#spring boot
16 articles tagged spring boot.
System Design: Building a Notification Service for 50 Million Users
A complete system design walkthrough — from blank page to production architecture — covering fan-out, multi-channel delivery, rate limiting, retry logic, and the trade-offs engineers get wrong in interviews and production.
The Modular Monolith: The Java Architecture Most Teams Should Be Using
A practical guide to the modular monolith in Java and Spring Boot — package structure, enforced module boundaries, domain events, and the honest case for why it beats microservices for most teams.
Designing the AI Request Pipeline: 8 Layers Between User Input and Your LLM
A production architecture blueprint for every layer between a user's message and a safe, reliable LLM response — with Spring Boot code you can actually use.
We Let Claude Code Refactor Our 200K-Line Java Monolith. Here's the Honest Result.
A real post-mortem on 6 weeks of AI-assisted refactoring — what it got right, what it silently broke, what we'd do differently, and the hybrid model we actually shipped.
Feature Flags for AI: The Deployment Pattern That Saved Us From 3 Production Disasters
Why LLM features need flags more than anything else you've ever shipped — and the four flag patterns that let us swap models, A/B test prompts, and kill broken AI features in under 60 seconds.
10 Spring Boot Mistakes That Silently Kill Production Apps
A practical breakdown of the most common Spring Boot anti-patterns that cause degraded performance, memory leaks, and outages — with before/after code, real query plans, and how to catch them before they reach production.
Java Developer Roadmap 2026: What to Learn, What to Skip
A practical, opinionated roadmap for Java developers in 2026 — covering Java 21-24 features, Spring Boot 3, virtual threads, AI integration with Spring AI, cloud-native patterns, and what to stop wasting time on. Organized by experience level.
Your Spring Boot App Starts in 3 Seconds. With GraalVM Native, It's 80ms.
A practical, no-handwaving guide to compiling Spring Boot 3 apps to native executables — real benchmark numbers, common pitfalls, and when it's actually worth it.
We Replaced Spring WebFlux with Virtual Threads. Here's the Honest Result.
After 3 years of reactive streams in production, we migrated four services from WebFlux to Spring Boot + virtual threads. Code complexity halved, p99 latency dropped 34%, onboarding time for new engineers went from weeks to days. Here's exactly what we did — and what we kept reactive.
Building a Spring Boot Microservices Project from Scratch (Complete Guide)
A complete walkthrough of building a production-ready microservices system with Spring Boot — covering service decomposition, API gateway, service discovery, Docker Compose, inter-service communication, and real code throughout.
Java 21 Virtual Threads: A Practical Guide for Spring Boot Developers
Virtual threads are Java 21's biggest performance upgrade in years — but most guides skip the real-world details. Here's what actually matters: when to use them, how they work with Spring Boot, common pitfalls, and benchmark data.
Microservices Done Right: Patterns I've Learned from 12 Years of Enterprise Architecture
Real-world patterns, anti-patterns, and hard lessons from designing and delivering microservices for global enterprises — from service decomposition to event-driven architecture to the observability you'll wish you had from day one.
Spring Boot Complete Architecture Guide: From Foundation to Spring AI
A comprehensive end-to-end guide to Spring Boot architecture for experienced developers — IoC, AOP, security, data, resilience, testing, Spring AI, and production deployment — with diagrams and production-quality code throughout.
Spring Boot 3 New Features: What Every Java Developer Should Know
A practical tour of Spring Boot 3's biggest upgrades — native compilation with GraalVM, virtual threads, the Observability API, HTTP interface clients, and Problem Details — and when each actually matters.
Virtual Threads in Spring Boot: What Changes and How to Use Them
Java 21's virtual threads let Spring Boot handle massive concurrency for I/O-bound work without going reactive. How to enable them, when they help, and the pitfalls to avoid.
Modern Java for Backend Developers: The Features That Actually Matter
A practical tour of the modern Java features backend developers should be using now — virtual threads, pattern matching, records, sequenced collections — and why upgrading to a recent LTS pays off.