Backend

Table of Contents Introduction The Appeal of Shortcuts When the Library Does Much More Than You Need (Bloat) The Invisible Weight on Performance: Where Libraries Really Affect the Service 4.1. Initialization Overhead 4.2. Unnecessary Memory Consumption 4.3. Abstractions That Hide Costs 4.4. Accumulated Latency in Microservices Transitive Dependencies: The Silent Domino Effect Updating Is Easy — Until It Isn’t How to Decide If It’s Worth Using a Lib Best Practices to Reduce Risks Conclusion 1. Introduction In modern development, it’s almost natural to turn to external libraries for productivity gains. They reduce rework, accelerate delivery, and allow teams to focus energy on what truly generates value. However, this decision, which seems simple and pragmatic at first, carries a frequently ignored consequence: each import brings with it a future cost, especially when it comes to production performance. ...

Table of Contents Why Spring Boot Changed Java Development? What You Will Learn Setting Up Creating the Project: Three Possible Ways Understanding the Project Structure The Main Class: The Heart of the Application Running for the First Time Creating Your First REST API Working with JSON: The Modern Web Standard Creating a Resource List Customizing Configurations Organizing Code: Layered Architecture Next Steps in Your Journey Golden Tips for Beginners Complementary Resources Conclusion 1. Why Spring Boot Changed Java Development? Imagine being able to create a complete web application in Java without having to configure dozens of XML files or getting lost in complex configurations. This was exactly the dream of every Java developer a few years ago — and Spring Boot made it a reality. ...