Gone are the days when an API was just a byproduct of a backend application. Today, APIs are products in themselves. Designing a scalable, secure, and developer-friendly API requires a thoughtful stack. You need tools for documentation (like Swagger/OpenAPI), testing (Postman or Insomnia), and monitoring (Datadog or New Relic).
When building your stack, prioritize 'Design First'. Define your API contract using OpenAPI specs before writing a single line of code. This allows frontend and backend teams to work in parallel. Additionally, consider using tools like GraphQL if your client data needs are complex and variable, though REST remains a solid, cacheable choice for many standard resources.
