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Express.js API Template
Tech Stack
| Component |
Technology |
| Runtime |
Node.js 20+ |
| Framework |
Express.js |
| Language |
TypeScript |
| Database |
PostgreSQL + Prisma |
| Validation |
Zod |
| Auth |
JWT + bcrypt |
Directory Structure
project-name/
├── prisma/
│ └── schema.prisma
├── src/
│ ├── app.ts # Express setup
│ ├── config/ # Environment
│ ├── routes/ # Route handlers
│ ├── controllers/ # Business logic
│ ├── services/ # Data access
│ ├── middleware/
│ │ ├── auth.ts # JWT verify
│ │ ├── error.ts # Error handler
│ │ └── validate.ts # Zod validation
│ ├── schemas/ # Zod schemas
│ └── utils/
└── package.json
Middleware Stack
| Order |
Middleware |
| 1 |
helmet (security) |
| 2 |
cors |
| 3 |
morgan (logging) |
| 4 |
body parsing |
| 5 |
routes |
| 6 |
error handler |
API Response Format
| Type |
Structure |
| Success |
{ success: true, data: {...} } |
| Error |
{ error: "message", details: [...] } |
Setup Steps
- Create project directory
npm init -y- Install deps:
npm install express prisma zod bcrypt jsonwebtoken
- Configure Prisma
npm run db:pushnpm run dev
Best Practices
- Layer architecture (routes → controllers → services)
- Validate all inputs with Zod
- Centralized error handling
- Environment-based config
- Use Prisma for type-safe DB access
