RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 30 · 7 min readHow Instagram Stores Reels, Photos, and Drafts Behind the ScenesYou open Instagram, spend 20 minutes recording a Reel, add music, overlay some text, and then hit Save Draft. You close the app, clear it from your phone’s memory, restart your device later, and open 00
RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 28 · 4 min readHow WhatsApp Works Without Internet?You open WhatsApp, turn on aeroplane mode, send a message… and it still appears instantly in the chat. How? Messaging apps feel “real-time,” but great ones are also offline-first. They’re designed so 00
RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 22 · 2 min readHow Netflix Would Be Built Today Using Expo RouterBuilding a “Netflix-like” app today isn’t primarily a UI challenge—it’s an architecture challenge. On day 1, a simple React Native app can be: components/ screens/ utils/ But at Netflix scale (or Inst00
RJRajat Jaiswalinreactnativebeginer.hashnode.dev·May 22 · 6 min readExpo Router vs. React NavigationIf you’ve spent any time building mobile apps with React Native, you know that handling navigation is one of the most critical decisions you'll make. Unlike web browsers, which have a built-in URL his00
RJRajat Jaiswalinnodeforbeginners.hashnode.dev·May 10 · 4 min readWhat is Middleware in Express and How It WorksMiddleware is one of the most important ideas in Express.js. It’s the reason Express apps are flexible: you can plug in logic for logging, authentication, validation, and error handling without rewrit00
