Quorum Sample Setup

Prerequisites

1. Install virtualbox
2. Install vagrant
3. Install truffle: npm install -g truffle

Note on Truffle

Truffle is a framework used to make development for Ethereum-based blockchains easier. It allows you to easily deploy, test and upgrade smart contracts.

Running Quorum

1. From quorum-examples: run vagrant up and vagrant ssh

Deploying smart contracts to Quorum

1. From smart-contracts/contracts: run truffle compile to generate the contract binaries
2. In ./migrations, create a new migration file and set the constructor parameter and the authorized nodes (get pub keys from tm1.pub (etc) in quorum-examples/examples/7nodes/keys)
3. From smart-contracts/migrations: run truffle migrate to deploy your smart contract

Updating network configuration

The sample network consists of seven nodes, of which the RPC ports are displayed in the vagrant logs. To connect to these nodes, edit the truffle.js file in ./smart-contracts

Direct interaction with Quorum

1. truffle console --> By default, you're acting as node1 ('development)
2. truffle console --network nodefour --> Acting as a different node
3. SimpleStorage.deployed().then(function(instance) { return instance.get(); }) --> Calling a method on a deployed contract

Ref

https://ethereum.stackexchange.com/questions/23459/deploy-contract-in-web3j-quorum-problem