Fastify vs Express.js: Performance Comparison

🚀 Why Express.js? Express.js is a fast, minimal, and flexible Node.js framework that simplifies building backend applications. It helps you handle HTTP requests, routes, and middleware efficiently. #ExpressJS #NodeJS #BackendDevelopment #WebDevelopment #JavaScript

🚀 Node.js is single-threaded… so how does it handle thousands of requests at the same time? I recently explored the Node.js Event Loop and it completely changed how I understand backend performance. Here’s a simple breakdown: ✔ Timers → Executes setTimeout / setInterval   ✔ Pending Callbacks → Handles system callbacks   ✔ Poll (⭐ most important) → Processes I/O events   ✔ Check → Executes setImmediate   ✔ Close Callbacks → Cleanup phase  💡 The real magic happens in the “poll” phase. While working on backend APIs, I often used async/await but never fully understood what happens internally. This cleared a lot of confusion. 🔗 Read the full article here: https://lnkd.in/dTtFG6SF Have you explored the event loop deeply? #NodeJS #BackendDevelopment #JavaScript #FullStack #WebDevelopment

A simple shift in how you handle API calls can make a huge difference ⚡ In Node.js, running async operations sequentially increases latency. By switching to Promise.all(), you execute independent calls in parallel — improving speed and scalability. ✅ Faster responses ✅ Better throughput ✅ Cleaner async handling Sometimes, performance wins come from small architectural decisions. #NodeJS #AsyncProgramming #JavaScript #Performance #Backend

🚀 Shipped helping-js v2 🎉 A new version of helping-js is now available with powerful improvements to make validation and utilities easier across modern JavaScript apps. ✨ What’s new in v2 • validate(obj, rules) API — now supports both functions and regex patterns • Form preset: helping-js/preset/form for one-line form validation • Full TypeScript support • Improved documentation and examples ⚙️ Works seamlessly with modern stacks: Node.js • Express • Vue 3 • React • Vite • Next.js • CRA • CDN Give it a try: npm install helping-js 🔗 GitHub https://lnkd.in/e_QCX6YG 📚 Documentation https://lnkd.in/dYAXg8zZ Feedback and contributions are always welcome! #javascript #opensource #webdevelopment #nodejs #typescript #vuejs #reactjs #frontend #npm #developers

🚀 I Finally Understood the Node.js Event Loop And it made Node.js make so much more sense. Most developers use Node.js daily. But very few understand what happens behind the scenes. Here are 3 things I learned today 👇 🔹 1. Node.js Uses libuv libuv powers the event loop and handles async tasks like: • File operations • Network requests • Timers This is why Node.js is non-blocking and scalable. 🔹 2. Before the Event Loop Starts Node.js first: • Initializes the environment • Executes top-level code • Loads modules (require / import) • Registers callbacks Only then does the event loop begin. 🔹 3. Event Loop Phases Once running, Node.js processes tasks in phases: 1️⃣ Timers 2️⃣ I/O callbacks 3️⃣ Polling 4️⃣ setImmediate 5️⃣ Close callbacks Understanding this helps write better async code. Big thanks to Hitesh Choudhary, Piyush Garg, Jay Kadlag for the amazing explanation. #NodeJS #JavaScript #BackendDevelopment #WebDevelopment

