Déployer un réseau de chaînes de blocs d’organisation unique à l’aide d’Hyperledger Fabric 2.0 et de NodeJs

Configuration

{
"peer_name": "peer0.org1.example.com",
"channelid": "mychannel",
"use_couchdb": true,
"create_history_log": true,
"couchdb_address": "http://admin:password@localhost:5984"
}

Démarrage de l’écouteur d’événements de canal

# Note: This command needs to be executed from the network/code directory./offChainInit.sh

# Following command start a local instance of CouchDB using docker
docker run -e COUCHDB_USER=admin -e COUCHDB_PASSWORD=password --publish 5990:5984 --detach --name offchaindb couchdb
docker start offchaindb# You need to install Node.js version 8.9.x to use the sample application code.
# Following command to install the required dependencies:
npm install# After we have installed the application dependencies, we can use the Node.js SDK
# to create the identity our listener application will use to interact with the
# network. Following command is executed to enroll the admin user
node enrollAdmin.js# Following command to register and enroll an application user
node registerUser.js# Then we can then use our application user to start the block event listener
node blockEventListener.js

Listening for block events, nextblock: 0
Added block 0 to ProcessingMap
Added block 1 to ProcessingMap
Added block 2 to ProcessingMap
Added block 3 to ProcessingMap
Added block 4 to ProcessingMap
Added block 5 to ProcessingMap
Added block 6 to ProcessingMap
------------------------------------------------
Block Number: 0
------------------------------------------------
Block Number: 1
------------------------------------------------
Block Number: 2
------------------------------------------------
Block Number: 3
Block Timestamp: 2019-08-08T19:47:56.148Z
ChaincodeID: _lifecycle
[]
------------------------------------------------
...
...

blockEventListener

BlockProcessing

Générer des données sur la blockchain

{
"nextMarbleNumber": 100,
"numberMarblesToAdd": 20
}

node addMarbles.js

node transferMarble.js marble110 james

node deleteMarble.js marble110

Stockage CouchDB hors chaîne: