The API Development Challenge
Building robust APIs involves many repetitive tasks: endpoint design, validation, error handling, documentation. Claude helps automate the boring parts.
Phase 1: Schema Design
I describe my data requirements in plain English and ask Claude to generate:
- Database schema (SQL or ORM models)
- TypeScript interfaces
- Validation schemas (Zod/Yup)
Phase 2: Endpoint Generation
With the schema defined, I request endpoint implementations:
// Example prompt
"Generate CRUD endpoints for the User model using:
- Express.js
- Prisma ORM
- Proper error handling
- Input validation
- TypeScript types"Phase 3: Documentation
Claude generates OpenAPI specs from my implementations, ensuring docs stay in sync with code.
Key Techniques
- Iterative refinement: Start simple, add complexity
- Pattern consistency: Define patterns once, apply everywhere
- Test generation: Request tests alongside implementation
My CLAUDE.md for API Projects
# API Standards
- Use REST conventions
- Implement proper HTTP status codes
- Include rate limiting
- Log all errors with context
- Use dependency injection