Okay sure. Yeah I was planing on hosting a socketio server with next and then generate some TextToSpeech MP3 and play it from the public.

But I guess socketio server isnt even supported with nextjs so

But appreciate you

Tried the official docs for nextjs & socket io but that wasnt working. I really need access to the io, but i cant export io because of next.

And then in combination with that issue

It tells me that I cant export io when in the same file is the const app = next({dev, hostname, port})

Any Idea how i can avoid that?

this requires a custom server which is not really recommended. if you want a socket server its better to build it externally from the next.js server

So then it would be better to have the Socket IO and TTS generator seperatly as a microservice for example as docker and then provide the Mp3 URL to the client in nextjs with all required data?

And for everything else where I need to update data I also could fetch an api endpoint every 3 seconds?

Like If i need to display

Title: This is a Title
Rating: 5/5

And then when i need the new data make a api request where i get json?

I guess so

Sad that this is not possible, but i guess express does support this. So should be easy to get a microservice working for that!

yeah probably. I don't really understand the other stuff you are saying, but the idea is if you have a long-running service (like sockets) you need to separate it

Okay great to know. Thank you so much for helping!