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...
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5 min read

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...
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4 min read

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...
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9 min read

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...
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12 min read

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...
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1 min read

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...
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2 min read

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...
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1 min read

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...
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1 min read

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...
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1 min read

Factory Pattern in Java Simplified

The Factory Pattern is a creational design pattern that provides an interface for creating objects but allows subclasses or...
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1 min read

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...
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3 min read

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....
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4 min read

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