multiple fullstack nits/cleanups before release (#4852)

* feat: `:arg` syntax for serverfn

* add better decode/encode verify message

* allow catch-all query args

* add rebind

* implement websocket frames for `Streaming`

* fix lazy init

* wip... serverfnstate

* wip...

* wip: serverfns require Send/Sync, let's fix that

* wip...

* small cleanup

* fix hang by actually spawning the tokio task

* clippy

* fix parameter catchall binding

* fix lychee

* doc tests

.github/workflows/typos.yml

@@ -38,5 +38,5 @@ jobs:
       - name: Run lychee
         uses: lycheeverse/lychee-action@v2
         with:
-          args: --base . --config ./lychee.toml './**/*.md'
+          args: --config ./lychee.toml './**/*.md'
           fail: true

Cargo.toml

@@ -703,6 +703,11 @@ name = "flat_router"
 path = "examples/06-routing/flat_router.rs"
 doc-scrape-examples = true
 
+[[example]]
+name = "query_params"
+path = "examples/07-fullstack/query_params.rs"
+doc-scrape-examples = true
+
 [[example]]
 name = "server_functions"
 path = "examples/07-fullstack/server_functions.rs"

examples/07-fullstack/fullstack_hello_world.rs

@@ -18,7 +18,7 @@ fn main() {
     });
 }
 
-#[get("/api/{name}/?age")]
+#[get("/api/:name/?age")]
 async fn get_message(name: String, age: i32) -> Result<String> {
     Ok(format!("Hello {}, you are {} years old!", name, age))
 }

examples/07-fullstack/query_params.rs

@@ -0,0 +1,55 @@
+//! An example showcasing query parameters in Dioxus Fullstack server functions.
+//!
+//! The query parameter syntax mostly follows axum, but with a few extra conveniences.
+//! - can rename parameters in the function signature with `?age=age_in_years` where `age_in_years` is Rust variable name
+//! - can absorb all query params with `?{object}` directly into a struct implementing `Deserialize`
+
+use dioxus::prelude::*;
+
+fn main() {
+    dioxus::launch(|| {
+        let mut message = use_action(get_message);
+        let mut message_rebind = use_action(get_message_rebind);
+        let mut message_all = use_action(get_message_all);
+
+        rsx! {
+            h1 { "Server says: "}
+            div {
+                button { onclick: move |_| message.call(22), "Single" }
+                pre { "{message:?}"}
+            }
+            div {
+                button { onclick: move |_| message_rebind.call(25), "Rebind" }
+                pre { "{message_rebind:?}"}
+            }
+            div {
+                button { onclick: move |_| message_all.call(Params { age: 30, name: "world".into() }), "Bind all" }
+                pre { "{message_all:?}"}
+            }
+        }
+    });
+}
+
+#[get("/api/message/?age")]
+async fn get_message(age: i32) -> Result<String> {
+    Ok(format!("You are {} years old!", age))
+}
+
+#[get("/api/rebind/?age=age_in_years")]
+async fn get_message_rebind(age_in_years: i32) -> Result<String> {
+    Ok(format!("You are {} years old!", age_in_years))
+}
+
+#[derive(serde::Deserialize, serde::Serialize, Debug)]
+struct Params {
+    age: i32,
+    name: String,
+}
+
+#[get("/api/all/?{query}")]
+async fn get_message_all(query: Params) -> Result<String> {
+    Ok(format!(
+        "Hello {}, you are {} years old!",
+        query.name, query.age
+    ))
+}

examples/07-fullstack/server_functions.rs

@@ -92,8 +92,8 @@
 //! take a `State<T>` extractor cannot be automatically added to the router since the dioxus router
 //! type does not know how to construct the `T` type.
 //!
-//! These server functions will be registered once the `ServerFnState<T>` layer is added to the app with
+//! These server functions will be registered once the `ServerState<T>` layer is added to the app with
-//! `router = router.layer(ServerFnState::new(your_state))`.
+//! `router = router.layer(ServerState::new(your_state))`.
 //!
 //! ## Middleware
 //!

examples/07-fullstack/server_state.rs

@@ -1,6 +1,13 @@
 //! This example shows how to use global state to maintain state between server functions.
 
-use dioxus::prelude::*;
+use std::rc::Rc;
+
+use axum_core::extract::{FromRef, FromRequest};
+use dioxus::{
+    fullstack::{FullstackContext, extract::State},
+    prelude::*,
+};
+use reqwest::header::HeaderMap;
 
 #[cfg(feature = "server")]
 use {
@@ -77,7 +84,68 @@ type BroadcastExtension = axum::Extension<tokio::sync::broadcast::Sender<String>
 
 #[post("/api/broadcast", ext: BroadcastExtension)]
 async fn broadcast_message() -> Result<()> {
+    let rt = Rc::new("asdasd".to_string());
     ext.send("New broadcast message".to_string())?;
+    tokio::time::sleep(std::time::Duration::from_millis(100)).await;
+    println!("rt: {}", rt);
+
+    Ok(())
+}
+
+/*
+Option 4:
+
+You can use Axum's `State` extractor to provide custom application state to your server functions.
+
+All ServerFunctions pull in `FullstackContext`, so you need to implement `FromRef<FullstackContext>` for your
+custom state type. To add your state to your app, you can use `.register_server_functions()` on a router
+for a given state type, which will automatically add your state into the `FullstackContext` used by your server functions.
+
+There are two details to note here:
+
+- You need to implement `FromRef<FullstackContext>` for your custom state type.
+- Custom extractors need to implement `FromRequest<S>` where `S` is the state type that implements `FromRef<FullstackContext>`.
+*/
+#[derive(Clone)]
+struct MyAppState {
+    abc: i32,
+}
+
+impl FromRef<FullstackContext> for MyAppState {
+    fn from_ref(state: &FullstackContext) -> Self {
+        state.extension::<MyAppState>().unwrap()
+    }
+}
+
+struct CustomExtractor {
+    abc: i32,
+    headermap: HeaderMap,
+}
+
+impl<S> FromRequest<S> for CustomExtractor
+where
+    MyAppState: FromRef<S>,
+    S: Send + Sync,
+{
+    type Rejection = ();
+
+    async fn from_request(
+        _req: axum::extract::Request,
+        state: &S,
+    ) -> std::result::Result<Self, Self::Rejection> {
+        let state = MyAppState::from_ref(state);
+        Ok(CustomExtractor {
+            abc: state.abc,
+            headermap: HeaderMap::new(),
+        })
+    }
+}
+
+#[post("/api/stateful", state: State<MyAppState>, ex: CustomExtractor)]
+async fn app_state() -> Result<()> {
+    println!("abc: {}", state.abc);
+    println!("state abc: {:?}", ex.abc);
+    println!("headermap: {:?}", ex.headermap);
     Ok(())
 }
 
@@ -95,6 +163,10 @@ fn main() {
         let router = dioxus::server::router(app)
             .layer(Extension(tokio::sync::broadcast::channel::<String>(16).0));
 
+        // To use our custom app state with `State<MyAppState>`, we need to register it
+        // as an extension since our `FromRef<FullstackContext>` implementation relies on it.
+        let router = router.layer(Extension(MyAppState { abc: 42 }));
+
         Ok(router)
     });
 }

packages/dioxus/src/lib.rs

@@ -211,9 +211,7 @@ pub mod prelude {
     #[cfg(feature = "server")]
     #[cfg_attr(docsrs, doc(cfg(feature = "server")))]
     #[doc(inline)]
-    pub use dioxus_server::{
+    pub use dioxus_server::{self, serve, DioxusRouterExt, ServeConfig, ServerFunction};
-        self, serve, DioxusRouterExt, DioxusRouterFnExt, ServeConfig, ServerFunction,
-    };
 
     #[cfg(feature = "router")]
     #[cfg_attr(docsrs, doc(cfg(feature = "router")))]

packages/fullstack-core/src/error.rs

@@ -162,6 +162,20 @@ impl From<RequestError> for ServerFnError {
     }
 }
 
+impl From<ServerFnError> for HttpError {
+    fn from(value: ServerFnError) -> Self {
+        let status = StatusCode::from_u16(match &value {
+            ServerFnError::ServerError { code, .. } => *code,
+            _ => 500,
+        })
+        .unwrap_or(StatusCode::INTERNAL_SERVER_ERROR);
+        HttpError {
+            status,
+            message: Some(value.to_string()),
+        }
+    }
+}
+
 impl From<HttpError> for ServerFnError {
     fn from(value: HttpError) -> Self {
         ServerFnError::ServerError {

packages/fullstack-core/src/lib.rs

@@ -25,6 +25,3 @@ pub use error::*;
 
 pub mod httperror;
 pub use httperror::*;
-
-#[derive(Clone, Default)]
-pub struct DioxusServerState {}

packages/fullstack-core/src/streaming.rs

@@ -9,10 +9,6 @@ use std::collections::HashSet;
 use std::fmt::Debug;
 use std::sync::Arc;
 
-tokio::task_local! {
-    static FULLSTACK_CONTEXT: FullstackContext;
-}
-
 /// The context provided by dioxus fullstack for server-side rendering.
 ///
 /// This context will only be set on the server during the initial streaming response
@@ -21,10 +17,18 @@ tokio::task_local! {
 pub struct FullstackContext {
     // We expose the lock for request headers directly so it needs to be in a separate lock
     request_headers: Arc<RwLock<http::request::Parts>>,
+
     // The rest of the fields are only held internally, so we can group them together
     lock: Arc<RwLock<FullstackContextInner>>,
 }
 
+// `FullstackContext` is always set when either
+// 1. rendering the app via SSR
+// 2. handling a server function request
+tokio::task_local! {
+    static FULLSTACK_CONTEXT: FullstackContext;
+}
+
 pub struct FullstackContextInner {
     current_status: StreamingStatus,
     current_status_subscribers: HashSet<ReactiveContext>,
@@ -78,6 +82,7 @@ impl FullstackContext {
     pub fn commit_initial_chunk(&mut self) {
         let mut lock = self.lock.write();
         lock.current_status = StreamingStatus::InitialChunkCommitted;
+
         // The key type is mutable, but the hash is stable through mutations because we hash by pointer
         #[allow(clippy::mutable_key_type)]
         let subscribers = std::mem::take(&mut lock.current_status_subscribers);
@@ -110,17 +115,23 @@ impl FullstackContext {
         FULLSTACK_CONTEXT.scope(self, fut).await
     }
 
+    /// Extract an extension from the current request.
+    pub fn extension<T: Clone + Send + Sync + 'static>(&self) -> Option<T> {
+        let lock = self.request_headers.read();
+        lock.extensions.get::<T>().cloned()
+    }
+
     /// Extract an axum extractor from the current request.
     ///
     /// The body of the request is always empty when using this method, as the body can only be consumed once in the server
     /// function extractors.
-    pub async fn extract<T: FromRequest<(), M>, M>() -> Result<T, ServerFnError> {
+    pub async fn extract<T: FromRequest<Self, M>, M>() -> Result<T, ServerFnError> {
         let this = Self::current()
             .ok_or_else(|| ServerFnError::new("No FullstackContext found".to_string()))?;
 
         let parts = this.request_headers.read().clone();
         let request = axum_core::extract::Request::from_parts(parts, Default::default());
-        match T::from_request(request, &()).await {
+        match T::from_request(request, &this).await {
             Ok(res) => Ok(res),
             Err(err) => {
                 let resp = err.into_response();
@@ -255,7 +266,7 @@ pub fn commit_initial_chunk() {
 
 /// Extract an axum extractor from the current request.
 #[deprecated(note = "Use FullstackContext::extract instead", since = "0.7.0")]
-pub fn extract<T: FromRequest<(), M>, M>(
+pub fn extract<T: FromRequest<FullstackContext, M>, M>(
 ) -> impl std::future::Future<Output = Result<T, ServerFnError>> {
     FullstackContext::extract::<T, M>()
 }

packages/fullstack-server/src/launch.rs

@@ -1,6 +1,6 @@
 //! A launch function that creates an axum router for the LaunchBuilder
 
-use crate::{server::DioxusRouterExt, RenderHandleState, ServeConfig};
+use crate::{server::DioxusRouterExt, FullstackState, ServeConfig};
 use anyhow::Context;
 use axum::{
     body::Body,
@@ -9,10 +9,9 @@ use axum::{
     Router,
 };
 use dioxus_cli_config::base_path;
-use dioxus_core::Element;
+use dioxus_core::{ComponentFunction, Element};
-#[cfg(not(target_arch = "wasm32"))]
+
-use dioxus_core::{RenderError, VNode};
+use dioxus_devtools::{DevserverMsg, HotReloadMsg};
-use dioxus_devtools::DevserverMsg;
 use futures_util::{stream::FusedStream, StreamExt};
 use hyper::body::Incoming;
 use hyper_util::server::conn::auto::Builder as HyperBuilder;
@@ -20,14 +19,19 @@ use hyper_util::{
     rt::{TokioExecutor, TokioIo},
     service::TowerToHyperService,
 };
-use std::sync::Arc;
+use std::{any::Any, net::SocketAddr, prelude::rust_2024::Future};
-use std::{any::Any, collections::HashMap, net::SocketAddr, prelude::rust_2024::Future};
+use std::{pin::Pin, sync::Arc};
-use tokio::net::TcpStream;
+use subsecond::HotFn;
-use tokio_util::task::LocalPoolHandle;
+use tokio_util::either::Either;
 use tower::{Service, ServiceExt as _};
 
-type ContextList = Vec<Box<dyn Fn() -> Box<dyn Any> + Send + Sync>>;
+#[cfg(not(target_arch = "wasm32"))]
+use {
+    dioxus_core::{RenderError, VNode},
+    tokio::net::TcpListener,
+};
 
+type ContextList = Vec<Box<dyn Fn() -> Box<dyn Any> + Send + Sync>>;
 type BaseComp = fn() -> Element;
 
 /// Launch a fullstack app with the given root component.
@@ -52,10 +56,6 @@ async fn serve_server(
     contexts: Vec<Box<dyn Fn() -> Box<dyn Any> + Send + Sync>>,
     platform_config: Vec<Box<dyn Any>>,
 ) {
-    let (devtools_tx, mut devtools_rx) = futures_channel::mpsc::unbounded();
-
-    dioxus_devtools::connect(move |msg| _ = devtools_tx.unbounded_send(msg));
-
     let mut cfg = platform_config
         .into_iter()
         .find_map(|cfg| cfg.downcast::<ServeConfig>().ok().map(|b| *b))
@@ -67,236 +67,19 @@ async fn serve_server(
         cfg.context_providers.push(arced);
     }
 
