Sugar Engine – Lisk Backend

Backend service powering Sugar's interaction with the Lisk blockchain. Built to enable seamless message validation, real-time communication, and on-chain logic handling for the Sugar Web3 streaming platform.

🔧 Tech Stack

• Express.js – HTTP & WebSocket API
• Viem – Blockchain interaction (Lisk)
• MongoDB – Database for persistence
• RabbitMQ – Queueing & task distribution
• WebSocket – Real-time communication

📦 Package & Scripts

package.json highlights:

"scripts": {
  "dev": "tsup --watch",
  "build": "tsup",
  "start": "node ./dist"
}

• Built with TypeScript and bundled via tsup
• Uses express-async-errors for clean async error handling
• Real-time via express-ws and ws

📁 Project Structure

.
├── src/
│   ├── routes/
│   ├── services/
│   ├── packages/
│   └── index.ts
├── .env
└── dist/

.