Will there be LiveView / WebSocket support in the future?

[lushmana]

Leptos, looks like the next generation of Elm based web development using Rust, having spent the last couple of years doing Elixir Phoenix LiveView, is there anything on the Roadmap that looks like LiveView, which by the way uses an integrated WebSocket, around an Actor model (GenServer), with a native templating engine all authored in Elixr.
As there are many Web development tools for Rust, I see one advantage of using Rust is to produce the fastest compiled output, but productivity through a clean coding experience is critical for the uptake.

[gbj]

Not really. This rendering model is quite different from Leptos's, which is built on fine-grained reactivity. I know Dioxus has some LiveView features either already or upcoming; you may want to check them out!

Leptos is really very far from Elm in its approach. There are plenty of Elm-ish Rust frameworks like Yew, Sauron, or Seed, which may be interesting to you too.

[lushmana]

What makes Leptos interesting is that the client code is still rust (WebAssembly) NOT js and Server Code of Rust as well, that makes it similar to Elixir/Phoenix, if the fine-grained reactivity achieves similar performance to LiveView, then developers won't really care. To me it's developing in the one language, for both the Server and Client that is appealing.

[gbj]

Oh, well in that case — yes, we have that! If you want a good example of how to write very tightly coupled client and server code check out the todo-app-sqlite example. You really can basically write the application as though the client/server distinction wasn't that big of a deal.

[d4h0]

Not really. This rendering model is quite different from Leptos's, which is built on fine-grained reactivity.

@gbj: Wouldn't fine-grained reactivity be perfectly suited for an implementation of LiveView?

Instead of applying the changes directly to the DOM, you'd just sent them from the server (which manages the state of the app and handles user events) to the browser (which sends events to the server).

LiveView, basically, is just a layer between the DOM and a VDOM or the fine-grained reactivity of Leptos.

I might miss something, but fine-grained reactivity seems perfect for this.

[gbj]

Sure, you could do that, the question is just: Why?

By which I mean: it's perfectly possible to implement this in userland for any given application or as a library. For particular kinds of applications like games, chat rooms, or collaborative editing it might be useful. As a general purpose rendering technique it's not the most straightforward or performant option.