-    // Get the address the server should run on. If the CLI is running, the CLI proxies fullstack into the main address
+    let cb = move || {
-    // and we use the generated address the CLI gives us
+        let cfg = cfg.clone();
-    let address = dioxus_cli_config::fullstack_address_or_localhost();
+        Box::pin(async move {
-
+            Ok(apply_base_path(
-    // Create the router and register the server functions under the basepath.
+                Router::new().serve_dioxus_application(cfg.clone(), original_root),
-    let router = apply_base_path(
+                original_root,
-        Router::new().serve_dioxus_application(cfg.clone(), original_root),
+                cfg.clone(),
-        original_root,
+                base_path().map(|s| s.to_string()),
-        cfg.clone(),
+            ))
-        base_path().map(|s| s.to_string()),
+        }) as _
-    );
-
-    let task_pool = LocalPoolHandle::new(
-        std::thread::available_parallelism()
-            .map(usize::from)
-            .unwrap_or(1),
-    );
-
-    let mut make_service = router.into_make_service();
-
-    let listener = tokio::net::TcpListener::bind(address).await.unwrap();
-
-    enum Msg {
-        TcpStream(std::io::Result<(TcpStream, SocketAddr)>),
-        Devtools(DevserverMsg),
-    }
-
-    let (shutdown_tx, shutdown_rx) = tokio::sync::watch::channel(0);
-    let mut hr_idx = 0;
-
-    // Manually loop on accepting connections so we can also respond to devtools messages
-    loop {
-        let res = tokio::select! {
-            res = listener.accept() => Msg::TcpStream(res),
-            msg = devtools_rx.next(), if !devtools_rx.is_terminated() => {
-                if let Some(msg) = msg {
-                    Msg::Devtools(msg)
-                } else {
-                    continue;
-                }
-            }
-        };
-
-        match res {
-            Msg::TcpStream(Ok((tcp_stream, _remote_addr))) => {
-                let this_hr_index = hr_idx;
-                let mut make_service = make_service.clone();
-                let mut shutdown_rx = shutdown_rx.clone();
-
-                task_pool.spawn_pinned(move || async move {
-                    let tcp_stream = TokioIo::new(tcp_stream);
-
-                    std::future::poll_fn(|cx| {
-                        <IntoMakeService<Router> as tower::Service<Request>>::poll_ready(
-                            &mut make_service,
-                            cx,
-                        )
-                    })
-                    .await
-                    .unwrap();
-
-                    let tower_service = make_service
-                        .call(())
-                        .await
-                        .unwrap()
-                        .map_request(|req: Request<Incoming>| req.map(Body::new));
-
-                    // upgrades needed for websockets
-                    let builder = HyperBuilder::new(TokioExecutor::new());
-                    let connection = builder.serve_connection_with_upgrades(
-                        tcp_stream,
-                        TowerToHyperService::new(tower_service),
-                    );
-
-                    tokio::select! {
-                        res = connection => {
-                            if let Err(_err) = res {
-                                // This error only appears when the client doesn't send a request and
-                                // terminate the connection.
-                                //
-                                // If client sends one request then terminate connection whenever, it doesn't
-                                // appear.
-                            }
-                        }
-                        _res = shutdown_rx.wait_for(|i| *i == this_hr_index + 1) => {}
-                    }
-                });
-            }
-            Msg::TcpStream(Err(_)) => {}
-            // We need to delete our old router and build a new one
-            //
-            // one challenge is that the server functions are sitting in the dlopened lib and no longer
-            // accessible by us (the original process)
-            //
-            // We need to somehow get them out... ?
-            //
-            // for now we just support editing existing server functions
-            Msg::Devtools(devserver_msg) => {
-                match devserver_msg {
-                    DevserverMsg::HotReload(hot_reload_msg) => {
-                        if hot_reload_msg.for_build_id == Some(dioxus_cli_config::build_id()) {
-                            if let Some(table) = hot_reload_msg.jump_table {
-                                use crate::ServerFunction;
-
-                                unsafe { dioxus_devtools::subsecond::apply_patch(table).unwrap() };
-
-                                let mut new_router = Router::new().serve_static_assets();
-                                let new_cfg = ServeConfig::new();
-
-                                let server_fn_iter = ServerFunction::collect();
-
-                                // de-duplicate iteratively by preferring the most recent (first, since it's linked)
-                                let mut server_fn_map: HashMap<_, _> = HashMap::new();
-                                for f in server_fn_iter.into_iter().rev() {
-                                    server_fn_map.insert(f.path(), f);
-                                }
-
-                                for (_, fn_) in server_fn_map {
-                                    tracing::trace!(
-                                        "Registering server function: {:?} {:?}",
-                                        fn_.path(),
-                                        fn_.method()
-                                    );
-                                    new_router = fn_.register_server_fn_on_router(new_router);
-                                }
-
-                                let hot_root = subsecond::HotFn::current(original_root);
-                                let new_root_addr = hot_root.ptr_address().0 as usize as *const ();
-                                let new_root = unsafe {
-                                    std::mem::transmute::<*const (), fn() -> Element>(new_root_addr)
-                                };
-
-                                crate::document::reset_renderer();
-
-                                let state = RenderHandleState::new(new_cfg.clone(), new_root);
-
-                                let fallback_handler =
-                                    axum::routing::get(RenderHandleState::render_handler)
-                                        .with_state(state);
-
-                                make_service = apply_base_path(
-                                    new_router.fallback(fallback_handler),
-                                    new_root,
-                                    new_cfg.clone(),
-                                    base_path().map(|s| s.to_string()),
-                                )
-                                .into_make_service();
-
-                                shutdown_tx.send_modify(|i| {
-                                    *i += 1;
-                                    hr_idx += 1;
-                                });
-                            }
-                        }
-                    }
-                    DevserverMsg::FullReloadStart => {}
-                    DevserverMsg::FullReloadFailed => {}
-                    DevserverMsg::FullReloadCommand => {}
-                    DevserverMsg::Shutdown => {}
-                    _ => {}
-                }
-            }
-        }
-    }
-}
-
-fn apply_base_path(
-    mut router: Router,
-    root: fn() -> Element,
-    cfg: ServeConfig,
-    base_path: Option<String>,
-) -> Router {
-    if let Some(base_path) = base_path {
-        let base_path = base_path.trim_matches('/');
-
-        // If there is a base path, nest the router under it and serve the root route manually
-        // Nesting a route in axum only serves /base_path or /base_path/ not both
-        router = Router::new().nest(&format!("/{base_path}/"), router).route(
-            &format!("/{base_path}"),
-            axum::routing::method_routing::get(
-                |state: State<RenderHandleState>, mut request: Request<Body>| async move {
-                    // The root of the base path always looks like the root from dioxus fullstack
-                    *request.uri_mut() = "/".parse().unwrap();
-                    RenderHandleState::render_handler(state, request).await
-                },
-            )
-            .with_state(RenderHandleState::new(cfg, root)),
-        )
-    }
-
-    router
-}
-
-/// Serve a fullstack dioxus application with a custom axum router.
-///
-/// This function sets up an async runtime, enables the default dioxus logger, runs the provided initializer,
-/// and then starts an axum server with the returned router.
-///
-/// The axum router will be bound to the address specified by the `IP` and `PORT` environment variables,
-/// defaulting to `127.0.0.1:8080` if not set.
-pub fn serve<F>(mut serve_it: impl FnMut() -> F) -> !
-where
-    F: Future<Output = Result<Router, anyhow::Error>>,
-{
-    dioxus_logger::initialize_default();
-
-    let app_future = async move {
-        let router = serve_it().await.expect("Failed to create axum router");
-        let address = dioxus_cli_config::fullstack_address_or_localhost();
-        let listener = tokio::net::TcpListener::bind(address)
-            .await
-            .with_context(|| format!("Failed to bind app to given address: {address}"))
-            .unwrap();
-        tracing::trace!("Listening on {address}");
-        axum::serve::serve(listener, router)
-            .await
-            .expect("Failed to serve axum app");
     };
 
-    if let Ok(handle) = tokio::runtime::Handle::try_current() {
+    serve_router(cb, dioxus_cli_config::fullstack_address_or_localhost()).await;
-        handle.block_on(app_future);
-    } else {
-        tokio::runtime::Builder::new_multi_thread()
-            .enable_all()
-            .build()
-            .unwrap()
-            .block_on(app_future);
-    }
-
-    unreachable!("Serving a fullstack app should never return")
 }
 
