Xiaolin Talks Programming

Jul 3, 2026 · Backend Development

API Versioning & Smooth Migration: Spring Boot Routing Strategies and Production Governance

This article presents a comprehensive production-grade approach to API version management in Spring Boot, covering version identification strategies, custom routing via RequestCondition, DTO isolation with MapStruct, deprecation interceptors with Prometheus metrics, gateway-level traffic splitting using Spring Cloud Gateway and Nginx, and a lifecycle state machine with automated retirement rules.