The goal of this project is to create a decentralized marketplace where users can buy and sell their cars. Each car has its digital identity on the blockchain which cannot be modified. This should create trust between seller and buyer even if they do not know each other.
- MongoDB
- NodeJS + NPM
- Truffle
npm install -g [email protected]
Install required dependencies
npm install
Install & Start MongoDB (macOS)
brew install mongodb
sudo mongod
Run development build
npm start
Run production build
npm run bs
Run local blockchain
cd ethereum
truffle develop
Deploy smart contracts on local blockchain
cd ethereum
truffle migrate
Run application in browser
npm run dev
Run tests
npm test
Test smart contracts
cd ethereum
truffle test
TODO: Deployment on mainnet
├── client
│ ├── modules (groups of related components)
│ │ ├── App
│ │ ├── Car (cards, detail, ...)
│ │ └── Offer (page, detail, ...)
│ ├── util
│ ├── App.js (root component)
│ ├── index.js (injects root component into page)
│ ├── main.css
│ ├── reducers.js (root reducer)
│ ├── routes.js
│ └── store.js (state of app)
|
├── ethereum
|
├── dist (producton build for deployment)
|
├── Intl (text for client)
|
├── server
│ ├── controllers (communication with blockchain)
│ │ ├── trade.controller.js
│ │ └── car.controller.js
│ ├── models
│ │ ├── car.js
│ │ └── offer.js
│ ├── routes
│ │ ├── trade.routes.js (buy, sell, ...)
│ │ ├── car.routes.js (find, details, ...)
│ ├── util
│ ├── config.js
│ └── server.js (setup, db connection, startup, ...)
|
├── node_modules
├── README.md
├── package.json
└── .gitignore
No changes after migration
truffle migrate --resetto run all migrations from beginning
Contract migration failed
- remove
/buildfolder and perform migration again
Error: the tx doesn't have the correct nonce. account has nonce of: 4 tx has nonce of: 16
Solution: Reset account
- Hai Dang