🏦 Business Scenario Very Common in FinTech Imagine a payment processing service. Before processing a payment, the system must validate: - Account Status activ...
markdown !Cover image for Getting Started with Spring Boot: A Beginner’s Guidehttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,f...
Introduction Imagine you order food using an app. You don’t stare at the screen doing nothing—you scroll social media, reply to messages, or watch a video whil...
Introduction Think about filling out a signup form online. Some fields like username and password are mandatory, while others like profile description or prefe...
Introduction Imagine you’re filtering products on an e-commerce site. You select ORDER=ASC or ORDER=DESC from a dropdown. Behind the scenes, your backend needs...
Quarkus vs Spring Boot Quarkus e Spring Boot são dois dos frameworks Java mais populares para desenvolvimento de aplicações modernas. Enquanto Spring Boot é um...
The Problem You annotate @Transactional on a critical method, run your tests, and everything looks fine. But when you check the transaction log you see no tran...
markdown !realNameHiddenhttps://media2.dev.to/dynamic/image/width=50,height=50,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%...
The Problem with the Status Quo When you look online for Spring Boot blog solutions, you find two extremes. On one side, there are massive CMS platforms like E...
In the World of Spring Boot Development, We Are Often Seduced by “Magic” We love the annotations that make 50 lines of boilerplate vanish. We love the auto‑con...
Introduction If you’ve ever started learning Java programming for backend development, chances are you’ve heard people casually say, “Just use Spring Boot.” Bu...
Spring Security + Keycloak – JWT Validation Overview Keycloak issues signed JWT access tokens and your Spring Boot services validate those tokens locally using...
