Coffee Supply chain - From the plant to your cup

This repository contains a simple process of a supply chain process where the farmer can track their product from harvest, to packed, and sold, shipped and delivered to a retailer so a consumer can buy it.

The DApp User Interface uses a simple web front end webpage, and interfaces with Ganache, the gui version, and allows the user to see the process, ownership, etc.

Project Write Up - UML

Please see the following diagrams for the Supply Chain process.

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Getting Started

To get started, download the repository, install the prerequisites, and then you should be able to test.

Prerequisites

Please make sure you've already installed ganache-gui, Truffle and enabled MetaMask extension in your browser.

Installing

The starter code is written for Solidity v0.4.24. To use this project, please run npm i -g [email protected] to install Truffle v4 with Solidity v0.4.24.

A step by step series of examples that tell you have to get a development env running

Clone this repository:

git clone https://github.com/udacity/nd1309/tree/master/course-5/project-6

Change directory to project-6 folder and install all requisite npm packages (as listed in package.json):

cd project-6
npm install

Launch Ganache Gui:

In a separate terminal window, Compile smart contracts:

truffle compile

This will create the smart contract artifacts in folder build\contracts.

Migrate smart contracts to the locally running blockchain, ganache-cli:

truffle migrate --reset

Test smart contracts:

truffle test

All 20 tests should pass.

In a separate terminal window, launch the DApp:

npm run dev

Contract Address on Etherscan for the submitted contract

• Contract Address in Etherscan: 0xc5fbcCAeE3C21BED491d13c068fAeD54B59359FC https://rinkeby.etherscan.io/address/0xc5fbccaee3c21bed491d13c068faed54b59359fc

• Transaction Hash: 0x3dbe6e956062222414ec0eb08ee9f7efeb876f3bb037dbc4df54613d3da55a23 https://rinkeby.etherscan.io/tx/0x3dbe6e956062222414ec0eb08ee9f7efeb876f3bb037dbc4df54613d3da55a23

Built With

• Ethereum - Ethereum is a decentralized platform that runs smart contracts to make the web faster, safer, and more open.
• Truffle Framework - Truffle is the most popular development framework for Ethereum with a mission to make your life a whole lot easier.

Authors

Udacity wrote the template for the project, Shane Nicoll completed this project.

Acknowledgments

• Solidity
• Ganache-GUI
• Truffle