Setting Up the Environment

Let's set up the complete development environment for the course.

Installing Node.js

Download from nodejs.org version LTS (20.x or higher).

bash

# Check installationnode --versionnpm --version

Creating the Project

bash

# Create folder and initializemkdir ecommerce-apicd ecommerce-apinpm init -y

Installing TypeScript

bash

npm install -D typescript ts-node @types/nodenpx tsc --init

TypeScript Configuration

json

// tsconfig.json{  "compilerOptions": {    "target": "ES2022",    "module": "commonjs",    "lib": ["ES2022"],    "outDir": "./dist",    "rootDir": "./src",    "strict": true,    "esModuleInterop": true,    "skipLibCheck": true,    "forceConsistentCasingInFileNames": true,    "resolveJsonModule": true  },  "include": ["src/**/*"],  "exclude": ["node_modules", "dist"]}

Project Structure

ecommerce-api/
├── src/
│   ├── config/
│   ├── controllers/
│   ├── middlewares/
│   ├── routes/
│   ├── services/
│   └── server.ts
├── prisma/
├── tests/
├── package.json
└── tsconfig.json

Useful Scripts

json

// package.json{  "scripts": {    "dev": "ts-node src/server.ts",    "build": "tsc",    "start": "node dist/server.js"  }}

VS Code Extensions

ESLint
Prettier
Prisma
Thunder Client (API testing)

Environment Variables

bash

npm install dotenv

env

# .envPORT=3000NODE_ENV=developmentDATABASE_URL="postgresql://user:pass@localhost:5432/ecommerce"

Summary

✅ Node.js 20+ installed
✅ TypeScript configured
✅ Project structure organized
✅ Scripts ready

Next lesson: First Express Server! 🚀