Is there middleware in Tauri 2.0?

[BigZhenjie]

As the title is asking. I've tried looking up if there is a way to implement middleware for tauri, but no luck so far :(.
Does anyone know how to implement middleware in Tauri 2.0?

[FabianLars]

What do you mean with middleware in the context of tauri? Like what would it do?

[BigZhenjie]

middleware, from my understanding, is a layer between the frontend and backend. Basically a pre/post processing layer.

My plan is to use it to verify the jwt token sent along with each request to the backend.

[FabianLars]

do you mean the tauri backend == what's called when you use invoke etc? For that there's indeed no middleware but i also can't imagine a good and useful way to implement it in tauri.

if you mean some remote backend, then this is up to the frontend / the request client library / whatever, not tauri.

[BigZhenjie]

So the invoke function is more than just calling a backend function from the frontend?
Yes, I mean the tauri backend, not a remote backend.
I thought it is a standard to validate user sessions in the backend (i use jwt)? 
I am just confused on how I should validate user sessions in tauri backend, though I can totally do it in the frontend.

[FabianLars]

So the invoke function is more than just calling a backend function from the frontend?

Well no, it isn't. It's really just that, similar to a very trimmed down fetch() that only calls that local "backend".

I thought it is a standard to validate user sessions in the backend (i use jwt)?

I guess so, yeah. But i don't see where middleware fits in there, but i didn't do frontend/app development for ages so i don't even know what a user session validation would look like here, or why it'd require middleware.
Edit: With that^ i should probably just leave this conversation as i'm really of no help here 😅

[BigZhenjie]

No worries, I still appreciate your response, thank you :).