Ujjawal Solanki - MERN Stack Developer Blog https://ujjawal-solanki.pages.dev/blog MERN Stack tutorials: JWT auth, MongoDB, React CRUD, REST APIs, WebSockets, WebRTC, RAG, and deployment by Full Stack Developer Ujjawal Solanki. en-us Wed, 20 Aug 2026 00:00:00 +0000 ujjawalsolanki517@gmail.com (Ujjawal Solanki) My MERN App Worked on Localhost. Putting It Online Almost Broke Me https://ujjawal-solanki.pages.dev/blogs/deploy-mern-app-on-vps https://ujjawal-solanki.pages.dev/blogs/deploy-mern-app-on-vps A personal story about taking a MERN app from localhost to a live VPS with Nginx and PM2. Ujjawal Solanki Thu, 31 Oct 2025 00:00:00 +0000 MERN Stack I Built Login Three Times Before JWT Finally Made Sense https://ujjawal-solanki.pages.dev/blogs/jwt-authentication-mern-stack https://ujjawal-solanki.pages.dev/blogs/jwt-authentication-mern-stack How I finally understood JWT auth in MERN after building login the wrong way three times. Ujjawal Solanki Tue, 19 Aug 2026 00:00:00 +0000 MERN Stack My MongoDB Schema Looked Fine. Then the App Got Slow https://ujjawal-solanki.pages.dev/blogs/mongodb-schema-design-mern https://ujjawal-solanki.pages.dev/blogs/mongodb-schema-design-mern What I learned when a messy MongoDB schema made a real app slow. Ujjawal Solanki Tue, 19 Aug 2026 00:00:00 +0000 MERN Stack CRUD Felt Easy in Tutorials. Real Users Made It Hard https://ujjawal-solanki.pages.dev/blogs/react-crud-operations-mern https://ujjawal-solanki.pages.dev/blogs/react-crud-operations-mern Why CRUD feels easy in tutorials and hard with real users. Ujjawal Solanki Tue, 19 Aug 2026 00:00:00 +0000 MERN Stack My First Express API Worked. It Was Still a Mess https://ujjawal-solanki.pages.dev/blogs/build-rest-apis-nodejs-express https://ujjawal-solanki.pages.dev/blogs/build-rest-apis-nodejs-express Lessons from cleaning up a messy Express API into a clear contract. Ujjawal Solanki Sun, 10 Aug 2026 00:00:00 +0000 MERN Stack My MERN Apps Kept Breaking as Soon as They Grew https://ujjawal-solanki.pages.dev/blogs/mern-stack-architecture-production https://ujjawal-solanki.pages.dev/blogs/mern-stack-architecture-production How clearer MERN architecture stopped my apps from breaking as they grew. Ujjawal Solanki Tue, 12 Aug 2026 00:00:00 +0000 MERN Stack I Ignored Express Middleware. Then One Bug Spread Everywhere https://ujjawal-solanki.pages.dev/blogs/nodejs-express-middleware-guide https://ujjawal-solanki.pages.dev/blogs/nodejs-express-middleware-guide The bug that taught me why Express middleware matters. Ujjawal Solanki Tue, 19 Aug 2026 00:00:00 +0000 MERN Stack I Wanted ChatGPT for My Own Docs. Generic Answers Were Useless https://ujjawal-solanki.pages.dev/blogs/rag-apps-langchain-vector-database https://ujjawal-solanki.pages.dev/blogs/rag-apps-langchain-vector-database Why I needed RAG when generic chatbot answers failed on my own docs. Ujjawal Solanki Thu, 14 Aug 2026 00:00:00 +0000 MERN Stack Polling Made My App Feel Alive. It Also Made the Server Cry https://ujjawal-solanki.pages.dev/blogs/realtime-apps-websockets https://ujjawal-solanki.pages.dev/blogs/realtime-apps-websockets How WebSockets replaced painful polling in my real-time features. Ujjawal Solanki Fri, 15 Aug 2026 00:00:00 +0000 MERN Stack My First WebRTC Demo Failed While People Were Watching https://ujjawal-solanki.pages.dev/blogs/video-calling-webrtc https://ujjawal-solanki.pages.dev/blogs/video-calling-webrtc What a failed live demo taught me about WebRTC video calls. Ujjawal Solanki Sat, 16 Aug 2026 00:00:00 +0000 MERN Stack I Was Tired of “It Works on My Machine” https://ujjawal-solanki.pages.dev/blogs/docker-cicd-node-apps https://ujjawal-solanki.pages.dev/blogs/docker-cicd-node-apps How Docker and CI/CD helped me stop relying on works on my machine. Ujjawal Solanki Mon, 18 Aug 2026 00:00:00 +0000 MERN Stack