Anyone can write an API that works on their machine. But building one that’s dependable, predictable, and scalable? That’s where real experience matters.
Here’s how I approach bulletproof API design—whether I’m building in Rails, Go, or Node.js.
🎯 Design for Clarity and Change
- Start with a spec. I use OpenAPI or GraphQL schemas to define what success looks like before I write any code.
- Version your endpoints. I default to
/v1/...and make upgrades opt-in. - Use nouns, not verbs. Stick to RESTful patterns where possible:
GET /users,POST /invoices, etc.
🔐 Security by Default
- Enforce token-based auth (usually JWT or OAuth).
- Rate-limit requests and protect sensitive routes.
- Validate all inputs with strong schemas (e.g., dry-validation, Zod, etc.).
- Avoid leaking stack traces or internals in error messages.
🧱 Use Strong Foundations
I choose tools and frameworks with solid ecosystems and predictable performance:
- Ruby on Rails — Great for fast iteration and convention-driven APIs.
- Go (Golang) — My choice for high-throughput microservices.
- Node.js — Flexible for real-time or event-based architectures.
📊 Think About Clients
APIs aren’t just for frontend apps. They’re used by:
- Mobile apps
- Webhooks
- External partners
So I provide:
- Clear error formats
- Filter/sort/pagination patterns
- Comprehensive examples in docs
🛠️ DevOps & Monitoring
- Deploy behind a proxy (e.g., Nginx, Cloudflare)
- Log structured responses and track usage
- Set alerts for spikes or failures
✅ TL;DR
Building APIs that work in production means:
- Designing first, coding second
- Securing every layer
- Thinking about consumers, not just the code
Need a rock-solid backend API? Email me to get started.