Deyan Hababa’s Post

A production bug taught me this lesson One small issue. One missing edge case. And suddenly the whole workflow started breaking. At first, I looked at the code. But the real problem wasn’t the code itself. It was: assumptions we made missing logs unclear ownership no retry strategy weak failure handling That day reminded me: The hardest part of engineering is not building the happy path. It’s designing for what happens when things go wrong. Now every feature I build starts with: What can fail? How will I trace it? Who owns it? How does it recover? Real growth as a developer begins when you stop asking “Will this work?” and start asking “How will this fail?” What’s a bug that changed the way you build systems? #SoftwareEngineering #BackendDevelopment #SystemDesign #DeveloperGrowth #ProblemSolving #EngineeringMindset #NodeJS #NestJS #FullStackDevelopment #BuildInPublic

2 hours of debugging. The bug was 1 wrong word. I built a blog publishing pipeline. The frontend tracks each stage of the job: Processing → Preview Ready → Publishing → Published I marked “Preview Ready” as a terminal state. Meaning: once we hit that status, stop polling. Job’s done. It wasn’t. The backend kept going all the way to Published. The frontend had already stopped listening. Result? Users clicked Publish. Saw the preview. Then… nothing. No success screen. No redirect. Just silence. The fix? Two lines of code. The debugging? Way longer. What I learned: Calling a state "final" is a bet on the future. Products evolve. Flows get extended. That "terminal" state from last month might just be a checkpoint today. I now treat terminal states like a list I actively maintain — not a decision I make once. What’s the smallest bug that cost you the most debugging time? #webdev #reactjs #nextjs #frontenddevelopment #buildinpublic #softwareengineering

Frontend and Backend might seem like separate worlds… but they truly meet through JSON 🤝 When data moves seamlessly, that’s where a Full Stack Developer comes to life 💻✨ 👉 It’s not just coding — it’s about connecting everything into one system. #development

I once pushed a "quick fix" to a production Next.js app that saved the client two hours but cost us two days of debugging a week later. Last week, on a high-stakes migration from Django to FastAPI, my team wanted to rewrite the entire authentication flow. The temptation to refactor everything for "cleaner code" was massive. But we had a release deadline in 48 hours. We agreed on a "Debt Budget" instead: 1. If the code isn't breaking the core business logic, it stays as is for now. 2. We document the messy parts in Linear tickets immediately, not in our heads. 3. We set aside every Friday afternoon strictly for "Debt Paydown" sprints. Shipping isn’t about writing perfect code; it’s about writing sustainable code that actually reaches the user. Technical debt isn't an enemy—it's a tool, provided you have a plan to pay it back. How do you decide what code to fix now versus what to leave for the next sprint? #SoftwareEngineering #TechDebt #WebDevelopment #CodingLife #Agile

I used to be scared to death about deploying applications 😅 All worked just fine in development mode… Until the first push to production. 💥 Problems. Bugs. No env variables. Stress. Does it ring a bell? 🚨 The Issue We, programmers, work days and nights to code features… However, once it comes to deploying: “Why is the backend unable to connect?” “What happened to the environment variables?” “Why does CORS freak out?” Deployment requires a totally different set of skills. And it’s true… ⚙️ My Approach (From Messy to Systematic) No more guesswork and mistakes; instead, I’ve created a deployment workflow that works every time: 1️⃣ Separate Everything Frontend → (Vercel / Netlify) Backend → (AWS / VPS / Railway) Database → (Managed DB like PostgreSQL) 👉 Clear separation = easier debugging 2️⃣ Environment Variables are KING 👑 No hardcoded secrets .env locally Platform env configs in production 👉 If something breaks, this is the first place I check 3️⃣ Use CI/CD (Even Basic) Push to GitHub → auto deploy No manual uploads, no FTP drama 👉 Less human error = more peace 4️⃣ Logs > Guessing Always check logs first Don’t assume, observe 👉 Logs tell the truth. Always. 5️⃣ Start Small, Then Scale First make it work Then optimize performance, caching, scaling 👉 Don’t over-engineer early 🌐 Bonus I share more practical dev insights like this on: 👉 webdevleb.org 🤔 Let’s Talk When your app breaks in production… 👉 What’s the FIRST thing you check? #WebDevelopment #FullStackDeveloper #DevOps #Deployment #SoftwareEngineering #CI_CD #Programming #WebDev #CloudComputing #DeveloperLife #CodingTips #TechCareer

Most projects do not get messy because the developers are bad. They get messy because the structure was never built to scale. As a full stack developer, one thing I have learned is this: Folder and file structure is not just organization. It is architecture. A clean structure makes code easier to read, faster to debug, easier to scale, and much simpler for teams to work with across frontend and backend. Good code matters. But good structure is what keeps a project maintainable. Structure is a feature, not an afterthought. What is the most common folder structure mistake you see in real projects? #FullStackDevelopment #SoftwareArchitecture #CleanCode #FrontendDevelopment #BackendDevelopment

I wasted hours debugging CORS. Turns out… There was nothing wrong with my backend. A few years ago, back in my college days, I built a registration app for our college fest. Simple CRUD application, a small admin panel for managing teams and tracking winners. Node.js + MongoDB backend. React frontend. Deployed separately because that’s what I thought “real” apps were supposed to look like. A bit of Heroku credit for the server, GitHub Pages for the UI. And honestly, that's the exact setup every other tutorial contains. And then the fun started: CORS errors. APIs are getting cancelled. At one point, I was convinced that it was impossible to solve, and I had made a huge mistake taking up this project. Fast forward two years into working as a Software Engineer, and I was revisiting this project when something hit me. The split architecture wasn't even necessary to begin with. Frameworks like Express, FastAPI, and Spring Boot can all serve your frontend build directly from the backend. One deployment, one domain, one item to manage. And the CORS issue specifically? It wouldn't have existed at all. Serve the frontend from the same server as the API, and the browser sees a single origin: no preflight, no headers to configure, nothing. I spent hours on a problem that the architecture itself would have prevented. Now, I'm not saying that this is the right call for every project. Larger systems do benefit from separating concerns and leaning on CDNs to serve static assets. But for MVPs, internal tools, or hackathon builds, one deployable unit is almost always the cleaner, faster, and cheaper path. What’s something you over-engineered early on because you thought you were supposed to? Curious to know what your setup looked like. #FastAPI #Python #FullStack #BackendDevelopment #SoftwareEngineering #React #DevTips #PythonDeveloper #JavaDeveloper #SpringBoot

If you're learning Go for backend development, it's tempting to jump straight into frameworks like Fiber, Gin, or Echo. I get it — they’re fast, productive, and feel modern. But honestly, skipping the `net/http` standard library is one of the biggest mistakes you can make early on. `net/http` is not just a low-level package — it's *the foundation* of everything built on top of Go’s web ecosystem. When you take the time to really understand it, a few things start to click: * You stop treating frameworks like magic * You understand exactly how requests and responses flow * Middleware suddenly makes sense instead of feeling abstract * Debugging becomes easier because you know what’s happening under the hood * You can build your own abstractions instead of being locked into someone else's Most Go frameworks are just thin layers over `net/http`. If you understand the core, you understand *all of them*. Personally, once I dug into things like: * `http.Handler` and `http.HandlerFunc` * Request lifecycle * Middleware chaining * Context propagation (`context.Context`) * Server timeouts and connection handling …I realized I didn’t just “use” Go anymore — I actually *understood* how it works. And that changes everything. --- 💡 If you're starting out, spend time here first: * Official docs: [https://lnkd.in/dtxeNZ9f) * Go by Example (HTTP section): [https://lnkd.in/da9vEmd4) * "Let’s Go" book by Alex Edwards (practical deep dive) * Read real framework source code (Fiber, Gin) after learning the basics — it will make much more sense --- Frameworks are tools. `net/http` is the engine. Learn the engine first. #golang #backend #webdevelopment #softwareengineering #learninpublic IS23-26

There was a time when we had to figure everything out the hard way. Google. StackOverflow. Trial and error. Today… sometimes a prompt is faster than writing the code. And that’s okay. But I still remember how valuable it was to discover the right tools. So I put together something I wish I had back then 👉 https://lnkd.in/drHfyner A collection of: dev tools design resources CSS frameworks UI libraries icons, animations, and more And 400+ public APIs here: 👉 https://lnkd.in/dvg-xVyB If you’re a junior dev… this might save you hours (or days). #webdev #programming #developers #javascript #api #frontend