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

🛑 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

The React ecosystem moved fast this week. One team cut local dev load times by 83% after migrating from Next.js to TanStack Start. The State of JS 2025 results just dropped. Deno Deploy went GA. And an open-source AI agent hit 100K GitHub stars in 2 days. I broke it all down in this week's Top 5 in React & AI newsletter 👇 https://lnkd.in/gj_jxxXr 🔥 Next.js → TanStack Start: Inngest documented their full migration, why they left, how they did it in 2 weeks with one engineer, and what they'd do differently. The key insight: TanStack's explicit loader pattern makes client/server boundaries dramatically clearer. 📊 State of JS 2025: 13,000 responses. Cursor is now the #2 editor. Nearly 30% of code is AI-generated. And React issues remain the #1 pain point for frontend developers. 🚀 Deno Deploy is GA: Zero-config deploys for any JS framework. Plus the new Deno Sandbox which is a lightweight Linux microVMs that boot in under a second, built specifically for running LLM-generated code safely. 🦞 OpenClaw: The open-source autonomous AI agent (formerly Moltbot/Clawdbot) that went viral. 100K GitHub stars faster than React, Linux, or Kubernetes ever did. Worth knowing about. 🎯 Plus: Nadia Makarevich on whether AI can actually replace an experienced debugger (spoiler: it depends on the bug), and a build tutorial on generative UI dashboards in React using Tambo. The full issue is linked in the comments. ♻️ Repost if this was useful. And if you're not subscribed yet, link is in comments #React #WebDevelopment #JavaScript #TanStackStart #NextJS #Frontend

I've been building production-grade applications with Node-RED at work for a while now, drag, drop, connect. It works, and I'm good at it. But I know that Node.js is what the industry expects. So I decided to stop being comfortable and start building with it properly. Here's what I set up till now: → Designed a full MVC project structure → Built server.js and app.js from the ground up → Connected Node.js to MySQL using mysql2/promise → Designed a production-grade users table with proper auth schema → First GitHub commit pushed The project is a Sweet Shop Management System using auth, sweets CRUD, and inventory management etc. The biggest mindset shift so far? In Node-RED I think in flows. In Node.js I felt I was thinking in layers. Same logic, different expression. Just getting started. Here's my Git repo :- https://lnkd.in/dNdUHwHD #NodeJS #JavaScript #BackendDevelopment #LearningInPublic #WebDevelopment

If you’re learning Full-Stack Development, don’t just learn the basics — learn what’s MODERN. Many beginners think full-stack is just 👉 React on frontend 👉 Node on backend But today’s production apps demand much more 👇 Here’s what you should actually focus on: 👉 Next.js App Router + Server Components Build faster apps with SSR, streaming, and server actions — not just client-side React. 👉 NestJS Structured Backend Forget messy Express code. NestJS gives you real architecture: modules, controllers, services, guards. 👉 TypeScript Everywhere Frontend + Backend with TypeScript = fewer bugs, better scalability. 👉 Authentication & APIs JWT, role-based access, REST APIs — real-world skills that companies expect. 👉 Database Integration MongoDB / SQL + Prisma / Mongoose — data handling is core full-stack work. 👉 Performance & Clean Architecture Not just “working code” — scalable, maintainable systems. 💡 Modern Full-Stack isn’t about knowing tools. It’s about building real products with real structure. Next.js + NestJS is a powerful combo — and learning it properly makes you job-ready. Keep learning. Keep building. 🚀 #FullStackDeveloper #NextJS #NestJS #WebDevelopment #JavaScript #TypeScript #LearningInPublic #SoftwareEngineering #100DaysOfCode

🚀 Day 1 – Backend Journey Begins (Node.js) Today, I officially started strengthening my backend fundamentals as part of my journey to becoming a well-rounded Full-Stack Engineer. Completed: Episode 01 – Introduction to Node.js Here’s what I learned today: • Node.js is not a programming language — it’s a runtime environment that allows JavaScript to run outside the browser. • It uses Google’s V8 engine to execute JavaScript efficiently. • Unlike traditional server models, Node.js uses a non-blocking, event-driven architecture. • Because of its asynchronous nature, it is highly efficient for scalable, I/O-heavy applications. • JavaScript can now power both frontend and backend — enabling full-stack development with a single language. As someone working deeply in React and frontend architecture, understanding how the server processes requests gives me a stronger foundation to build better systems end-to-end. This is Day 1 of documenting my backend journey publicly. Consistency and depth over shortcuts. #NodeJS #BackendDevelopment #FullStackDeveloper #JavaScript #LearningInPublic #SoftwareEngineering

