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 Multiple Threading using CompletableFuture and allOf Method: A Comprehensive Guide with Examples
Java introduced the CompletableFuture class in version 8 as part of the java.util.concurrent package. This class enables asynchronous programming and allows...
Using @Modifying and @Transactional in Spring JPA
Spring Data JPA provides powerful annotations like @Modifying and @Transactional to perform update and delete operations efficiently. These annotations allow modifying...
A Complete Guide For CRUD Operations Using Spring JPA with Native Queries
Spring Data JPA provides an abstraction over traditional JPA, making database interactions easier. While JPA’s derived and JPQL queries are powerful,...
Using @Primary and @Qualifier in Spring Boot with Full Example
Spring Boot provides powerful dependency injection features, allowing developers to manage beans effectively. Two key annotations, @Primary and @Qualifier, help resolve...
Understanding the use API in React 19 with Examples
React 19 introduces a powerful new API called use, which simplifies handling asynchronous operations in components. This API enables developers to...
Understanding use client and use server in React 19
Introduction React 19 introduces a refined approach to handling client and server components with the explicit directives "use client" and "use...
How to use React’s useActionState Hook
The useActionState hook in React 19 enables developers to directly manage state updates triggered by predefined actions. It’s like a simplified...
How to Marshalling and Unmarshalling Java Objects
Introduction Marshalling and unmarshalling are essential processes in Java when working with object serialization and data exchange. Marshalling refers to converting...
Microservices Based System with API Gateway and Rate Limiting in Java
In modern application architectures, microservices provide scalability, modularity, and ease of development. To manage communication between services and ensure security, an...