Mastering React & Spring Boot for Real-World Impact

Under the hood curiosity Being a good developer is not about memorizing frameworks. It’s about understanding: - How memory works - How threads work - How event loop works - How OS interacts with your code Frameworks change. Fundamentals stay. That mindset leveled me up. #nodejs #softwareengineering #backend

What happens when Spring Boot meets React and logic blends with vibes? 🎧💻 After completing an intensive 12-day Java Full Stack Development training under Ms. Sylvia Charley, I and Kevin K R built something that connects backend brains with frontend feels. Music Suggester – Mood Based 🎶 Upload a song → Spring Boot REST API processes it → Data stored in PostgreSQL → React frontend fetches it using hooks → Music plays according to your mood. Simple idea. Clean execution. Real full-stack flow. What made it special? The sessions weren’t just theory. They were filled with real-time scenarios, practical tasks, and industry-level insights that actually show how IT works in the real world. Learning gives knowledge. Building gives confidence. And this project gave both. 🚀 #FullStackDevelopment #Java #SpringBoot #ReactJS #Backend #Frontend #LearningByBuilding

🛑 Stop writing "spaghetti code" in Node.js Express.js. Express is great, but as your application grows, the lack of structure can become a bottleneck. Enter NestJS. Why I recommend it: - Opinionated Architecture: It forces you to write clean, organized code. TypeScript: Built-in support from the start. - Scalable Structure: Uses modules, controllers, and services (providers) to separate concerns. - It combines the flexibility of Node with the discipline of Object-Oriented Programming. Highly recommended for your next scalable backend project. 🚀 #NestJS #NodeJS #Backend #TypeScript #CleanCode

🚀 How I Solved a Real Spring Boot + React.js Performance Issue This was a case where nothing was broken, but users kept saying: “The app feels slow.” In dev and QA, everything worked fine. In production, under real usage, screens were slow and APIs took longer during peak hours. I didn’t assume the problem was only backend or frontend. On the Spring Boot side, I found APIs returning more data than needed and threads getting busy under load. Cleaning up queries, adding pagination, and tuning thread and connection pools helped stabilize response times. On the React side, some components were re-rendering too often, and large responses were being processed repeatedly. Simplifying state handling and loading heavier UI parts only when needed made the UI smoother. Once both sides were fixed together: Pages loaded faster API responses stayed consistent No extra infrastructure was added Simple takeaway: Performance issues usually come from small things adding up over time. The fix isn’t a single change it’s understanding how the system behaves in production and addressing the real causes. #SpringBoot #ReactJS #Java #FullStackDevelopment #ProductionExperience

Coming from a Java background and diving into the Node.js ecosystem with NestJS has been an eye-opening journey. While the languages are different (TypeScript vs. Java), the core architectural principles are remarkably similar: ✅ Dependency Injection: Keeping components decoupled and testable. ✅ Modular Architecture: Organizing code into logical, reusable blocks. ✅ Decorators/Annotations: Making the code clean and highly readable. As a Backend Developer, I’ve realized that tools may change, but Solid Architecture is a universal language. Whether I’m building with Spring Boot or NestJS, my goal remains the same: scalability and maintainability. Which one do you prefer for building enterprise-grade APIs? Let’s discuss! #BackendDevelopment #NestJS #SpringBoot #SoftwareEngineering #CleanCode

Last month at work, I was given a simple task. “Build the backend.” No APIs. No structure. No starting point. Just… start from scratch. What followed was a real developer rollercoaster: → TypeScript errors everywhere → Missing DB indexes → Debugging auth tokens → GitHub Actions screaming “high priority bug” → Logs. Fixes. Breaks. Repeat. But after days of debugging and learning, everything finally worked. Clean APIs. Faster queries. Green CI. Happy frontend. I wrote about the entire journey — mistakes, fixes, and lessons I wish someone told me earlier. If you’re learning backend or working with Node/TypeScript, this might save you some headaches 🙂 Read here: 👉 https://lnkd.in/gyNnynsZ #Backend #NodeJS #TypeScript #WebDevelopment #Debugging #SoftwareEngineering #Developers

𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁 𝗷𝘂𝘀𝘁 𝗹𝗲𝘃𝗲𝗹𝗲𝗱 𝘂𝗽 🚀 • Run .ts files directly in Node.js — no build step • Native type stripping → 𝘇𝗲𝗿𝗼 𝗿𝘂𝗻𝘁𝗶𝗺𝗲 𝗰𝗼𝘀𝘁 • Cleaner debugging — accurate stack traces, no source maps • Faster dev loops:  𝗘𝗱𝗶𝘁 → 𝗦𝗮𝘃𝗲 → 𝗥𝘂𝗻 • Types are now 𝗱𝗲𝘀𝗶𝗴𝗻-𝘁𝗶𝗺𝗲 𝗽𝗼𝘄𝗲𝗿 — runtime stays clean This is how modern teams ship faster 𝘸𝘪𝘵𝘩𝘰𝘶𝘵 𝘴𝘢𝘤𝘳𝘪𝘧𝘪𝘤𝘪𝘯𝘨 𝘴𝘢𝘧𝘦𝘵𝘺. #TypeScript #NodeJS #DeveloperProductivity #FutureOfWork #EngineeringLeadership #SoftwareArchitecture #CentizenAcademy #Centizen #ZenBasket

A small React realization that reminded me why fundamentals matter 👇 Today I ran into a bug that looked like a TypeScript issue at first: orders.map is not a function I was passing an array to a React component, but inside the component it was suddenly… an object. At first glance, it felt like: 👉 “TypeScript is being annoying again.” But the reality was simpler. React components always receive props as an object — in JavaScript and TypeScript alike. TypeScript didn’t cause the bug; it just caught a flawed mental model earlier. A good reminder that many “TS problems” are really React fundamentals resurfacing. Learning isn’t always about new tools — sometimes it’s about refining how we think. #React #TypeScript #Frontend #LearningInPublic #SoftwareEngineering

React JS — Topics, Patterns, and Projects Hook React is the leading library for building modern UIs — here’s a clear learning path for beginners and improvers. Body Key topics covered: React fundamentals

 Getting Started with Node.js – A Beginner’s Guide Excited to share my latest blog where I explore the fundamentals of Node.js and server-side development. Senthil Kumar Thangavel MentorBridge DHILEEPAN DHANAPAL Medium B. Kethra Packiam Kiruthika G #blog #nodejs #server #mentorbridge #learning https://lnkd.in/gW4GkNxi