Building an upload backend service with No libraries, No forms, just vanilla JS with progress)

Building an upload backend service with No libraries, No forms, just vanilla JS with progress) https://peertube.lagbag.com/videos/watch/ce70d94d-f286-4342-9329-16b10e5d3ccb OK, I lied I used the HTTP and the fs library on node js but nothing on the backend but nothing but the built-in functions on the browser. In this video, I’ll build a simple progressor upload service and explain how it works. Let us have fun. Source Code https://github.com/hnasr/javascript_playground/tree/master/simple-uploader Resources https://nodejs.org/api/http.html#http_http https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch https://developer.mozilla.org/en-US/docs/Web/API/FileReader 0:00 Intro 3:00 Preparing Frontend/Backend 7:00 Reading file with FileRead in Frontend 14:00 Slicing the file into Chunks 19:00 Sending Chunks through fetch to Backend 23:00 Received Chunks on Backend 28:00 Progress on Frontend 30:00 Increase chunk size 31:00 Possible Improvement and Scalability ' Become a Member on YouTube https://www.youtube.com/channel/UC_ML5xP23TOWKUcc-oAE_Eg/join 🔥 Members Only Content https://www.youtube.com/playlist?list=UUMO_ML5xP23TOWKUcc-oAE_Eg Support my work on PayPal https://bit.ly/33ENps4 🧑‍🏫 Courses I Teach https://husseinnasser.com/courses 🏭 Backend Engineering Videos in Order https://backend.husseinnasser.com 💾 Database Engineering Videos https://www.youtube.com/playlist?list=PLQnljOFTspQXjD0HOzN7P2tgzu7scWpl2 🎙️Listen to the Backend Engineering Podcast https://husseinnasser.com/podcast Gears and tools used on the Channel (affiliates) 🖼️ Slides and Thumbnail Design Canva https://partner.canva.com/c/2766475/647168/10068 🎙️ Mic Gear Shure SM7B Cardioid Dynamic Microphone https://amzn.to/3o1NiBi Cloudlifter https://amzn.to/2RAeyLo XLR cables https://amzn.to/3tvMJRu Focusrite Audio Interface https://amzn.to/3f2vjGY 📷 Camera Gear Canon M50 Mark II https://amzn.to/3o2ed0c Micro HDMI to HDMI https://amzn.to/3uwCxK3 Video capture card https://amzn.to/3f34pyD AC Wall for constant power https://amzn.to/3eueoxP Stay Awesome, Hussein Thu, 16 Apr 2026 17:50:40 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.lagbag.com Building an upload backend service with No libraries, No forms, just vanilla JS with progress) https://peertube.lagbag.com/client/assets/images/icons/icon-512x512.png https://peertube.lagbag.com/videos/watch/ce70d94d-f286-4342-9329-16b10e5d3ccb All rights reserved, unless otherwise specified in the terms specified at https://peertube.lagbag.com/about and potential licenses granted by each content's rightholder.