stub.getState(subjectKey);if (!bytes || bytes.length 0){const msg ${subjectKey} 征信主体不存在;console.warn(msg)throw new Error (msg);}var subject JSON.parse(bytes.toString());subject.scoreinputScore;return ctx.stub.putState(subjectKey, Buffer.from(JSON.stringify(subject)));}}module.exports CreditPlusContract;
在链码结构中test目录中添加对于DeleteCreditSubject以及UpdateSubjectScore功能的单元测试 use strict;
const sinon require(sinon);
const chai require(chai);
const sinonChai require(sinon-chai);
const expect chai.expect;
chai.use(sinonChai);
let assert sinon.assert;
const { Context } require(fabric-contract-api);
const { ChaincodeStub, ClientIdentity } require(fabric-shim);
const CreditPlusContract require(../lib/creditContract);
describe(Credit Chaincode Test, () {let stub, ctx, ClientId;beforeEach(() {ctx new Context();stub sinon.createStubInstance(ChaincodeStub);stub.getMspID.returns(Org1);ctx.setChaincodeStub(stub);ClientId sinon.createStubInstance(ClientIdentity);stub.putState.callsFake((key, value) {if (!stub.states) {stub.states {};}stub.states[key] value;});stub.getState.callsFake(async (key) {let ret;if (stub.states) {ret stub.states[key];}return Promise.resolve(ret);});stub.deleteState.callsFake(async (key) {if (stub.states) {delete stub.states[key];}});});describe(Test CreditSubject function, () {it(should return success on createCreditSubject, async () {let creditContract new CreditPlusContract();let creditSubject await creditContract.createCreditSubjectPlus(ctx, A001, My Company, Company,Admin,2024-05-28 14:35:00);let scroe creditSubject.score;expect(scroe).to.equals(0);});it(should return success on queryCreditSubject, async () {let creditContract new CreditPlusContract();await creditContract.createCreditSubjectPlus(ctx, A001, My Company, Company, Admin, 2024-05-28 14:35:00);let creditSubject await creditContract.queryCreditSubjectPlus(ctx, A001);let name creditSubject.organizationName;expect(name).to.equals(My Company);});it(should return sucess on DeleteCreditSubject, async () {let creditContract new CreditPlusContract();await creditContract.createCreditSubjectPlus(ctx, A001, My Company, Company, Admin, 2024-05-28 14:35:00);await creditContract.deleteCreditSubject(ctx,A001);let ret await stub.getState(A001);expect(ret).to.equal(undefined);});it(should return sucess on updateSubjectScore, async () {let creditContract new CreditPlusContract();await creditContract.createCreditSubjectPlus(ctx, A001, My Company, Company, Admin, 2024-05-28 14:35:00);await creditContract.updateSubjectScore(ctx, A001,10);let ret JSON.parse(await stub.getState(A001));expect(ret.score).to.eql(10);});});
})
测试代码: 五.更新部署征信链码
在链码中重新部署开发链码实现链码更新要求version、sequence有迭代痕迹
打包测试:
export FABRIC_CFG_PATH${PWD}/configpeer lifecycle chaincode package ./chaincode/credit_chaincode_plus.tar.gz --path ./chaincode/credit_chaincode_plus --lang node --label credit_chaincode_plus_1.1 安装链码 运行以下进入fabric-cli容器
docker exec -it fabric-cli bash
1. 在org1中安装 | 运行以下链码安装
. scripts/set-env.sh 1 0 7051
peer lifecycle chaincode install chaincode/credit_chaincode_plus.tar.gz 2. 在org2中安装 运行以下链码安装
. scripts/set-env.sh 2 0 9051
peer lifecycle chaincode install chaincode/credit_chaincode_plus.tar.gz 3. 查看安装情况
peer lifecycle chaincode queryinstalled 三.批准链码 org1批准链码
设置链码环境变量
export CC_PACKAGE_IDcredit_chaincode_plus_1.1:a7d65de21f706c25029b84cbbf7de2163d06d9b8e9fc33fd20a5a59cc3a18b01
2. 设置Org1环境变量
. scripts/set-env.sh 1 0 7051
3.批准链码
peer lifecycle chaincode approveformyorg -o orderer.example.com:7050 --ordererTLSHostnameOverride orderer.example.com --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.1 --package-id $CC_PACKAGE_ID --sequence 2 --tls --cafile $ORDERER_CA 1. 设置Org2环境变量
. scripts/set-env.sh 2 0 9051
2.批准链码
peer lifecycle chaincode approveformyorg -o orderer.example.com:7050 --ordererTLSHostnameOverride orderer.example.com --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.1 --package-id $CC_PACKAGE_ID --sequence 2 --tls --cafile $ORDERER_CA 检查提交准备
peer lifecycle chaincode checkcommitreadiness --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.1 --sequence 2 --tls --cafile $ORDERER_CA --output json 提交链码
peer lifecycle chaincode commit -o orderer.example.com:7050 --ordererTLSHostnameOverride orderer.example.com --channelID $CHANNEL_NAME --name credit_chaincode_plus --version 1.1 --sequence 2 --tls --cafile $ORDERER_CA --peerAddresses peer0.org1.example.com:7051 --tlsRootCertFiles $PEER0_ORG1_CA --peerAddresses peer0.org2.example.com:9051 --tlsRootCertFiles $PEER0_ORG2_CA 查询提交的链码
peer lifecycle chaincode querycommitted --channelID $CHANNEL_NAME --name credit_chaincode_plus --tls --cafile $ORDERER_CA 查看运行镜像形成容器情况
docker logs -f b1ddd21303a5 调用createCreditSubject功能
peer chaincode invoke -o orderer.example.com:7050 --tls --cafile $ORDERER_CA --channelID $CHANNEL_NAME --name credit_chaincode_plus --peerAddresses peer0.org1.example.com:7051 --tlsRootCertFiles $PEER0_ORG1_CA --peerAddresses peer0.org2.example.com:9051 --tlsRootCertFiles $PEER0_ORG2_CA -c {function:createCreditSubjectPlus, Args:[A001, My Company, Company,Admin,2024-05-28 14:35:00]}
调用queryCreditSubject功能
peer chaincode query -C $CHANNEL_NAME --name credit_chaincode_plus -c {function:queryCreditSubjectPlus,Args:[A001]}
调用deleteCreditSubject功能
peer chaincode invoke -o orderer.example.com:7050 --tls --cafile $ORDERER_CA --channelID $CHANNEL_NAME --name credit_chaincode_plus --peerAddresses peer0.org1.example.com:7051 --tlsRootCertFiles $PEER0_ORG1_CA --peerAddresses peer0.org2.example.com:9051 --tlsRootCertFiles $PEER0_ORG2_CA -c {function:deleteCreditSubject, Args:[A001]} 调用updateSubjectScore功能(这边如果嫌麻烦的话可以更新功能之后再调用删除功能)
peer chaincode invoke -o orderer.example.com:7050 --tls --cafile $ORDERER_CA --channelID $CHANNEL_NAME --name credit_chaincode_plus --peerAddresses peer0.org1.example.com:7051 --tlsRootCertFiles $PEER0_ORG1_CA --peerAddresses peer0.org2.example.com:9051 --tlsRootCertFiles $PEER0_ORG2_CA -c {function:updateSubjectScore, Args:[A002,10]}
