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...
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...
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...
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...
ReactJS + Tailwind CSS: Full Tutorial with Example & Project Structure
Combining ReactJS with Tailwind CSS gives you the power of fast, utility-first styling in a modern front-end framework. In...
Styling in ReactJS – A Complete Guide with Example and Project Structure
When developing applications in ReactJS, styling plays a crucial role in both the visual appeal and maintainability of your...
Understanding useRef and Refs in ReactJS (With Full Examples)
When building React applications, there are situations where you may need to directly access or interact with a DOM...
Using Multiple useEffect Hooks in a Single React Component
React’s useEffect hook allows functional components to perform side effects such as data fetching, subscriptions, or manually changing the...
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...
Factory Pattern in Java Simplified
The Factory Pattern is a creational design pattern that provides an interface for creating objects but allows subclasses or...
Building a REST API with Java, Spring Boot, and PostgreSQL – Best Practices & Full Example
Developing RESTful APIs is a cornerstone of modern backend development. When using Java, Spring Boot is the go-to framework...
Deploying Java AWS Lambda to Multiple Environments Using AWS SAM, Parameter Store, and One Codebase
Managing multiple environments (like dev and prod) with one codebase is a common challenge when building AWS Lambda functions....All Articles
Java 11 Local-Variable Syntax for Lambda Parameters
Java 11 introduced a fantastic feature—Local-Variable Syntax for Lambda Parameters—designed to make coding simpler, cleaner, and more consistent. This enhancement builds...
How to chop a list into small chunks in Java?
Pagination is useful when dealing with large datasets, allowing us to process or display data in chunks rather than all at...
How to use ReactJS with Redux Toolkit for state management?
State management is a critical part of any modern React application, and Redux has been a popular solution for managing the...
Java 8 Functional Interfaces
Introduction Java 8 introduced Functional Interfaces, a core feature that enables functional programming in Java. Functional interfaces are used extensively in...
Spring WebClient vs RestTemplate
Introduction Spring Boot provides two primary ways to make HTTP calls: RestTemplate and WebClient. While RestTemplate has been a long-standing option,...
Spring Boot Dependency Injection: A Comprehensive Guide
Introduction Dependency Injection (DI) is a core concept in Spring Boot that promotes loose coupling and enhances code maintainability. It enables...
Spring Boot Profile Feature: A Comprehensive Guide
Spring Boot provides the Profile feature to configure different environments such as development, testing, and production.
Java 8 Lambda Expressions: A Comprehensive Guide
Java 8 introduced lambda expressions, which provide a clear and concise way to represent anonymous functions. Lambdas help in reducing boilerplate...