🚀 𝗡𝗼𝗱𝗲.𝗷𝘀 𝘃𝘀. 𝗘𝘅𝗽𝗿𝗲𝘀𝘀.𝗷𝘀 — 𝗞𝗻𝗼𝘄 𝘁𝗵𝗲 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝗰𝗲! A common question for those starting with backend development: "Should I use Node or Express?" The truth is, it’s not an "Either/Or"—it’s an "And." 👉 The Engine vs. The Toolkit 🛠️ 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗶𝘀 𝘁𝗵𝗲 𝗘𝗻𝗴𝗶𝗻𝗲 It’s the JavaScript runtime built on Chrome's V8 engine. It allows you to run JavaScript outside the browser. Think of it as the powerhouse that handles your server-side logic. 🧰 𝗘𝘅𝗽𝗿𝗲𝘀𝘀.𝗷𝘀 𝗶𝘀 𝘁𝗵𝗲 𝗧𝗼𝗼𝗹𝗸𝗶𝘁 It’s a minimal and flexible framework built on top of Node.js. It simplifies things like routing, middleware, and handling HTTP requests. 𝗪𝗵𝘆 𝘄𝗲 𝘂𝘀𝗲 𝘁𝗵𝗲𝗺 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿: While you can build a server using just Node.js (with the http module), it requires a lot of manual code. Express turns 50 lines of "pure" Node code into 5 lines of readable, maintainable logic. 𝗠𝘆 𝗧𝗮𝗸𝗲: In 2026, efficiency is everything. Unless you are building something extremely low-level, Express (or similar frameworks like Fastify) is the standard for getting high-performance APIs into production quickly. 𝗪𝗵𝗶𝗰𝗵 𝗼𝗻𝗲 𝗮𝗿𝗲 𝘆𝗼𝘂 𝗹𝗲𝗮𝗿𝗻𝗶𝗻𝗴/𝘂𝘀𝗶𝗻𝗴 𝗿𝗶𝗴𝗵𝘁 𝗻𝗼𝘄? 𝗟𝗲𝘁’𝘀 𝘁𝗮𝗹𝗸 𝘁𝗲𝗰𝗵 𝗯𝗲𝗹𝗼𝘄! 👇 #NodeJS #ExpressJS #BackendDevelopment #JavaScript #WebDevelopment #Coding #SoftwareEngineering #TechInsights

Ever wondered how Node.js works behind the scenes? 🤔 In my latest blog, I broke down Node.js internals in a simple way — focusing on the 3 core components: 🔹 V8 Engine (executes JS & manages memory) 🔹 Libuv (handles async tasks & event loop) 🔹 Bindings (connects V8 with system-level operations) Understanding this flow really changes how you look at things like fs.readFile() or setTimeout() 💡 👉 Read the full blog here: https://lnkd.in/g-AbBCiy I’d really appreciate your thoughts, feedback, or any experiences you’ve had while working with event propagation 😊 Hitesh Choudhary | Piyush Garg | Akash Kadlag #JavaScript #WebDevelopment #Blog #NodeJs #Cohort2026 #LearnInPublic #libuv #v8

Full-stack TypeScript with tRPC is one of those stacks that just clicks. You define your backend procedures once, infer the types on the client automatically, and ship features without duplicating contracts or chasing mismatched payloads. Why it’s powerful: - End-to-end type safety - No manual API schema syncing - Great DX for frontend + backend teams - Faster refactors with confidence - Fewer runtime surprises What I like most is the developer experience: Build a procedure on the server, call it from the client, and get autocomplete, validation, and type inference all the way through. It feels like removing an entire category of bugs from your app. If you’re building with TypeScript across the stack, tRPC is worth a serious look. #TypeScript #tRPC #FullStack #WebDevelopment #DX #SoftwareEngineering #React #Nodejs #WebDevelopment #TypeScript #Frontend #JavaScript

🚀 Performance Tip for Developers When working with APIs in Node.js, one small change can make a huge difference! ❌ Sequential API Calls Calling APIs one after another increases total response time (e.g., 300ms) ✅ **Use `Promise.all()`** Run independent API calls in parallel and reduce the total time significantly (e.g., 100ms) 💡 Why it matters? * Faster response times ⚡ * Better user experience 🎯 * Improved scalability 📈 👉 If your API calls don’t depend on each other, always prefer parallel execution. Small optimization, BIG impact. 💥 #NodeJS #JavaScript #BackendDevelopment #PerformanceOptimization #WebDevelopment #CodingTips

Node.js runs on a single thread. But somehow it handles thousands of requests at the same time without freezing. How? The Event Loop. Here is what actually happens: When your code runs, it executes line by line on the call stack. Simple. But when it hits something that takes time — a file read, a database call, a timer — it does not wait. It sends that task to the background and moves on. The background handles it. When the task finishes, its callback goes into the event queue. Meanwhile the event loop is watching. The moment the call stack is empty, it picks the next callback from the queue and runs it. That is it. That is the whole mechanism. No blocking. No waiting. Just a continuous cycle of — run, delegate, come back when ready. This is why Node.js is so fast for things like APIs, real-time apps, and servers handling thousands of users simultaneously. Understand the Event Loop and Node.js stops feeling like magic. #NodeJS #BackendDevelopment #JavaScript #WebDevelopment