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API-First con Micronaut

Desarrollo orientado al Contrato

API-First con Micronaut
This book is 100% completeLast updated on 2026-08-18
Jorge Aguilera

El código cambia constantemente, pero tus contratos no.

Aprende a construir APIs en Micronaut donde la especificación OpenAPI manda y el compilador garantiza que tu código nunca mienta.

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About

About

About the Book

El desarrollo de APIs REST ha evolucionado. Durante años, el enfoque Code-First, escribir primero los controladores y anotaciones en Java para generar el contrato a posteriori, ha sido la norma.

Sin embargo, este modelo suele derivar en desalineaciones entre el contrato y la implementación, acoplamiento innecesario y fricciones en equipos distribuidos.

Este libro es una guía práctica para adoptar el paradigma API-First utilizando el ecosistema de Micronaut. A través de un proyecto evolutivo (Petstore Lite), aprenderás a desplazar la especificación OpenAPI al centro del proceso de diseño, convirtiéndola en la única fuente de verdad.

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Categories

APIsJavaAPI Design

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License

Creative Commons Attribution-NoDerivatives 4.0 International License

Author

About the Author

Jorge Aguilera

Comencé como programador profesional usando Natural Adabas hallá por los inicios de los 90 y desde entonces he trabajado con C, C++, Java, Groovy y algún otro

Contents

Table of Contents

Bienvenido

  1. Requisitos previos
  2. Ejemplos
  3. Convenciones del libro

ApiFirst

  1. Pilares
  2. Herramientas

Micronaut

  1. ¿Qué es Micronaut?
  2. Singleton e Inject
  3. Quarkus
  4. ApiFirst con Micronaut

Petstore Lite

  1. Persistencia
  2. Entity
  3. Repository

Inicio

  1. Java y Sdkman
  2. Micronaut
  3. 01-petstore-codefirst

Code First

  1. DTOs
  2. Post Pet
  3. Desplegando
  4. Iterando Code First
  5. UseCases

OpenAPI

  1. Estructura básica
  2. Paths
  3. Schemas

Api First con Micronaut

  1. Crear proyecto
  2. Plugin
  3. Construir el contrato
  4. Build
  5. Run
  6. Swagger-UI

Implementando Api First

  1. Iteración 1
  2. Model
  3. Controller
  4. Implementación
  5. Iteración 2

Testing con API-First

  1. Estrategias de testing
  2. Testing con Micronaut

Protección y seguridad

  1. Micronaut Security
  2. Security Schema y Micronaut
  3. Swagger UI
  4. Tests

OpenAPI Client

  1. PokeApi
  2. Micronaut Client
  3. Consumiendo el cliente
  4. HttpClient
  5. Test

Conclusion

  1. Micronaut
  2. Buenas prácticas
  3. El ecosistema Contract-First
  4. Otras APIs
  5. Referencias

Agradecimientos

  1. A mi entorno
  2. A la comunidad Micronaut
  3. A los revisores
  4. A tí

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