- truffle - 4.1.14
- web3 - 0.20.6
- Node - 14.17.0
- Ganache-cli - 6.12.2
- @truffle/hdwallet-provider - 1.4.1
- npm - 6.14.13
- chai - 4.3.4
- solidity - 0.4.24
- lite-server - 2.4.0
- webpack - 5.38.1
- webpack-dev-server - 3.11.2
I used the Node Package Manager and Node the javascript runtime environment for the SupplyChain Dapp. I also used Truffle development framework and Ganache-cli development environemnt for testing smart contract deployment and interactions. Solidity is the smart contract language utilized. The @truffle/hdwallet-provider library is used to sign transactions. Chai is the testing library for the smart contracts. Web3 is the ethereum javascript api. Lite-server, webpack, and webpack-dev-server are used for running the Dapps front-end locally.
Contract Addr: 0xbD31101D19234D52F1a4e431eD3e8bD1D521a2E0
Transaction Hash: 0xf37cfaac9c2e7d66605eab5919637bbb5c081ed8b2e63be78582a87071a674bd
This repository contains an Ethereum DApp that demonstrates a Supply Chain flow between a Seller and Buyer. The user story is similar to any commonly used supply chain process. A Seller can add items to the inventory system stored in the blockchain. A Buyer can purchase such items from the inventory system. Additionally a Seller can mark an item as Shipped, and similarly a Buyer can mark an item as Received.
The DApp User Interface when running should look like...
These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.
Please make sure you've already installed ganache-cli, Truffle and enabled MetaMask extension in your browser.
Give examples (to be clarified)
The starter code is written for Solidity v0.4.24. At the time of writing, the current Truffle v5 comes with Solidity v0.5 that requires function mutability and visibility to be specified (please refer to Solidity documentation for more details). To use this starter code, please run
npm i -g truffle@4.1.14to 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:
ganache-cli -m "spirit supply whale amount human item harsh scare congress discover talent hamster"
Your terminal should look something like this:
In a separate terminal window, Compile smart contracts:
truffle compile
Your terminal should look something like this:
This will create the smart contract artifacts in folder build\contracts.
Migrate smart contracts to the locally running blockchain, ganache-cli:
truffle migrate
Your terminal should look something like this:
Test smart contracts:
truffle test
All 10 tests should pass.
In a separate terminal window, launch the DApp:
npm run dev
- Ethereum - Ethereum is a decentralized platform that runs smart contracts
- Truffle Framework - Truffle is the most popular development framework for Ethereum with a mission to make your life a whole lot easier.
See also the list of contributors who participated in this project.
- Solidity
- Ganache-cli
- Truffle
Author: Ethan Moore
Email: eldm2350@protonmail.com
Github: https://github.com/eldm-ethanmoore
LinkedIn: https://www.linkedin.com/in/ethan-moore-a7106121a/
Website: https://eldm.net