medical-system-chaincode

“基于区块链的智慧医疗系统”毕设项目的链码部分仓库

API笔记

• peer.Response结构
  • response.status：200/400/500
  • response.payload：base64编码后的返回
  • response.message：错误信息，由shim.Error指定
• 布置链码

  教程参考：Fabric官方教程 - 英文版

  1. 开启

  ./network.sh up

  2. 建立频道

  ./network.sh createChannel -c <channelName>
  ./network.sh createChannel -c fa-jason

  3. 安装链码

  ./network.sh deployCC -ccn <chaincode-name> -ccp <chaincode-filepath> -ccl <chaincode-language>
  ./network.sh deployCC -ccn MedicalSystem -ccp ../chaincode/MedicalSystem -ccl go -c fa-jason

  4. 调用函数

  peer chaincode instantiate -C fa-jason
  peer chaincode invoke -C fa-jason -c '{"function":"initLedger","Args":[]}'
  peer chaincode query -C fa-jason -c '...'

  5. 使用结束

  ./network.sh down

手动安装合约

需要从go代码目录执行下列命令

1. 打包：

GO111MODULE=on go mod vendor
cd ../../test-network
export PATH=${PWD}/../bin:$PATH
export FABRIC_CFG_PATH=$PWD/../config/
peer lifecycle chaincode package ms.tar.gz --path ../chaincode/MedicalSystem --lang golang --label ms_1.0

2. 安装：
   1. 节点1名义

   export CORE_PEER_TLS_ENABLED=true
   export CORE_PEER_LOCALMSPID="Org1MSP"
   export CORE_PEER_TLS_ROOTCERT_FILE=${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt
   export CORE_PEER_MSPCONFIGPATH=${PWD}/organizations/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp
   export CORE_PEER_ADDRESS=localhost:7051
   
   peer lifecycle chaincode install ms.tar.gz

   2. 节点2名义

   export CORE_PEER_LOCALMSPID="Org2MSP"
   export CORE_PEER_TLS_ROOTCERT_FILE=${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt
   export CORE_PEER_TLS_ROOTCERT_FILE=${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt
   export CORE_PEER_MSPCONFIGPATH=${PWD}/organizations/peerOrganizations/org2.example.com/users/Admin@org2.example.com/msp
   export CORE_PEER_ADDRESS=localhost:9051
   
   peer lifecycle chaincode install ms.tar.gz

3. 接受链码定义：

peer lifecycle chaincode queryinstalled

export CC_PACKAGE_ID=<pkgid from last order>

peer lifecycle chaincode approveformyorg -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --channelID fa-jason --name MedicalSystem --version 1.0 --package-id $CC_PACKAGE_ID --sequence 1 --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem"

需切换至节点1，继续运行approveformyorg命令

  export CORE_PEER_LOCALMSPID="Org1MSP"
  export CORE_PEER_MSPCONFIGPATH=${PWD}/organizations/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp
  export CORE_PEER_TLS_ROOTCERT_FILE=${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt
  export CORE_PEER_ADDRESS=localhost:7051
      
  peer lifecycle chaincode approveformyorg -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --channelID fa-jason --name MedicalSystem --version 1.0 --package-id $CC_PACKAGE_ID --sequence 1 --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem"

4. 提交链码定义至频道

peer lifecycle chaincode checkcommitreadiness --channelID fa-jason --name MedicalSystem --version 1.0 --sequence 1 --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" --output json

输出应均为true

peer lifecycle chaincode commit -o localhost:7050 --ordererTLSHostnameOverride orderer.example.com --channelID fa-jason --name MedicalSystem --version 1.0 --sequence 1 --tls --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem" --peerAddresses localhost:7051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" --peerAddresses localhost:9051 --tlsRootCertFiles "${PWD}/organizations/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt"

5. 检验提交状态

peer lifecycle chaincode querycommitted --channelID fa-jason --name MedicalSystem --cafile "${PWD}/organizations/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem"