React Query vs Fetch: My Experience with API Calls

The biggest mistake I made as a React developer... Early in my career, I thought "State Management" meant putting everything in Redux. I ended up with: ❌ Over-engineered boilerplate. ❌ Hard-to-debug data flows. ❌ Performance bottlenecks. The lesson? Keep it simple. Use Zustand for global state, React Query for server state, and local state for everything else. Don't use a sledgehammer to crack a nut. Architecture is about balance, not just using the "coolest" library. What’s one mistake you wish you could undo in your code? 😅 #ReactJS #CodingLife #WebDevTips #Redux #Zustand

Leveling up with React Router: Mastered Nested Routes & Dynamic Data Fetching! ⚛️ I just wrapped up a project focusing on creating a seamless User Directory using React and JSONPlaceholder. This was a deep dive into structured navigation and efficient data handling. Key implementations: 🚀 Dynamic Routing: Used useParams and useNavigate to handle user-specific views. 📂 Nested Routes: Implemented <Outlet /> to render sub-components like Posts, Todos, and Albums without losing parent context. 💾 State Persistence: Utilized location.state to pass user data between routes, reducing redundant API calls. 📡 Async Operations: Handled side effects with useEffect and Axios to fetch data dynamically. Seeing the architecture come together is incredibly satisfying. Onward to the next challenge! Question for the devs: When passing data between routes, do you prefer using location.state for simplicity, or do you prefer fetching by ID in the child component to keep it independent? I’d love to hear your thoughts in the comments! 👇 #ReactJS #WebDevelopment #Frontend #JavaScript #LearningInPublic

🚀 React Query (TanStack Query v5) — A Complete Guide As a FrontEnd Developer, I've put together a full visual guide on React Query covering everything you need to get started: 📌 What is React Query and why use it? 📌 useQuery — fetch data the smart way 📌 useMutation — handle POST, PUT, DELETE 📌 Query Keys — cache, refetch & share data 📌 useInfiniteQuery — paginated data made easy 📌 useQueryClient — control the cache manually All examples use TanStack Query v5 syntax 🔗 Check out the full sandbox repo with code examples: https://lnkd.in/e4yikkTn I hope this helps you level up your React skills! #ReactQuery #TanStackQuery #React #FrontEnd #JavaScript #WebDevelopment

For years, JavaScript only ran in the browser. Then Node.js changed everything. 🚀 Suddenly JavaScript could run on the server — and the entire web development game shifted. Here's why Node.js + Express is such a powerful combo for backend devs: ⚡ Non-blocking I/O — handles thousands of simultaneous requests without choking 🛣️ Express routing — map a URL to a function in literally 2 lines of code 📦 npm ecosystem — 2 million+ packages ready to install 🔗 One language everywhere — JavaScript on frontend AND backend I picked it up while building ShopNest alongside Flask — and the two complement each other really well for a dual-backend architecture. Flask for Python-heavy logic. Express for fast, scalable API endpoints. Are you a Flask dev, an Express dev — or both? 👇 #NodeJS #ExpressJS #JavaScript #BackendDevelopment #WebDevelopment #PythonDeveloper #FullStackDev #LearnToCode #BuildInPublic #TechStudent #100DaysOfCode #Programming #IndianDeveloper #SoftwareDevelopment

React 19 just mass-deleted half your "optimization" code. And your app got faster because of it. ⚡ For years, React devs have been trained to do one thing — memoize everything. useMemo here. useCallback there. React.memo wrapping every component like bubble wrap. We called it "performance optimization." It was actually performance anxiety. 🧠 The real problem? Most useMemo and useCallback calls do absolutely nothing for performance. They add complexity. They make onboarding painful. And wrong dependency arrays silently break your app. ⚡ React 19 shipped a compiler. Not a plugin. A compiler that automatically figures out: → Which values need memoization → Which components should skip re-renders → Which callbacks are stable All at build time. Zero runtime cost. Zero developer effort. 🔥 Before vs After: React 18: useMemo, useCallback, React.memo everywhere. Dependency arrays at 2 AM. Bugs you can't trace. React 19: Write plain code. The compiler handles the rest. Same performance. Half the code. Zero mental overhead. 🎯 Why this matters: → Junior devs stop guessing where to put useMemo → Code reviews stop being memoization debates → Stale closure bugs just... disappear I removed 23 useMemo/useCallback hooks from one component last week. The diff was -67 lines. It went from "nobody wants to touch this" to "anyone can read this in 30 seconds." The best code isn't the most optimized code. It's the code your entire team ships confidently. React 19 didn't just remove boilerplate. It removed an entire category of bugs. Save this for your team ♻️ #react #javascript #frontend #webdevelopment #softwareengineering #react19 #ES6

