Socket.io VS Introducing .NET Multi-platform App UI (MAUI)

My socket.io -client was not the same version as the socket.io server side.

Got it. And socket.io? What is the difference between them?

const io = require('socket.io')(server)

My current skill level is successfully using javascript and frameworks such as express and socket.io to build a multiplayer retro 2D tank game (something like BattleCity in the 1980s). This is the only project that I have done.

Server platform Node.js, going with the real-time data exchange library Socket.io helps build a chat with unlimited customization possibilities.

It really doesn't matter if you are standing up a websockets server (examples being socket.io or signalR). Matters even less if you use a platform like Twilio Conversations API or GetStream.io.

I have a socket.io nodejs server. Was wondering how do I scale my application for large number of concurrent users (say 10k) in AWS.

Yes, the application has many concurrent users daily and we are building a new feature/ service which uses socket.io for real-time communication.

If you only need to update a client, a technology like socket.io or SignalR to allow your client to subscribe. I use these services to send a lightweight payload trigger a rest call to pull down the full data. These tools will make it easier to manage your use case above.

The socket.io might be simple enough for me, setting up Kafka or RabbitMQ might be a cumbersome task for me.

Have you looked into .NET MAUI yet? I'm cautiously optimistic, but haven't dug into it. Should be releasing Q2 this year.

https://github.com/dotnet/maui

Check out WinUI 3 and MAUI

Microsoft also has MAUI, which is "cross-platform" where "cross-platform" is defined to mean " Android, iOS, macOS, and Windows". Specifically, there is no support for Linux.

So Maui

The core set of UI controls and platform APIs are provided by .NET MAUI. Comet gives you a simple approach to app development that uses Model-View-Update (MVU) inspired state management.

The usual advice seen around here is to use https://avaloniaui.net/, or the upcoming MAUI, however MAUI won't have official support for Linux desktop.

You could try updating your current project, but I wouldn't put to much time into it if you run into bugs, there seem to be a lot of unfinished things in the more complex controls. I guess migrations between versions will be the smallest problem, you can find guides in their wiki https://github.com/dotnet/maui/wiki