 /// Create a router that serves the dioxus application at the appropriate base path.
@@ -319,3 +102,189 @@ pub fn router(app: fn() -> Element) -> Router {
         base_path().map(|s| s.to_string()),
     )
 }
+
+/// Serve a fullstack dioxus application with a custom axum router.
+///
+/// This function sets up an async runtime, enables the default dioxus logger, runs the provided initializer,
+/// and then starts an axum server with the returned router.
+///
+/// The axum router will be bound to the address specified by the `IP` and `PORT` environment variables,
+/// defaulting to `127.0.0.1:8080` if not set.
+///
+/// This function uses axum to block on serving the application, and will not return.
+pub fn serve<F>(mut serve_it: impl FnMut() -> F) -> !
+where
+    F: Future<Output = Result<Router, anyhow::Error>> + 'static,
+{
+    let cb = move || Box::pin(serve_it()) as _;
+
+    block_on(
+        async move { serve_router(cb, dioxus_cli_config::fullstack_address_or_localhost()).await },
+    );
+
+    unreachable!("Serving a fullstack app should never return")
+}
+
+/// Serve a fullstack dioxus application with a custom axum router.
+///
+/// This function enables the dioxus logger and then serves the axum server with hot-reloading support.
+///
+/// To enable hot-reloading of the router, the provided `serve_callback` should return a new `Router`
+/// each time it is called.
+pub async fn serve_router(
+    mut serve_callback: impl FnMut() -> Pin<Box<dyn Future<Output = Result<Router, anyhow::Error>>>>,
+    addr: SocketAddr,
+) {
+    dioxus_logger::initialize_default();
+
+    let listener = TcpListener::bind(addr)
+        .await
+        .with_context(|| format!("Failed to bind to address {addr}"))
+        .unwrap();
+
+    // If we're not in debug mode, just serve the app normally
+    if !cfg!(debug_assertions) {
+        axum::serve(listener, serve_callback().await.unwrap())
+            .await
+            .unwrap();
+        return;
+    }
+
+    // Wire up the devtools connection. The sender only sends messages in dev.
+    let (devtools_tx, mut devtools_rx) = futures_channel::mpsc::unbounded();
+    dioxus_devtools::connect(move |msg| _ = devtools_tx.unbounded_send(msg));
+
+    let mut hot_serve_callback = HotFn::current(serve_callback);
+    let mut make_service = hot_serve_callback
+        .call(())
+        .await
+        .map(|router| router.into_make_service())
+        .unwrap();
+
+    let (shutdown_tx, _) = tokio::sync::broadcast::channel(1);
+    let our_build_id = Some(dioxus_cli_config::build_id());
+
+    // Manually loop on accepting connections so we can also respond to devtools messages
+    loop {
+        let res = tokio::select! {
+            res = listener.accept() => Either::Left(res),
+            Some(msg) = devtools_rx.next(), if !devtools_rx.is_terminated() => Either::Right(msg),
+            else => continue
+        };
+
+        match res {
+            Either::Left(Ok((tcp_stream, _remote_addr))) => {
+                let mut make_service = make_service.clone();
+                let mut shutdown_rx = shutdown_tx.subscribe();
+
+                tokio::task::spawn(async move {
+                    let tcp_stream = TokioIo::new(tcp_stream);
+
+                    std::future::poll_fn(|cx| {
+                        <IntoMakeService<Router> as tower::Service<Request>>::poll_ready(
+                            &mut make_service,
+                            cx,
+                        )
+                    })
+                    .await
+                    .expect("Infallible");
+
+                    // upgrades needed for websockets
+                    let builder = HyperBuilder::new(TokioExecutor::new());
+                    let connection = builder.serve_connection_with_upgrades(
+                        tcp_stream,
+                        TowerToHyperService::new(
+                            make_service
+                                .call(())
+                                .await
+                                .unwrap()
+                                .map_request(|req: Request<Incoming>| req.map(Body::new)),
+                        ),
+                    );
+
+                    tokio::select! {
+                        res = connection => {
+                            if let Err(_err) = res {
+                                // This error only appears when the client doesn't send a request and
+                                // terminate the connection.
+                                //
+                                // If client sends one request then terminate connection whenever, it doesn't
+                                // appear.
+                            }
+                        }
+                        _res = shutdown_rx.recv() => {}
+                    }
+                });
+            }
+
+            // Handle just hot-patches for now.
+            // We don't do RSX hot-reload since usually the client handles that once the page is loaded.
+            //
+            // todo(jon): I *believe* SSR is resilient to RSX changes, but we should verify that...
+            Either::Right(DevserverMsg::HotReload(HotReloadMsg {
+                jump_table: Some(table),
+                for_build_id,
+                ..
+            })) if for_build_id == our_build_id => {
+                // Apply the hot-reload patch to the dioxus devtools first
+                unsafe { dioxus_devtools::subsecond::apply_patch(table).unwrap() };
+
+                // Now recreate the router
+                // We panic here because we don't want their app to continue in a maybe-corrupted state
+                make_service = hot_serve_callback
+                    .call(())
+                    .await
+                    .expect("Failed to create new router after hot-patch!")
+                    .into_make_service();
+
+                // Make sure to wipe out the renderer state so we don't have stale elements
+                crate::document::reset_renderer();
+
+                _ = shutdown_tx.send(());
+            }
+
+            // Explicitly don't handle RSX hot-reloads on the server
+            // The client will handle that once the page is loaded. If we handled it here,
+            _ => {}
+        }
+    }
+}
+
+fn block_on<T>(app_future: impl Future<Output = T>) {
+    if let Ok(handle) = tokio::runtime::Handle::try_current() {
+        handle.block_on(app_future);
+    } else {
+        tokio::runtime::Builder::new_multi_thread()
+            .enable_all()
+            .build()
+            .unwrap()
+            .block_on(app_future);
+    }
+}
+
+fn apply_base_path<M: 'static>(
+    mut router: Router,
+    root: impl ComponentFunction<(), M> + Send + Sync,
+    cfg: ServeConfig,
+    base_path: Option<String>,
+) -> Router {
+    if let Some(base_path) = base_path {
+        let base_path = base_path.trim_matches('/');
+
+        // If there is a base path, nest the router under it and serve the root route manually
+        // Nesting a route in axum only serves /base_path or /base_path/ not both
+        router = Router::new().nest(&format!("/{base_path}/"), router).route(
+            &format!("/{base_path}"),
+            axum::routing::method_routing::get(
+                |state: State<FullstackState>, mut request: Request<Body>| async move {
+                    // The root of the base path always looks like the root from dioxus fullstack
+                    *request.uri_mut() = "/".parse().unwrap();
+                    FullstackState::render_handler(state, request).await
+                },
+            )
+            .with_state(FullstackState::new(cfg, root)),
+        )
+    }
+
+    router
+}

packages/fullstack-server/src/server.rs

@@ -6,18 +6,177 @@ use axum::{
     body::Body,
     extract::State,
     http::{Request, StatusCode},
-    response::IntoResponse,
+    response::{IntoResponse, Response},
-    response::Response,
     routing::*,
 };
-use dioxus_core::{Element, VirtualDom};
+use dioxus_core::{ComponentFunction, VirtualDom};
 use http::header::*;
 use std::path::{Path, PathBuf};
 use std::sync::Arc;
+use tokio_util::task::LocalPoolHandle;
 use tower::util::MapResponse;
 use tower::ServiceExt;
 use tower_http::services::fs::ServeFileSystemResponseBody;
 
