Java
Just Java in general
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...
Distributed Tracing Made Easy with Spring Cloud Sleuth: A Complete Example
Modern microservice architectures often involve multiple services communicating with each other through HTTP, messaging systems, or event streams. Debugging issues across...
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...
Factory Pattern in Java Simplified
The Factory Pattern is a creational design pattern that provides an interface for creating objects but allows subclasses or dedicated factory...
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...
Spring Boot DevTools and Hot Reload: Boost Development Efficiency
When building modern applications with Spring Boot, developers often make frequent changes to code, configurations, and templates. Restarting the application manually...