Developers use application programming interfaces to hide complexity, organize code, design reusable components, and connect different systems, applications, or services.

The secret to API-first is working API-first. Don’t tack on an API interconnectivity mandate to any product after it has reached the level of fully-blown, go-live development and deployment.

With Cadl, you can write a 500-line OpenAPI definition in 50 lines of code. It’s a logical way for architects and developers to construct and constrain APIs.