🚀 Spring I/O 2025 Recap – Victor Rentea on 10 REST API Design Pitfalls
Spring I/O took place on 22–23 May 2025 in Barcelona, and as always, it delivered some incredible content for the developer community. Among the highlights was a very engaging talk by Victor Rentea, where he shared his insights on the Top 10 REST API Design Pitfalls.
Victor’s session was packed with practical advice that every developer who builds or consumes APIs should know. He covered:
Breaking changes — what they are, why they hurt, and how to avoid them.
API versioning — different techniques to manage evolving APIs without disrupting clients.
Overly complex APIs — why trying to build overly generic schemas (or no schema at all) often creates more problems than it solves.
Contract mismatches — how to detect them early using tools like OpenAPI-diff.
Performance pitfalls — common mistakes that can slow down APIs, or create security issues, and how to avoid them.
And that was just the beginning, his talk included plenty more valuable lessons for designing robust and maintainable APIs.
👉 You can watch the full session here: Top 10 REST API Design Pitfalls by Victor Rentea @ Spring I/O 2025
💡 Enjoyed this recap?
Subscribe for free to get more articles on Java, backend development, and software design best practices.