Hey dev.to! Maksim here again, author of the previous article "From Idea to MVP: Building a Classified Platform in Serbia" about Rsale.net, a classified platform for Serbia. In that post I described the stack: Next.js 15 + React 19 + ASP.NET Core microservices + AI translation. A few months later, the frontend has been fully rewritten on SvelteKit 2 + Svelte 5 (runes). The Next.js codebase is gon
Some time ago, I was building a chat application using AWS Websocket API gateway. Things were going smoothly. I created a WebSocket API Gateway, added $connect, $disconnect, and sendMessage/addGroup routes. From the frontend (React) side, everything was fire-and-forget. You send a message, and the onMessageHandler takes care of it 💪🏼 But then a new requirement of uploading files using S3 signed