DevTech Insights

Migrating from Spring Boot 2.x to 3.x: A Complete Checklist

A practical guide for migrating Spring Boot 2.x apps to 3.x, covering Java 17, Jakarta EE, Spring Security 6, and configuration changes with a step-by-step c...

Spring Boot 3.2+ Features Every Developer Should Know

Explore the latest features in Spring Boot 3.2+ including virtual threads, CDS support, SSL hot reload, and more. Boost performance and developer experience.

Designing Idempotent APIs for Reliable Distributed Systems

Learn how to design idempotent APIs to ensure reliability in distributed systems. Explore key concepts, implementation strategies, and best practices with re...

Backend System Design Interview: Design a URL Shortener

Master the URL shortener system design interview with this comprehensive guide covering requirements, architecture, database schema, and scaling strategies.

Designing RESTful APIs: Best Practices and Common Pitfalls

Learn how to design RESTful APIs that are scalable, maintainable, and developer-friendly. This guide covers best practices, common mistakes, and practical co...

CQRS and Event Sourcing: A Practical Introduction

Learn CQRS and Event Sourcing with practical Java examples. Understand patterns, trade-offs, and when to use them in real-world applications.

Database Sharding 101: When and How to Scale Horizontally

Learn when to use database sharding, how to implement horizontal scaling, and common pitfalls to avoid. A practical guide for engineers.

Designing Resilient Systems: Circuit Breaker and Retry Patterns

Learn how to build fault-tolerant microservices with Circuit Breaker and Retry patterns. Practical Java examples using Resilience4j, best practices, and real...

Event-Driven Architecture with Kafka and Spring Boot: A Practical Guide

Learn how to build a robust event-driven system using Apache Kafka and Spring Boot. Covers architecture, producers, consumers, error handling, and best pract...

Microservices vs Modular Monolith: Making the Right Choice in 2026

Explore the trade-offs between microservices and modular monoliths in 2026. Learn when to decompose, when to stay modular, and how to avoid common pitfalls.