+/// A extension trait with utilities for integrating Dioxus with your Axum router.
+pub trait DioxusRouterExt {
+    /// Serves the static WASM for your Dioxus application (except the generated index.html).
+    ///
+    /// # Example
+    /// ```rust, no_run
+    /// # #![allow(non_snake_case)]
+    /// # use dioxus::prelude::*;
+    /// use dioxus_server::DioxusRouterExt;
+    ///
+    /// #[tokio::main]
+    /// async fn main() -> anyhow::Result<()> {
+    ///     let addr = dioxus::cli_config::fullstack_address_or_localhost();
+    ///     let router = axum::Router::new()
+    ///         // Server side render the application, serve static assets, and register server functions
+    ///         .serve_static_assets()
+    ///         // Server render the application
+    ///         // ...
+    ///         .with_state(dioxus_server::FullstackState::headless());
+    ///     let listener = tokio::net::TcpListener::bind(addr).await?;
+    ///     axum::serve(listener, router).await?;
+    ///     Ok(())
+    /// }
+    /// ```
+    fn serve_static_assets(self) -> Router<FullstackState>;
+
+    /// Serves the Dioxus application. This will serve a complete server side rendered application.
+    /// This will serve static assets, server render the application, register server functions, and integrate with hot reloading.
+    ///
+    /// # Example
+    /// ```rust, no_run
+    /// # #![allow(non_snake_case)]
+    /// # use dioxus::prelude::*;
+    /// use dioxus_server::{DioxusRouterExt, ServeConfig};
+    ///
+    /// #[tokio::main]
+    /// async fn main() {
+    ///     let addr = dioxus::cli_config::fullstack_address_or_localhost();
+    ///     let router = axum::Router::new()
+    ///         // Server side render the application, serve static assets, and register server functions
+    ///         .serve_dioxus_application(ServeConfig::new(), app);
+    ///     let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
+    ///     axum::serve(listener, router).await.unwrap();
+    /// }
+    ///
+    /// fn app() -> Element {
+    ///     rsx! { "Hello World" }
+    /// }
+    /// ```
+    fn serve_dioxus_application<M: 'static>(
+        self,
+        cfg: ServeConfig,
+        app: impl ComponentFunction<(), M> + Send + Sync,
+    ) -> Router<()>;
+
+    /// Registers server functions with the default handler.
+    ///
+    /// # Example
+    /// ```rust, no_run
+    /// # use dioxus::prelude::*;
+    /// # use dioxus_server::DioxusRouterExt;
+    /// #[tokio::main]
+    /// async fn main() {
+    ///     let addr = dioxus::cli_config::fullstack_address_or_localhost();
+    ///     let router = axum::Router::new()
+    ///         // Register server functions routes with the default handler
+    ///         .register_server_functions()
+    ///         .with_state(dioxus_server::FullstackState::headless());
+    ///     let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
+    ///     axum::serve(listener, router).await.unwrap();
+    /// }
+    /// ```
+    #[allow(dead_code)]
+    fn register_server_functions(self) -> Router<FullstackState>;
+
+    /// Serves a Dioxus application without static assets.
+    /// Sets up server function routes and rendering endpoints only.
+    ///
+    /// Useful for WebAssembly environments or when static assets
+    /// are served by another system.
+    ///
+    /// # Example
+    /// ```rust, no_run
+    /// # use dioxus::prelude::*;
+    /// # use dioxus_server::{DioxusRouterExt, ServeConfig};
+    /// #[tokio::main]
+    /// async fn main() {
+    ///     let router = axum::Router::new()
+    ///         .serve_api_application(ServeConfig::new(), app)
+    ///         .into_make_service();
+    ///     // ...
+    /// }
+    ///
+    /// fn app() -> Element {
+    ///     rsx! { "Hello World" }
+    /// }
+    /// ```
+    fn serve_api_application<M: 'static>(
+        self,
+        cfg: ServeConfig,
+        app: impl ComponentFunction<(), M> + Send + Sync,
+    ) -> Router<()>
+    where
+        Self: Sized;
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+impl DioxusRouterExt for Router<FullstackState> {
+    fn register_server_functions(mut self) -> Router<FullstackState> {
+        use std::collections::HashSet;
+
+        let mut seen = HashSet::new();
+
+        for func in ServerFunction::collect() {
+            if seen.insert(format!("{} {}", func.method(), func.path())) {
+                tracing::info!(
+                    "Registering server function: {} {}",
+                    func.method(),
+                    func.path()
+                );
+
+                self = self.route(func.path(), func.method_router())
+            }
+        }
+
+        self
+    }
+
+    fn serve_static_assets(self) -> Router<FullstackState> {
+        let Some(public_path) = public_path() else {
+            return self;
+        };
+
+        // Serve all files in public folder except index.html
+        serve_dir_cached(self, &public_path, &public_path)
+    }
+
+    fn serve_api_application<M: 'static>(
+        self,
+        cfg: ServeConfig,
+        app: impl ComponentFunction<(), M> + Send + Sync,
+    ) -> Router<()> {
+        self.register_server_functions()
+            .fallback(get(FullstackState::render_handler))
+            .with_state(FullstackState::new(cfg, app))
+    }
+
+    fn serve_dioxus_application<M: 'static>(
+        self,
+        cfg: ServeConfig,
+        app: impl ComponentFunction<(), M> + Send + Sync,
+    ) -> Router<()> {
+        self.register_server_functions()
+            .serve_static_assets()
+            .fallback(get(FullstackState::render_handler))
+            .with_state(FullstackState::new(cfg, app))
+    }
+}
+
 /// SSR renderer handler for Axum with added context injection.
 ///
 /// # Example
@@ -27,7 +186,7 @@ use tower_http::services::fs::ServeFileSystemResponseBody;
 ///
 /// use axum::routing::get;
 /// use dioxus::prelude::*;
-/// use dioxus_server::{RenderHandleState, render_handler, ServeConfig};
+/// use dioxus_server::{FullstackState, render_handler, ServeConfig};
 ///
 /// fn app() -> Element {
 ///     rsx! {
@@ -44,206 +203,89 @@ use tower_http::services::fs::ServeFileSystemResponseBody;
 ///         // to inject the context into server functions running outside
 ///         // of an SSR render context.
 ///         .fallback(get(render_handler))
-///         .with_state(RenderHandleState::new(ServeConfig::new(), app));
+///         .with_state(FullstackState::new(ServeConfig::new(), app));
 ///
 ///     let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
 ///     axum::serve(listener, router).await.unwrap();
 /// }
 /// ```
 pub async fn render_handler(
-    State(state): State<RenderHandleState>,
+    State(state): State<FullstackState>,
     request: Request<Body>,
 ) -> impl IntoResponse {
-    RenderHandleState::render_handler(State(state), request).await
+    FullstackState::render_handler(State(state), request).await
 }
 
