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REST & GraphQL APIs

We craft hyper-efficient, strictly typed API layers that serve as the indestructible backbone for web, mobile, and IoT clients.

Answer summary

BuildDigital engineers REST, GraphQL, and tRPC APIs with sub-100ms median latency using Node.js, TypeScript, and Postgres — with type-safe contracts (Zod, OpenAPI 3.1), rate limiting, and comprehensive observability out of the box. Every API ships with SDK generators for TypeScript/Python clients and integration tests that block deploys on regression.

The Backbone of the Digital World

An application is only as fast and reliable as the API that powers it. Poorly designed APIs result in data over-fetching, agonizing latency, and severe security vulnerabilities. A world-class API must be predictable, versioned, and blisteringly fast.

Our API Engineering Standards

We construct APIs that developers love to consume and hackers fail to exploit.

  • End-to-End Type Safety: Using tools like tRPC, Zod, and GraphQL Code Generator, we guarantee that the contract between the frontend and backend is strictly typed, eliminating entire classes of runtime errors.
  • GraphQL for Complex Data: For applications requiring deep relational data retrieval, we implement federated GraphQL servers (Apollo) to prevent N+1 query problems and minimize payload sizes.
  • Advanced Caching: Implementing Redis layers and edge caching (Cloudflare/Vercel) to ensure sub-100ms response times globally.

Frequently Asked Questions

Should I use REST or GraphQL for my API?

Use REST for public APIs, third-party integrations, and simple CRUD — it's cacheable, universally understood, and works with any HTTP client. Use GraphQL for internal APIs powering complex UIs where clients need flexible data shapes. Use tRPC for full-stack TypeScript apps where end-to-end type safety matters more than public consumption.

How do you handle API rate limiting and security?

Every API ships with Redis-backed rate limiting (per-key + per-IP), OAuth 2.0 or API key auth, request signing for sensitive endpoints, IP allowlisting for enterprise clients, and audit logging of every mutation. We also implement OWASP API Top 10 mitigations by default.

Do you provide API documentation?

Yes. Every REST API ships with an OpenAPI 3.1 spec that generates typed clients in TypeScript, Python, and Go. Every GraphQL API ships with GraphiQL Explorer plus generated schema docs. We include interactive API playgrounds and code samples in the client-facing developer portal.

Ready to build your rest & graphql apis?

Backed by 3+ years of proven delivery, we deliver clean code, modern UI UX design, and on-time market-ready solutions. Let's discuss your custom enterprise architecture today.

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