This project is a part of a thesis implementation made by Štefan Töltési. Thesis is called Distributed Tamper Proof Task Manager and it was created for University of Southern Denmark. Following instructions are written for Linux based operating system.
To run the project Hyperledger Fabric's prerequisites have to be installed. Instalation guide can be found on Hyperldger website.
Another prerequisites are npm and node.js.
# Install dependencies - From the root of your project
npm i
# Create a new development blockchain network - From the root of your project
npm run env:restart
# Install smart contract onto the blockchain network
npm run cc:start
# Make a testing call to create a record in the ledger
# Beware that the first call may fail with a timeout! Just happens the first time
# Chaincode can be invoked with hurl
hurl invoke taskManager taskManager_create "{ parameters }"
Running env:restart command downloads Hyperledger Fabric docker images and creates organization and participants according to the .config.json files in the root folder. Created files are by default saved into a $HOME/hyperledger-fabric-network folder.
# When blockchain network has been started, Hyperledger's nodes can be seen running in Docker
docker ps
# To see nodes log output run following command
docker logs $(docker ps -qa | head -n 1) -f
npm run test
# First the application has to be compiled
npx lerna run compile --scope taskManager-app
# Now run the application
npx lerna run start --scope taskManager-app --stream
Server is now running and an interactive API can be accessed on http://localhost:3001/. By default an identity of an admin from org1 is used. To use a different identity application has to be supplied with a defferent certificate in .env file located in taskManager-app folder.
To see validated transaction and individual blocks of the blockchain, user can utilise byzantine-browser available from GitHub