This February , I focused on NNN. Next.js, NestJS, NeonDB 😎 I’ve worked with React and Node.js for a long time. But one thing I’ve realised, constantly staying updated with the latest tech, helps in making coding easier because of better architecture and better tools. These are the best things that stood out to me in these tools: ►𝐍𝐞𝐱𝐭.𝐣𝐬 - SSR is cool and also, Dynamic routing makes the folder structure clean and easily manageable ►𝐍𝐞𝐬𝐭.𝐣𝐬 - Clean code, Dependency injection, and decorators are my new favorites. ►𝐍𝐞𝐨𝐧𝐃𝐁 - Database Branching (DAMN), You can actually create branches in your database and also TIME TRAVEL (Returning you database to a previous state in time. INSANE) This stack changed how I think about writing scalable systems. More structure. More long-term thinking. Feb was about leveling up stack, Now time for new adventure. March plan - Diving into 𝗔𝗪𝗦 𝗖𝗹𝗼𝘂𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁. Also I'm thinking of picking up a new language, probably 𝙂𝙤 𝙤𝙧 𝙍𝙪𝙨𝙩 Which one would you suggest?? 👀 #FullStack #NextJS #NestJS #Postgres #SystemDesign #BuildInPublic

🚀 Ever wondered why your Node.js code executes in a "weird" order? Understanding the Event Loop priority is a hallmark of a Senior Developer. If you’ve ever been confused by why a Promise resolves before a setTimeout, this breakdown is for you. Here is how Node.js prioritizes your code: ⚡ Bucket 1: The "Interrupters" (Microtasks) These don't wait for the loop phases. They jump to the front of the line as soon as the current operation finishes. process.nextTick(): The ultimate priority. It runs even before Promises. Promises (.then/await): Runs immediately after the current task and before the loop moves to the next phase. ⚡ Bucket 2: The "Phased" Loop (Macrotasks) This is the heart of the Event Loop managed by libuv. It moves in specific stages: 1️⃣ Timers Phase: Handles setTimeout and setInterval. 2️⃣ Poll Phase: The engine room. This is where Node.js handles I/O (Network, DB, File System) and "waits" for data. 3️⃣ Check Phase: This is where setImmediate lives. It’s designed to run specifically after I/O events. 💡 Key Takeaway: Inside an I/O callback, setImmediate will always run before a 0ms setTimeout. #Nodejs #BackendDevelopment #Javascript #SoftwareEngineering

Node.js is NOT a language. It took me way too long to understand this. When I first started learning backend, I thought Node.js was just “JavaScript for servers.” That’s incomplete. Node.js is a runtime environment. It allows JavaScript to run outside the browser. That’s it. JavaScript is the language. Node.js is the engine that executes it on your machine or server. And once that clicked, everything made more sense. Here’s what Node.js actually does: • It uses Google’s V8 engine (the same engine Chrome uses) • It provides APIs to interact with the file system • It lets you handle HTTP requests • It allows networking, streams, processes, and more • It runs on a single-threaded, event-driven, non-blocking architecture That last point? Game changer. Node doesn’t create a new thread for every request. It uses an event loop. Which means: It’s lightweight. It’s fast for I/O-heavy operations. It’s perfect for APIs, real-time apps, streaming, and microservices. But here’s the part most people miss: Node.js is NOT “just backend.” With Node you can: • Build backend APIs (Express, Fastify) • Build real-time apps (Socket.io) • Build CLI tools • Automate tasks • Run build tools (Webpack, Vite, etc.) • Power frontend frameworks (Next.js, Remix) • Even build desktop apps (Electron) When you install npm packages… When you run npm run dev… When you build a React app… You’re using Node. Understanding Node properly changes how you see the JavaScript ecosystem. It’s not “frontend vs backend.” It’s one language. Multiple environments. If you're learning full stack, don’t just “use” Node. Understand: • The event loop • Non-blocking I/O • How require/import works • What actually happens when a request hits your server That’s where real backend confidence starts. Next in my 21-day backend journey: Breaking down the Node.js event loop in simple terms. #NodeJS #BackendDevelopment #FullStackDeveloper #JavaScript #BuildInPublic #Sheryians

🚀 Day 1 – Revisiting Node.js Core Concepts Today, I revised the core fundamentals of Node.js to strengthen my backend foundation and improve code quality. 🔹 What I revised today: ✅ Node.js Overview Node.js is a JavaScript runtime built on Chrome’s V8 engine, used to build fast and scalable server-side applications. ✅ Single-Threaded & Event-Driven Model Node.js uses a single thread but handles multiple requests efficiently using asynchronous and non-blocking operations. ✅ Non-Blocking I/O Operations like database queries or file system tasks do not block the main thread, improving overall performance. ✅ Event Loop Basics The Event Loop manages asynchronous tasks and enables Node.js to scale efficiently. 📌 Key Takeaway Revisiting Node.js fundamentals helps in writing better, optimized, and production-ready backend code. 💡 I’ll continue revising advanced Node.js topics and share my learning regularly. #NodeJS #BackendDeveloper #it #job #JavaScript #Revision #LearningJourney