Building scalable APIs for modern applications
Versioning, pagination, consistent errors, and background jobs — patterns that keep APIs maintainable as products grow.
6 min read
An API is a contract. When that contract drifts — inconsistent field names, surprise breaking changes, undocumented errors — every client becomes harder to maintain.
Good APIs use predictable response shapes, explicit pagination for lists, and versioning when external consumers depend on you. Authentication should be boring and well documented.
Heavy work belongs in background jobs: emails, reports, image processing, integrations with third parties. Synchronous requests should stay fast and focused.
Whether you choose REST or GraphQL, the principles are the same: model the domain clearly, document what you ship, and test the paths that matter for revenue and user trust.