-/// A extension trait with utilities for integrating Dioxus with your Axum router.
+/// State used by [`FullstackState::render_handler`] to render a dioxus component with axum
-pub trait DioxusRouterExt<S>: DioxusRouterFnExt<S> {
-    /// Serves the static WASM for your Dioxus application (except the generated index.html).
-    ///
-    /// # Example
-    /// ```rust, no_run
-    /// # #![allow(non_snake_case)]
-    /// # use dioxus::prelude::*;
-    /// use dioxus_server::{DioxusRouterExt, DioxusRouterFnExt};
-    ///
-    /// #[tokio::main]
-    /// async fn main() -> anyhow::Result<()> {
-    ///     let addr = dioxus::cli_config::fullstack_address_or_localhost();
-    ///     let router = axum::Router::new()
-    ///         // Server side render the application, serve static assets, and register server functions
-    ///         .serve_static_assets()
-    ///         // Server render the application
-    ///         // ...
-    ///         .into_make_service();
-    ///     let listener = tokio::net::TcpListener::bind(addr).await?;
-    ///     axum::serve(listener, router).await?;
-    ///     Ok(())
-    /// }
-    /// ```
-    fn serve_static_assets(self) -> Self
-    where
-        Self: Sized;
-
-    /// Serves the Dioxus application. This will serve a complete server side rendered application.
-    /// This will serve static assets, server render the application, register server functions, and integrate with hot reloading.
-    ///
-    /// # Example
-    /// ```rust, no_run
-    /// # #![allow(non_snake_case)]
-    /// # use dioxus::prelude::*;
-    /// use dioxus_server::{DioxusRouterExt, DioxusRouterFnExt, ServeConfig};
-    ///
-    /// #[tokio::main]
-    /// async fn main() {
-    ///     let addr = dioxus::cli_config::fullstack_address_or_localhost();
-    ///     let router = axum::Router::new()
-    ///         // Server side render the application, serve static assets, and register server functions
-    ///         .serve_dioxus_application(ServeConfig::new(), app)
-    ///         .into_make_service();
-    ///     let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
-    ///     axum::serve(listener, router).await.unwrap();
-    /// }
-    ///
-    /// fn app() -> Element {
-    ///     rsx! { "Hello World" }
-    /// }
-    /// ```
-    fn serve_dioxus_application(self, cfg: ServeConfig, app: fn() -> Element) -> Self
-    where
-        Self: Sized;
-}
-
-#[cfg(not(target_arch = "wasm32"))]
-impl<S> DioxusRouterExt<S> for Router<S>
-where
-    S: Send + Sync + Clone + 'static,
-{
-    fn serve_static_assets(self) -> Self {
-        let Some(public_path) = public_path() else {
-            return self;
-        };
-
-        // Serve all files in public folder except index.html
-        serve_dir_cached(self, &public_path, &public_path)
-    }
-
-    fn serve_dioxus_application(self, cfg: ServeConfig, app: fn() -> Element) -> Self {
-        self.register_server_functions()
-            .serve_static_assets()
-            .fallback(
-                get(RenderHandleState::render_handler).with_state(RenderHandleState::new(cfg, app)),
-            )
-    }
-}
-
-/// A extension trait with server function utilities for integrating Dioxus with your Axum router.
-pub trait DioxusRouterFnExt<S> {
-    /// Registers server functions with the default handler.
-    ///
-    /// # Example
-    /// ```rust, no_run
-    /// # use dioxus::prelude::*;
-    /// # use dioxus_server::DioxusRouterFnExt;
-    /// #[tokio::main]
-    /// async fn main() {
-    ///     let addr = dioxus::cli_config::fullstack_address_or_localhost();
-    ///     let router = axum::Router::new()
-    ///         // Register server functions routes with the default handler
-    ///         .register_server_functions()
-    ///         .into_make_service();
-    ///     let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
-    ///     axum::serve(listener, router).await.unwrap();
-    /// }
-    /// ```
-    #[allow(dead_code)]
-    fn register_server_functions(self) -> Self
-    where
-        Self: Sized;
-
-    /// Serves a Dioxus application without static assets.
-    /// Sets up server function routes and rendering endpoints only.
-    ///
-    /// Useful for WebAssembly environments or when static assets
-    /// are served by another system.
-    ///
-    /// # Example
-    /// ```rust, no_run
-    /// # use dioxus::prelude::*;
-    /// # use dioxus_server::{DioxusRouterFnExt, ServeConfig};
-    /// #[tokio::main]
-    /// async fn main() {
-    ///     let router = axum::Router::new()
-    ///         .serve_api_application(ServeConfig::new(), app)
-    ///         .into_make_service();
-    ///     // ...
-    /// }
-    ///
-    /// fn app() -> Element {
-    ///     rsx! { "Hello World" }
-    /// }
-    /// ```
-    fn serve_api_application(self, cfg: ServeConfig, app: fn() -> Element) -> Self
-    where
-        Self: Sized;
-}
-
-impl<S: Send + Sync + Clone + 'static> DioxusRouterFnExt<S> for Router<S> {
-    fn register_server_functions(mut self) -> Self {
-        for func in ServerFunction::collect() {
-            tracing::info!(
-                "Registering server function: {} {}",
-                func.method(),
-                func.path()
-            );
-
-            self = func.register_server_fn_on_router(self);
-        }
-        self
-    }
-
-    fn serve_api_application(self, cfg: ServeConfig, app: fn() -> Element) -> Self
-    where
-        Self: Sized,
-    {
-        self.register_server_functions().fallback(
-            get(RenderHandleState::render_handler).with_state(RenderHandleState::new(cfg, app)),
-        )
-    }
-}
-
-/// State used by [`RenderHandleState::render_handler`] to render a dioxus component with axum
 #[derive(Clone)]
-pub struct RenderHandleState {
+pub struct FullstackState {
     config: ServeConfig,
     build_virtual_dom: Arc<dyn Fn() -> VirtualDom + Send + Sync>,
     renderers: Arc<SsrRendererPool>,
+    pub(crate) rt: LocalPoolHandle,
 }
 
-impl RenderHandleState {
+impl FullstackState {
-    /// Create a new [`RenderHandleState`]
+    /// Create a headless [`FullstackState`] without a root component.
-    pub fn new(config: ServeConfig, root: fn() -> Element) -> Self {
+    ///
+    /// This won't render pages, but can still be used to register server functions and serve static assets.
+    pub fn headless() -> Self {
+        let rt = LocalPoolHandle::new(
+            std::thread::available_parallelism()
+                .map(usize::from)
+                .unwrap_or(1),
+        );
+
         Self {
-            renderers: Arc::new(SsrRendererPool::new(4, config.incremental.clone())),
+            renderers: Arc::new(SsrRendererPool::new(4, None)),
-            build_virtual_dom: Arc::new(move || VirtualDom::new(root)),
+            build_virtual_dom: Arc::new(|| {
-            config,
+                panic!("No root component provided for headless FullstackState")
+            }),
+            config: ServeConfig::new(),
+            rt,
         }
     }
 
-    /// Create a new [`RenderHandleState`] with a custom [`VirtualDom`] factory. This method can be
+    /// Create a new [`FullstackState`]
+    pub fn new<M: 'static>(
+        config: ServeConfig,
+        root: impl ComponentFunction<(), M> + Send + Sync + 'static,
+    ) -> Self {
+        let rt = LocalPoolHandle::new(
+            std::thread::available_parallelism()
+                .map(usize::from)
+                .unwrap_or(1),
+        );
+
+        Self {
+            renderers: Arc::new(SsrRendererPool::new(4, config.incremental.clone())),
+            build_virtual_dom: Arc::new(move || VirtualDom::new_with_props(root.clone(), ())),
+            config,
+            rt,
+        }
+    }
+
+    /// Create a new [`FullstackState`] with a custom [`VirtualDom`] factory. This method can be
     /// used to pass context into the root component of your application.
     pub fn new_with_virtual_dom_factory(
         config: ServeConfig,
         build_virtual_dom: impl Fn() -> VirtualDom + Send + Sync + 'static,
     ) -> Self {
+        let rt = LocalPoolHandle::new(
+            std::thread::available_parallelism()
+                .map(usize::from)
+                .unwrap_or(1),
+        );
+
         Self {
             renderers: Arc::new(SsrRendererPool::new(4, config.incremental.clone())),
             config,
             build_virtual_dom: Arc::new(build_virtual_dom),
+            rt,
         }
     }
 
