Hyperledger-fabric-raft-with-channel-EventHub

Hyper-ledger Fabric setup using the raft consensus engine which also includes creation of channel eventhub.This example contains, Two organistion each consist of two peers, one CA, five orderer.

Steps for create the channel and join the channel using CLI

• Peer0.org1.example.com

    docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt" -e "CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/[email protected]/msp" -e "CORE_PEER_ADDRESS=peer0.org1.example.com:7051" -it cli_org1 bash
  

• Peer0.org2.example.com

    docker exec -e "CORE_PEER_LOCALMSPID=Org2MSP" -e "CORE_PEER_TLS_ROOTCERT_FILE=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt" -e "CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org2.example.com/users/[email protected]/msp" -e "CORE_PEER_ADDRESS=peer0.org2.example.com:9051" -it cli_org1 bash
  

• Set the orderer tls

    export ORDERER_CA=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem
  

create the channel transaction

peer channel create -o orderer.example.com:7050 -c channelall -f /opt/gopath/src/github.com/hyperledger/fabric/peer/channel-artifacts/channelAll.tx --tls --cafile $ORDERER_CA

Join the channel

peer channel join -b channelall.block --tls --cafile $ORDERER_CA

Install the chain-code we are using the fabcar

peer chaincode install -n fabcar -p github.com/chaincode/chaincode/fabcar -v 1.1

Initialise the fabcar

peer chaincode instantiate -o orderer.example.com:7050 --tls --cafile $ORDERER_CA -C channelall -c '{"Args":[]}'  -n fabcar -v 1.1

Init the fabcar

peer chaincode invoke -o orderer.example.com:7050 --tls --cafile $ORDERER_CA -C channelall -n fabcar -c '{"Args":["initLedger"]}'

Interacting with blockchain using fabric node client and working with channel event

 cd node-js

 npm install

• Enrol the CA which create the wallet folder and certificate for ca admin.

  node enroll.js

• Register user which create the user's certificate and store in wallet folder.

  node registerUser.js

• Invoke the transaction which creates the transaction on fabric network.

  node invoke.js

Note: In invoke.js file, we can see the implementation for channel event. There are two implementations for channel event, one for getting the latest block and another chain event for providing the start and end index of block