How does it handle API versioning?

It utilizes native Spring Boot 4 versioning attributes within mapping annotations and provides header-based configuration patterns for cleaner API evolution.

How does it handle API error responses?

It implements the RFC 9457 ProblemDetail standard by default, ensuring your API provides structured, machine-readable error responses via @RestControllerAdvice.

Does it support both Java and Kotlin?

Yes, the patterns and examples are designed to work with both Java and Kotlin Spring Boot implementations.

Can I use this for reactive programming?

Absolutely. The skill provides specific implementation patterns for Spring WebFlux, high-concurrency streaming, and R2DBC reactive database integration.

Does this skill support Spring Boot 4 features?

Yes, it specifically includes support for Spring Boot 4 updates such as Jackson 3 (tools.jackson package), @MockitoBean, and native API versioning.

Spring Boot Web API Patterns

Name: Spring Boot Web API Patterns
Author: joaquimscosta

byjoaquimscosta

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API Development

Implements production-grade RESTful APIs using Spring Boot 4 standards, including MVC, WebFlux, and RFC 9457 error handling.

This skill provides comprehensive guidance for building modern Spring Boot 4 web layers, ensuring strict adherence to the latest ecosystem standards like Jackson 3 and Bean Validation 3.1. It streamlines the creation of REST controllers, helps developers choose between imperative (MVC) and reactive (WebFlux) stacks, and enforces industry best practices such as native API versioning and standardized error responses via ProblemDetail. Ideal for developers building scalable microservices, it provides a structured approach to DTO mapping, validation, and automated testing with modern tools like @MockitoBean.

Key Features

01Standardized RFC 9457 ProblemDetail error handling

02Modernized testing setups with @WebMvcTest and @MockitoBean

03Native API versioning and content negotiation

04Spring Boot 4 MVC and WebFlux implementation patterns

05Request validation using Bean Validation 3.1

063 GitHub stars

Use Cases

01Building high-concurrency reactive APIs using Spring WebFlux and R2DBC

02Migrating legacy Spring Boot applications to Spring Boot 4 and Jackson 3

03Implementing standardized global exception handling across microservices

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add joaquimscosta/arkhe-claude-plugins spring-boot-web-api

For use in Claude.ai and ChatGPT

Download Skill