-    /// Set the [`ServeConfig`] for this [`RenderHandleState`]
+    /// Set the [`ServeConfig`] for this [`FullstackState`]
     pub fn with_config(mut self, config: ServeConfig) -> Self {
         self.config = config;
         self
@@ -258,7 +300,7 @@ impl RenderHandleState {
     ///
     /// use axum::routing::get;
     /// use dioxus::prelude::*;
-    /// use dioxus_server::{RenderHandleState, render_handler, ServeConfig};
+    /// use dioxus_server::{FullstackState, render_handler, ServeConfig};
     ///
     /// fn app() -> Element {
     ///     rsx! {
@@ -275,7 +317,7 @@ impl RenderHandleState {
     ///         // to inject the context into server functions running outside
     ///         // of an SSR render context.
     ///         .fallback(get(render_handler))
-    ///         .with_state(RenderHandleState::new(ServeConfig::new(), app))
+    ///         .with_state(FullstackState::new(ServeConfig::new(), app))
     ///         .into_make_service();
     ///
     ///     let listener = tokio::net::TcpListener::bind(addr).await.unwrap();
@@ -288,7 +330,7 @@ impl RenderHandleState {
         let response = state
             .renderers
             .clone()
-            .render_to(parts, &state.config, {
+            .render_to(parts, &state.config, &state.rt, {
                 let build_virtual_dom = state.build_virtual_dom.clone();
                 let context_providers = state.config.context_providers.clone();
                 move || {

packages/fullstack-server/src/serverfn.rs

@@ -1,35 +1,33 @@
-use axum::body::Body;
+use crate::FullstackState;
-use axum::routing::MethodRouter;
+use axum::{
-use axum::Router;
+    body::Body,
-use dashmap::DashMap;
+    extract::{Request, State},
-use dioxus_fullstack_core::{DioxusServerState, FullstackContext};
+    response::Response,
-use http::Method;
+    routing::MethodRouter,
-use std::{marker::PhantomData, sync::LazyLock};
+};
-
+use dioxus_fullstack_core::FullstackContext;
-pub type AxumRequest = http::Request<Body>;
+use http::{Method, StatusCode};
-pub type AxumResponse = http::Response<Body>;
+use std::{pin::Pin, prelude::rust_2024::Future};
 
 /// A function endpoint that can be called from the client.
 #[derive(Clone)]
-pub struct ServerFunction<Caller = ()> {
+pub struct ServerFunction {
     path: &'static str,
     method: Method,
-    handler: fn() -> MethodRouter<DioxusServerState>,
+    handler: fn() -> MethodRouter<FullstackState>,
-    _phantom: PhantomData<Caller>,
 }
 
 impl ServerFunction {
-    /// Create a new server function object.
+    /// Create a new server function object from a MethodRouter
     pub const fn new(
         method: Method,
         path: &'static str,
-        handler: fn() -> MethodRouter<DioxusServerState>,
+        handler: fn() -> MethodRouter<FullstackState>,
     ) -> Self {
         Self {
             path,
             method,
             handler,
-            _phantom: PhantomData,
         }
     }
 
@@ -43,72 +41,103 @@ impl ServerFunction {
         self.method.clone()
     }
 
+    /// Collect all globally registered server functions
     pub fn collect() -> Vec<&'static ServerFunction> {
         inventory::iter::<ServerFunction>().collect()
     }
 
-    pub fn handler(&self) -> fn() -> MethodRouter<DioxusServerState> {
+    /// Create a `MethodRouter` for this server function that can be mounted on an `axum::Router`.
-        self.handler
+    ///
+    /// This runs the handler inside the required `FullstackContext` scope and populates
+    /// `FullstackContext` so that the handler can use those features.
+    ///
+    /// It also runs the server function inside a tokio `LocalPool` to allow !Send futures.
+    pub fn method_router(&self) -> MethodRouter<FullstackState> {
+        (self.handler)()
     }
 
-    pub fn register_server_fn_on_router<S>(&'static self, router: Router<S>) -> Router<S>
+    /// Creates a new `MethodRouter` for the given method and !Send handler.
-    where
+    ///
-        S: Send + Sync + Clone + 'static,
+    /// This is used internally by the `ServerFunction` to create the method router that this
-    {
+    /// server function uses.
-        // // store Accepts and Referrer in case we need them for redirect (below)
+    #[allow(clippy::type_complexity)]
-        // let referrer = req.headers().get(REFERER).cloned();
+    pub fn make_handler(
-        // let accepts_html = req
+        method: Method,
-        //     .headers()
+        handler: fn(State<FullstackContext>, Request) -> Pin<Box<dyn Future<Output = Response>>>,
-        //     .get(ACCEPT)
+    ) -> MethodRouter<FullstackState> {
-        //     .and_then(|v| v.to_str().ok())
+        axum::routing::method_routing::on(
-        //     .map(|v| v.contains("text/html"))
+            method
-        //     .unwrap_or(false);
+                .try_into()
+                .expect("MethodFilter only supports standard HTTP methods"),
+            move |state: State<FullstackState>, request: Request| async move {
+                // Allow !Send futures by running in the render handlers pinned local pool
+                let result = state.rt.spawn_pinned(move || async move {
+                    use dioxus_fullstack_core::FullstackContext;
+                    use http::header::{ACCEPT, LOCATION, REFERER};
+                    use http::StatusCode;
 
-        // // it it accepts text/html (i.e., is a plain form post) and doesn't already have a
+                    // todo: we're copying the parts here, but it'd be ideal if we didn't.
-        // // Location set, then redirect to Referer
+                    // We can probably just pass the URI in so the matching logic can work and then
-        // if accepts_html {
+                    // in the server function, do all extraction via FullstackContext. This ensures
-        //     if let Some(referrer) = referrer {
+                    // calls to `.remove()` work as expected.
-        //         let has_location = res.headers().get(LOCATION).is_some();
+                    let (parts, body) = request.into_parts();
-        //         if !has_location {
+                    let server_context = FullstackContext::new(parts.clone());
-        //             *res.status_mut() = StatusCode::FOUND;
+                    let request = axum::extract::Request::from_parts(parts, body);
-        //             res.headers_mut().insert(LOCATION, referrer);
-        //         }
-        //     }
-        // }
 
-        async fn server_context_middleware(
+                    // store Accepts and Referrer in case we need them for redirect (below)
-            request: axum::extract::Request,
+                    let referrer = request.headers().get(REFERER).cloned();
-            next: axum::middleware::Next,
+                    let accepts_html = request
-        ) -> axum::response::Response {
+                        .headers()
-            let (parts, body) = request.into_parts();
+                        .get(ACCEPT)
-            let server_context = FullstackContext::new(parts.clone());
+                        .and_then(|v| v.to_str().ok())
-            let request = axum::extract::Request::from_parts(parts, body);
+                        .map(|v| v.contains("text/html"))
+                        .unwrap_or(false);
 
-            server_context
+                    server_context
-                .scope(async move {
+                        .clone()
-                    // Run the next middleware / handler inside the server context
+                        .scope(async move {
-                    let mut response = next.run(request).await;
+                            // Run the next middleware / handler inside the server context
+                            let mut response = handler(State(server_context), request).await;
 
-                    let server_context = FullstackContext::current().expect(
+                            let server_context = FullstackContext::current().expect(
-                        "Server context should be available inside the server context scope",
+                                "Server context should be available inside the server context scope",
-                    );
+                            );
 
-                    // Get the extra response headers set during the handler and add them to the response
+                            // Get the extra response headers set during the handler and add them to the response
-                    let headers = server_context.take_response_headers();
+                            let headers = server_context.take_response_headers();
-                    if let Some(headers) = headers {
+                            if let Some(headers) = headers {
-                        response.headers_mut().extend(headers);
+                                response.headers_mut().extend(headers);
-                    }
+                            }
 
-                    response
+                            // it it accepts text/html (i.e., is a plain form post) and doesn't already have a
-                })
+                            // Location set, then redirect to Referer
-                .await
+                            if accepts_html {
-        }
+                                if let Some(referrer) = referrer {
+                                    let has_location = response.headers().get(LOCATION).is_some();
+                                    if !has_location {
+                                        *response.status_mut() = StatusCode::FOUND;
+                                        response.headers_mut().insert(LOCATION, referrer);
+                                    }
+                                }
+                            }
 
