springboot
End to End Logging in Spring Boot with Sleuth and AOP
Modern applications need more than just “this method was called.” Developers need visibility into what data flows through their services, and...
Scaling Spring Boot on ECS with a Shared PostgreSQL Database: Patterns for Safe Concurrency
Multiple identical application containers talk to a single Postgres DB. Without coordination you risk: Goal: ensure correctness (no data corruption or...
Spring Cloud AWS and AWS SSM Parameter Store and AWS Secrets Manager from Spring Boot and Java
This is a spring cloud implementation from this article https://lotusteksolution.com/2025/09/09/how-to-use-aws-ssm-parameter-store-and-aws-secrets-manager-from-spring-boot-and-java/ This tutorial uses Spring Cloud AWS property mapping (so Parameter Store...
How to use AWS SSM Parameter Store and AWS Secrets Manager from Spring Boot and Java
A practical, hands-by-step article showing how to fetch configuration stored in AWS Systems Manager Parameter Store (SSM) and AWS Secrets Manager...
Factory Pattern using Java and Spring Boot web application
Let’s take the Factory Pattern and apply it to a Spring Boot web application. Let’s use a more real-world case: suppose...
Validation in Spring Boot REST APIs — A Complete Guide
Building RESTful APIs often involves handling client input. To ensure data integrity and prevent invalid values from polluting your system, Spring...
Designing an Event-Driven Architecture in Java with Spring Boot
In today’s distributed systems world, responsiveness, scalability, and loose coupling are top priorities. Event-Driven Architecture (EDA) is a powerful design paradigm...
Spring Boot Microservice Using Lombok
Writing clean and maintainable code is essential in any Java application, especially in microservices where modularity and simplicity matter most. The...
Using @Async in Spring Boot for Asynchronous Processing
Spring Boot provides the @Async annotation to execute methods asynchronously. This improves application performance by freeing up the main thread while...