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August 27, 2025 • 28 min read • wynnt3o

How to Build a Real-Time Chat App with React.js and Socket.io 2025

Building real-time chat applications has become essential for modern web development. In this comprehensive tutorial, you’ll learn how to create a production-ready chat application from...

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April 19, 2025 • 15 min read • wynnt3o

How to Build a Real-Time Polling System with Spring WebSockets

Introduction In this tutorial, we’ll build a real-time polling system using Spring Boot for the backend and React for the frontend. This system will include advanced features like rate limiting, dynamic UI/UX components,...

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Real-Time ProcessingSpring BootSpring WebSocketsWebSocket

April 5, 2025 • 14 min read • wynnt3o

Build Secure Passwordless Login with WebAuthn and Node.js in 2025

Biometric authentication provides an additional layer of security by using unique biological characteristics, such as fingerprints or facial recognition. In this tutorial, we’ll use WebAuthn, a...

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Biometric AuthenticationJavaScriptMySQLNode.jsPasswordless LoginPWAReactSecurityWebAuthn

March 22, 2025 • 13 min read • wynnt3o

How to Deploy Spring Boot Microservices on AWS ECS with Fargate

Introduction Deploying Spring Boot microservices in production requires careful consideration of scalability, security, and operational complexity. AWS ECS with Fargate eliminates server management while providing...

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Application Load BalancerAWS ECSFargatemicroservicesService ConnectSpring Boot

March 15, 2025 • 17 min read • wynnt3o

Master QueryDSL in Spring Boot 2025

QueryDSL in Spring Boot QueryDSL makes writing database queries in Java safer and easier by replacing string-based queries with type-safe code. During compilation, it scans...

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JPAQueryDSLSpring BootType-safe SQL

March 8, 2025 • 16 min read • wynnt3o

How To Build GraphQL API With Apollo Server Node.js Step By Step 2025

1. Introduction GraphQL allows clients to query only the data they need. Unlike REST, which relies on fixed endpoints, GraphQL provides a flexible approach, allowing...

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api-developmentApollo ServerDataLoaderDockerGraphQLJavaScriptNode.jsWebSocket

March 1, 2025 • 10 min read • wynnt3o

Spring Transaction Management Rollback 2025

Understanding Spring Transaction Management By default, without any transaction management, Spring operates in auto-commit mode. Every single SQL statement executes in its own transaction and...

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@TransactionalDatabaseException HandlingJavaRollbackspring-frameworkTransaction Management

February 22, 2025 • 26 min read • wynnt3o

Laravel Eloquent Relationships Tutorial Blog System

Laravel Eloquent relationships let us define how our database tables are linked, using simple PHP methods instead of complex SQL. They work like bridges between...

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LaravelLaravel EloquentORMPHPRelationships