--- title: "Johny Kym (@johngeek) | Hashnode" description: "Software Developer. Read the latest articles by Johny Kym on Hashnode." url: "https://hashnode.com/@johngeek" --- @johngeek # Johny Kym @johngeek · Joined December 2020 Software Developer [Website](https://johnykym.com/) ### [WebSockets in English](https://johngeek.hashnode.dev/websockets-in-english?utm_source=hashnode&utm_medium=feed) A deep dive into real-time client-server communication. 3 min read · [johngeek.hashnode.dev](https://johngeek.hashnode.dev/websockets-in-english?utm_source=hashnode&utm_medium=feed) [Mar 10, 2022](https://hashnode.com/posts/websockets-in-english/6229f11c6810179d5b052048) ### [Flashlight Android App For Beginners](https://johngeek.hashnode.dev/flashlight-android-app-for-beginners?utm_source=hashnode&utm_medium=feed) Build a simple Flashlight Android app with kotlin and Jetpack Compose. 4 min read · [johngeek.hashnode.dev](https://johngeek.hashnode.dev/flashlight-android-app-for-beginners?utm_source=hashnode&utm_medium=feed) [Jan 24, 2022](https://hashnode.com/posts/flashlight-android-app-for-beginners/61ee9e5be247b2151e61c49e) ### [Understanding React-Native Mobile Applications](https://johngeek.hashnode.dev/understanding-react-native-mobile-applications?utm_source=hashnode&utm_medium=feed) The modern way of building mobile application is through declarative UI-rendering approach 3 min read · [johngeek.hashnode.dev](https://johngeek.hashnode.dev/understanding-react-native-mobile-applications?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/understanding-react-native-mobile-applications/61ae6f834389d636ce8ba34d) [Dec 6, 2021](https://hashnode.com/posts/understanding-react-native-mobile-applications/61ae6f834389d636ce8ba34d) ### [Demystifying Web APIs](https://johngeek.hashnode.dev/demystifying-web-apis?utm_source=hashnode&utm_medium=feed) The acronym API sounded jargon to me when I started learning web development. I thought it was used only on the web. I was wrong. APIs are everywhere: Web, mobile apps, desktop apps, IoT, etc. For the purpose of this article, we are going to focus o... 5 min read · [johngeek.hashnode.dev](https://johngeek.hashnode.dev/demystifying-web-apis?utm_source=hashnode&utm_medium=feed) [Oct 12, 2021](https://hashnode.com/posts/demystifying-web-apis/6165600018374f2573275f43) ### [How React Works Under The Hood](https://johngeek.hashnode.dev/how-react-works-under-the-hood?utm_source=hashnode&utm_medium=feed) React is a very popular JavaScript library that makes creating frontend web apps easier. With over 5.5M weekly download, react is enjoying great popularity. But how exactly does it work under the hood? Before diving deeper, Let's look at what react ... 5 min read · [johngeek.hashnode.dev](https://johngeek.hashnode.dev/how-react-works-under-the-hood?utm_source=hashnode&utm_medium=feed) [Mar 8, 2021](https://hashnode.com/posts/how-react-works-under-the-hood/60464e7f73cc1742999bfcc3)