Code Driven Architect

Spring Security Basics – A Practical Guide for Java Developers Spring Security Basics – A Practical Guide for Java Developers By Ganesh, Java Architect with 25+ years of hands-on experience Security is not an option — it's a must-have for every modern application. Whether you’re building a login page or securing REST APIs, Spring Security gives you a powerful and customizable security framework. But for junior developers, it can feel overwhelming at first. In this post, I’ll walk you through the absolute basics of Spring Security — what it is, why it matters, and how to get started with real code examples. Let’s make it practical, not theoretical. 🚀 What Is Spring Security? Spring Security is a framework that handles: Authentication (Who are you?) Authorization (What are you allowed to do?) Protection against common attacks (CSRF, CORS, XSS, etc.) It integrates deeply with Spring Boot and can secure web pages, REST APIs, or even method call...

Building and Deploying Spring Boot Microservices on AWS – Step-by-Step Building and Deploying Spring Boot Microservices on AWS – Step-by-Step Written by: A Java Architect with 25 years of hands-on experience, simplifying cloud for juniors. If you're a Java developer starting your cloud journey, you're in the right place. In this guide, I'll walk you through the entire process of building and deploying a Spring Boot microservice to AWS. We'll start from scratch — no assumptions about DevOps or AWS mastery — and by the end, you'll have your first cloud-deployed service live and accessible. Table of Contents What is a Microservice? Why Spring Boot? Why AWS for Deployment? Step-by-Step Guide Adding Health Checks & Logs What's Next? What is a Microservice? Imagine an e-commerce site like Amazon. Instead of one huge application, it’s split into smaller parts: Payment Service Order Service Product Servic...