Wine Supply Chain - Ethereum Blockchain Project

Wine Supply Chain management and process tracking on Ethereum Blockchain. Project provides transaparency of every process of wine production right from grapes to bottle delivered to delivered to the customer. The project contains a minimum of 4 different actors (to allow for an intermediary aside from buyer and seller) and 10 different states (harvested, bottled, shipped, for sale received).

Project Architecture.

• Project architecture diagrams can be found in the architecture folder.

State Architecture:

Implementations in this project.

Add Smart Contract Functions:

• AccessControl - Collection of Contracts: These contracts manages the various addresses and constraints for operations that can be executed only by specific roles.

• Base - SupplyChain.sol: This is where we define the most fundamental code shared throughout the core functionality. This includes our main data storage, constants and data types, plus internal functions for managing these items.

• Core - Ownable.sol: is the contract that controls ownership and transfer of ownership.

AccessControl Contracts:

• Producer: The Producer can harvest grapes, process vinification, sell to distributor and track authenticity.
• Distributor: The Distributor can buy & distribute wine bottle and track authenticity.
• Retailer: The Retailer can buy & put wine bottles for sale and track authenticity.
• Consumer: The consumer can buy wine bottle and track authenticity.

Base Contract - This smart contract must implement functions that track:

• Farm Information - Vineyard ID | Vineyard Name | Vineyard Longitude | Vineyard Latitude | Vineyard Address
• Grapes Information - Grapes ID | Grapes State | Grapes Description | Vintage Year | Vineyard Owner | Farm
• Wine Bottle Information - Wine ID | Grapes ID | Wine Price | Wine State | Wine Owners | Wine Description

Core Contract

• Ownable - Define an owner for all the contracts.

Front-end is configured to:

• Submit a product for shipment (producer to the distributor, distributor to retailer, etc).
• Receive product from shipment.
• Validate the authenticity of the product.

Tech & Dependencies

• Node.js - Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine.
• Truffle - The most popular blockchain development suite.
• OpenZeppelin - OpenZeppelin is a library for secure smart contract development.
• Truffle HD Wallet - HD Wallet-enabled Web3 provider.
• Infura - Your access to the Ethereum Network.
• Metamask - Brings Ethereum to your browser.
• Webpack - A bundler for javascript

Installation

Notary Blockchain requires Node.js v4+ to run.

Install the dependencies and start the server.

$ cd WineSupplyChain
$ npm run build
$ npm run start

The web app will be deployed to http://localhost:8080

Download and install Metamask on Google Chrome browser to interact with contract.

Ensure to add custom RPC to Metamask at http://127.0.0.1:9545 to connect with local ganache blockchain.

For running tests:

$ cd WineSupplyChain
$ truffle migrate --reset --development (Make sure you have installed ganache-cli)
$ truffle test

Preview of the Web App:

Now use Metamask to interact transactions with the WebApp

Register Farm -> Harvest Grapes -> Press Grapes -> Ferment Grapes -> Process Wine Bottle Buy Bottle for Distribution -> Buy Bottle for Retail -> Put up Bottle for Sale -> Purchase Bottle -> Ship Bottle -> Receive Bottle

Project Information:

• Migrations:
  Transaction Hash: 0x7cbacef69457a4455d5f3c2d76a969bdd55bbc73a1c1c61b07dc5919fbf3a89d
  Contract Address: 0xC83F320D0BE40427f798A0b53e11bB9910309E69

• ProducerRole:
  Transaction Hash: 0x39765103ce0df5ca97e8b28ae06df82c08b753fcd47e749dc31a7be810fcb2b3
  Contract Address: 0xe543723433F62Ddd2dcAd212B9AD516a1E3188F0

• DistributorRole:
  Transaction Hash: 0x94c403ba5778bc2bd4c44f8a3c6aa5e60878f064ac716b6ec59eeeee82497ab9
  Contract Address: 0x56AF12F57027852dD1A8134a8f73F179AB067417

• RetailerRole:
  Transaction Hash: 0x1065b2a1335a4b245eec2de0b1cfaafa732eb3957efe6f10a37a45b4a83c18a7
  Contract Address: 0x55421074DF0e81197f973B4eC52FD50073d87E00

• CustomerRole:
  Transaction Hash: 0x83abdd331a5b5a0f408f2f86c0dfebb495928511e6edf1a4f120d8c33f28ff6b
  Contract Address: 0x1a8b71d27362aB0c1B9aF87C9Dd39295119b8a82

• SupplyChain:
  Transaction Hash: 0x76bd29d12ef47c355126c055ebd626870144008ff8b6551b41ddcf1847eafe8e
  Contract Address: 0x7c1639f7229945e1fb4654e697B2c4fC403cB642