docs: eventsub websocket example refactor

[l5cs]

pr for #501

corrects the handling of reconnect events sent through eventsub websocket in accordance with twitch docs.

i'm making this a draft and looking for feedback because

• i've spent a couple days looking at my own implementation and it seems to work but i haven't tested locally with twitch cli
• still no handling of keepalive messages. the handle should timeout and reset the connection
• the code in general looks ugly

[Nerixyz]

Thank you for updating the example!

A few comments/suggestions:

• Leave out the token refreshing. This can be a comment/TODO for the user, but it's a bit distracting.
• Similarly, get_existing_subscriptions shouldn't be needed if we track the subscriptions properly. The assumption is that the given token is only used by the example.
• Split the process_message into multiple functions to avoid nesting.
• Could the state for a connection still live in some struct similar to before?

[Emilgardis]

I agree with splitting it up more, tried doing a quick review but it was hard piecing together what it's actually doing without spending more time on it.

[Nerixyz]

The structure looks good. Just a few minor things and some more comments.

[Emilgardis]

I think we can merge this, I'm not a huge fan of how it's done but this is more correct. We can improve the example more, I'll experiment with it myself in #477

[Emilgardis]

Could you rebase the PR please git pull upstream main --rebase? also I see you're on your main branch, this might cause problems when you do the rebase, we'll see.

[l5cs]

seems to work. 👍
sorry for the hold up, i got a bit ill. thanks for taking your time to look into this ❤️

[Emilgardis]

thank you!