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While learning Spring and Spring Boot, one of the most fundamental concepts is the Spring Bean. Understanding beans is essential because almost everything in a...
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🏦 Business Scenario Very Common in FinTech Imagine a payment processing service. Before processing a payment, the system must validate: - Account Status activ...
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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...
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