Modern API Design for Web Applications
APIs are the contracts between your front end, mobile apps and backend systems. Good API design keeps those contracts predictable and easy to work with over many years, even as your products evolve.
Modern APIs focus on clear resource naming, consistent error responses, versioning strategies and strong authentication. Many teams now combine REST and GraphQL in the same ecosystem so each client can ask for exactly the data it needs without over fetching.
Before writing any code, map the important flows such as sign up, checkout and reporting, then design the API around those journeys. This makes your apps faster to build and reduces breaking changes later.
