OpenAPI spec first development

Write OpenAPI specifications first, then generate Spring Boot controllers and models automatically. This section covers the envelope pattern for consistent API responses and using openapi-generator to keep code and documentation in sync.

📄️OpenAPI Specification

Define an OpenAPI specification that describes the API contract before writing any implementation code, using the envelope pattern for consistent responses.

📄️OpenAPI Generator

Use openapi-generator to automatically generate Spring Boot controllers and DTOs from your OpenAPI specification instead of writing them by hand.