--- title: "Amit Dewangan (@dewanganAmit) | Hashnode" description: "Amit Dewangan (@dewanganAmit) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@dewanganAmit" --- @dewanganAmit # Amit Dewangan @dewanganAmit · Joined December 2025 ### [How Instagram Stores Reels, Photos, and Drafts Behind the Scenes](https://amitdewanganblog.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) Ever wonder the reel your sharing with your friend , posting photos and make some draft msg for her, how they store let's understand it in simple words Why social media apps need efficient media stora 7 min read · [amitdewanganblog.hashnode.dev](https://amitdewanganblog.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) [May 29](https://hashnode.com/posts/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes/6a19b0c70693b0248e0e4308) ### [Expo Router vs React Navigation — Which One Should You Use in 2026?](https://amitdewanganblog.hashnode.dev/expo-router-vs-react-navigation-which-one-should-you-use-in-2026?utm_source=hashnode&utm_medium=feed) The React Native ecosystem has changed dramatically over the last few years.For a long time, developers manually configured navigation systems screen by screen using React Navigation. Then Expo Router 11 min read · [amitdewanganblog.hashnode.dev](https://amitdewanganblog.hashnode.dev/expo-router-vs-react-navigation-which-one-should-you-use-in-2026?utm_source=hashnode&utm_medium=feed) [May 22](https://hashnode.com/posts/expo-router-vs-react-navigation-which-one-should-you-use-in-2026/6a1035071f237623eae122e6) ### [How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router](https://amitdewanganblog.hashnode.dev/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router?utm_source=hashnode&utm_medium=feed) Have you ever wonder how the scalble apps works internally, how they manage the internally thing, the flow of data management , architecture , let's understand it and goes under the hood. How modern l 15 min read · [amitdewanganblog.hashnode.dev](https://amitdewanganblog.hashnode.dev/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router?utm_source=hashnode&utm_medium=feed) [May 22](https://hashnode.com/posts/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router/6a1031201f237623eade3181) ### [The Node.js Event Loop Explained](https://amitdewanganblog.hashnode.dev/the-node-js-event-loop-explained?utm_source=hashnode&utm_medium=feed) “If JavaScript runs on a single thread, how can Node.js handle thousands of users at the same time?” Answer-> The Event loop Let's understand it in simpler words. What is the Event loop Event loop is 3 min read · [amitdewanganblog.hashnode.dev](https://amitdewanganblog.hashnode.dev/the-node-js-event-loop-explained?utm_source=hashnode&utm_medium=feed) [May 9](https://hashnode.com/posts/the-node-js-event-loop-explained/69fea8edf239332df43ba922) ### [Handling File Uploads in Express with Multer](https://amitdewanganblog.hashnode.dev/handling-file-uploads-in-express-with-multer?utm_source=hashnode&utm_medium=feed) File uploading and handling file is one the essential feature of modern days web application , let's understand it how it will work in simpler words. Why file upload needs middleware When a normal for 2 min read · [amitdewanganblog.hashnode.dev](https://amitdewanganblog.hashnode.dev/handling-file-uploads-in-express-with-multer?utm_source=hashnode&utm_medium=feed) [May 8](https://hashnode.com/posts/handling-file-uploads-in-express-with-multer/69fdf22cf239332df4ce8665)