Your TypeScript compiled with zero errors. Your React app still crashed in production. Here is why. 👇 TypeScript gives us a false sense of security. Here is the trap almost every frontend team falls into: const data = await response.json() as User; The Trap: The TypeScript Mirage 🏜️ By using as User, you just lied to the compiler. TypeScript is a build-time tool. It gets completely stripped away before your code runs in the browser. If your microservice backend team accidentally changes a field, or an API returns an unexpected null, the browser doesn't care about your User interface. The bad data flows directly into your React state, and suddenly your users are staring at a white screen of death because data.map is not a function. The Architectural Fix: Runtime Validation 🛡️ Senior engineers do not trust the network. They build boundaries. Instead of just casting types, you must validate the schema at runtime using a library like Zod. 1️⃣ Define the schema: const UserSchema = z.object({ id: z.string(), name: z.string() }); 2️⃣ Infer the TypeScript type from the schema for your UI. 3️⃣ Parse the incoming data: const user = UserSchema.parse(await response.json()); The Result: If the API sends bad data, Zod throws a clean error at the exact network boundary before it ever touches your React components. You catch the bug at the API layer, not in the UI layer. Are you blindly trusting your API responses, or are you validating at the boundary? 👇 #TypeScript #ReactJS #FrontendEngineering #SoftwareArchitecture #SystemDesign #WebDevelopment #FullStack

#State Vs #Props ---> who controls the data? In React, state and props are two core concepts. Both deal with data… but they don’t behave the same. 🟪State : 1. Used to manage data within a component 2. Can be changed over time (mutable via useState) 3. Handles dynamic data & user interactions 4. Any change in state =>> triggers re-render 🟧Props (short for properties) : 1. Used to pass data from parent to child 2. Read-only (child cannot modify it) 3. Mostly used for passing data 4. Changes in parent data =>> can cause re-render in child 🟨In short : State --> controlled inside the component Props --> controlled by the parent A small difference… but it defines how your UI behaves. 🔖 Save this for later if you're learning React. #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #ReactDeveloper #MERNStack #CodingJourney #LearnToCode #SoftwareDevelopment #TechLearning #Programming

Most React tutorials are still teaching 2020 patterns. In 2026, the ecosystem has shifted dramatically: React 19 is stable, the compiler handles most memoization automatically, and useEffect should be a last resort — not your go-to for data fetching, derived state, or event responses. This guide walks you from project setup to production-ready patterns, with a cheat sheet you can bookmark. #react #web #frontend #next #frontend #performance #javascript #tips #typescript #nextjs

Most developers reach for Redux or NgRx the moment their app has more than two components sharing data. That is one of the most expensive habits in frontend development. Here is what actually happens on most mid-size projects: Myth 1: "Global state = scalable architecture" Not even close. Global state means every part of your app can read and mutate shared data. That is not scalability, that is a debugging nightmare waiting to happen. I have seen enterprise-scale Angular apps where half the NgRx store was holding data that one component used once. Myth 2: "Redux/NgRx is the industry standard so we must use it" The industry standard is using the right tool. React's Context API with useReducer handles 80% of real-world state problems cleanly. Angular's component-level services with signals handle most of the rest. NgRx earns its place in large teams with complex async flows, not in every project by default. Myth 3: "Adding NgRx makes the codebase more maintainable" Only if your team understands actions, reducers, effects, selectors, and facades deeply. I have inherited codebases where NgRx was added for "maintainability" and nobody could trace a single data flow without opening four files. The real question before reaching for a state management library is not "should we use it" but "what problem are we actually solving?" Server state? Use React Query or NgRx Data. Shared UI state across many routes? Then NgRx makes sense. Two sibling components talking? Props or a service. That is it. State management is architecture. Treat it like one. Drop a 👇 if you have inherited a Redux/NgRx setup that nobody on the team could explain. #ReactJS #Angular #NgRx #Redux #FrontendDevelopment #JavaScript #SoftwareEngineering #WebDevelopment

If you’ve ever worked with IndexedDB, you know the struggle 😅 It feels like doing something simple… but in the most complicated way possible. Like trying to fix a fan with gloves on 🧤 👉 That’s where Dexie.js comes in. 🛠 What is Dexie.js? Think of it as a smart wrapper over IndexedDB. It converts messy, hard-to-read code into clean, modern JavaScript using Promises & async/await. Basically, same power… but 10x easier to use 👍 🌟 Why developers like it ✅ Promise-based – No more callback headache ✅ Easy queries – Filtering feels natural (almost like SQL/LINQ) ✅ Case-insensitive search – Small thing, big relief 🙌 ✅ Reactive support – Works beautifully with React, Vue, Svelte 💼 Where it really shines 📱 Offline-first apps (PWA) – Works even without internet ⚡ Fast local apps – Store large data, no loading delays 🔄 Sync-based apps – Save locally, sync to server later ✅ Pros ✔ Clean developer experience (less code, less stress) ✔ Solid documentation (very beginner-friendly) ✔ Mature & stable (handles browser quirks well) ❌ Cons ➖ Adds a little bundle size ➖ You still need basic understanding of IndexedDB ➖ Not a replacement for backend DB (client-side only) 🎯 Bottom Line If your app is doing more than just saving a “Dark Mode” setting… Dexie.js is totally worth it. Once you try it, going back to plain IndexedDB feels painful 😄 #WebDev #JavaScript #Frontend #DexieJS #ProgrammingTips #PWA