-        router.route(
+                            response
-            self.path(),
+                        })
-            ((self.handler)())
+                        .await
-                .with_state(DioxusServerState {})
+                }).await;
-                .layer(axum::middleware::from_fn(server_context_middleware)),
+
+                match result {
+                    Ok(response) => response,
+                    Err(err) => Response::builder()
+                        .status(StatusCode::INTERNAL_SERVER_ERROR)
+                        .body(Body::new(if cfg!(debug_assertions) {
+                            format!("Server function panicked: {}", err)
+                        } else {
+                            "Internal Server Error".to_string()
+                        }))
+                        .unwrap(),
+                }
+            },
         )
     }
 }
@@ -120,18 +149,3 @@ impl inventory::Collect for ServerFunction {
         &REGISTRY
     }
 }
-
-/// The set of all registered server function paths.
-pub fn server_fn_paths() -> impl Iterator<Item = (&'static str, Method)> {
-    REGISTERED_SERVER_FUNCTIONS
-        .iter()
-        .map(|item| (item.path(), item.method()))
-}
-
-type LazyServerFnMap = LazyLock<DashMap<(String, Method), ServerFunction>>;
-static REGISTERED_SERVER_FUNCTIONS: LazyServerFnMap = std::sync::LazyLock::new(|| {
-    inventory::iter::<ServerFunction>
-        .into_iter()
-        .map(|obj| ((obj.path().to_string(), obj.method()), obj.clone()))
-        .collect()
-});

packages/fullstack-server/src/ssr.rs

@@ -21,12 +21,11 @@ use http::{request::Parts, HeaderMap, StatusCode};
 use std::{
     collections::HashMap,
     fmt::Write,
-    future::Future,
     iter::Peekable,
     rc::Rc,
     sync::{Arc, RwLock},
 };
-use tokio::task::JoinHandle;
+use tokio_util::task::LocalPoolHandle;
 
 use crate::StreamingMode;
 
@@ -99,6 +98,7 @@ impl SsrRendererPool {
         self: Arc<Self>,
         parts: Parts,
         cfg: &ServeConfig,
+        rt: &LocalPoolHandle,
         virtual_dom_factory: impl FnOnce() -> VirtualDom + Send + Sync + 'static,
     ) -> Result<
         (
@@ -420,7 +420,8 @@ impl SsrRendererPool {
             myself.renderers.write().unwrap().push(renderer);
         };
 
-        let join_handle = Self::spawn_platform(create_render_future);
+        // Spawn the render future onto the local pool
+        let join_handle = rt.spawn_pinned(create_render_future);
 
         // Wait for the initial result which determines the status code
         let (status, headers) = initial_result_rx
@@ -763,32 +764,4 @@ impl SsrRendererPool {
 
         Ok(())
     }
-
-    /// Spawn a task in the background. If wasm is enabled, this will use the single threaded tokio runtime
-    fn spawn_platform<Fut>(f: impl FnOnce() -> Fut + Send + 'static) -> JoinHandle<Fut::Output>
-    where
-        Fut: Future + 'static,
-        Fut::Output: Send + 'static,
-    {
-        #[cfg(not(target_arch = "wasm32"))]
-        {
-            use tokio_util::task::LocalPoolHandle;
-            static TASK_POOL: std::sync::OnceLock<LocalPoolHandle> = std::sync::OnceLock::new();
-
-            let pool = TASK_POOL.get_or_init(|| {
-                LocalPoolHandle::new(
-                    std::thread::available_parallelism()
-                        .map(usize::from)
-                        .unwrap_or(1),
-                )
-            });
-
-            pool.spawn_pinned(f)
-        }
-
-        #[cfg(target_arch = "wasm32")]
-        {
-            tokio::task::spawn_local(f())
-        }
-    }
 }

packages/fullstack/Cargo.toml

@@ -66,7 +66,7 @@ tower-http = { workspace = true, features = ["fs", "limit"], optional = true }
 tower-layer = { version = "0.3.3", optional = true }
 
 # payloads
-postcard = { features = ["alloc"], optional = true, workspace = true, default-features = true }
+postcard = { features = ["alloc", "use-std"], optional = true, workspace = true, default-features = true }
 rmp-serde = { version = "1.3", optional = true }
 async-stream = "0.3.6"
 

packages/fullstack/src/client.rs

@@ -129,10 +129,14 @@ impl ClientRequest {
     }
 
     /// Creates a new reqwest request builder with the method, url, and headers set from this ClientRequest
+    ///
+    /// Using this method attaches `X-Request-Client: dioxus` header to the request.
     pub fn new_reqwest_request(&self) -> reqwest::RequestBuilder {
         let client = GLOBAL_REQUEST_CLIENT.get_or_init(Self::new_reqwest_client);
 
-        let mut req = client.request(self.method.clone(), self.url.clone());
+        let mut req = client
+            .request(self.method.clone(), self.url.clone())
+            .header("X-Request-Client", "dioxus");
 
         for (key, value) in self.headers.iter() {
             req = req.header(key, value);
@@ -141,6 +145,7 @@ impl ClientRequest {
         req
     }
 
+    /// Using this method attaches `X-Request-Client-Dioxus` header to the request.
     #[cfg(feature = "web")]
     pub fn new_gloo_request(&self) -> gloo_net::http::RequestBuilder {
         let mut builder = gloo_net::http::RequestBuilder::new(
@@ -155,6 +160,7 @@ impl ClientRequest {
             )
             .as_str(),
         )
+        .header("X-Request-Client", "dioxus")
         .method(self.method.clone());
 
         for (key, value) in self.headers.iter() {

packages/fullstack/src/encoding.rs

@@ -7,8 +7,13 @@ use serde::{de::DeserializeOwned, Serialize};
 pub trait Encoding {
     fn content_type() -> &'static str;
     fn stream_content_type() -> &'static str;
-    fn to_bytes(data: impl Serialize) -> Option<Bytes>;
+    fn to_bytes(data: impl Serialize) -> Option<Bytes> {
-    fn from_bytes<O: DeserializeOwned>(bytes: Bytes) -> Option<O>;
+        let mut buf = Vec::new();
+        Self::encode(data, &mut buf)?;
+        Some(buf.into())
+    }
+    fn encode(data: impl Serialize, buf: &mut Vec<u8>) -> Option<usize>;
+    fn decode<O: DeserializeOwned>(bytes: Bytes) -> Option<O>;
 }
 
 pub struct JsonEncoding;
@@ -19,11 +24,14 @@ impl Encoding for JsonEncoding {
     fn stream_content_type() -> &'static str {
         "application/stream+json"
     }
-    fn to_bytes(data: impl Serialize) -> Option<Bytes> {
+
-        serde_json::to_vec(&data).ok().map(Into::into)
+    fn encode(data: impl Serialize, mut buf: &mut Vec<u8>) -> Option<usize> {
+        let len = buf.len();
+        serde_json::to_writer(&mut buf, &data).ok()?;
+        Some(buf.len() - len)
     }
 
-    fn from_bytes<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
+    fn decode<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
         serde_json::from_slice(&bytes).ok()
     }
 }
@@ -36,14 +44,15 @@ impl Encoding for CborEncoding {
     fn stream_content_type() -> &'static str {
         "application/stream+cbor"
     }
-    fn to_bytes(data: impl Serialize) -> Option<Bytes> {
+
-        let mut buf = Vec::new();
+    fn decode<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
-        ciborium::into_writer(&data, &mut buf).ok()?;
+        ciborium::de::from_reader(bytes.as_ref()).ok()
-        Some(buf.into())
     }
 
-    fn from_bytes<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
+    fn encode(data: impl Serialize, mut buf: &mut Vec<u8>) -> Option<usize> {
-        ciborium::de::from_reader(bytes.as_ref()).ok()
+        let len = buf.len();
+        ciborium::into_writer(&data, &mut buf).ok()?;
+        Some(buf.len() - len)
     }
 }
 
@@ -57,11 +66,14 @@ impl Encoding for PostcardEncoding {
     fn stream_content_type() -> &'static str {
         "application/stream+postcard"
     }
-    fn to_bytes(data: impl Serialize) -> Option<Bytes> {
+
-        postcard::to_allocvec(&data).ok().map(Into::into)
+    fn encode(data: impl Serialize, mut buf: &mut Vec<u8>) -> Option<usize> {
+        let len = buf.len();
+        postcard::to_io(&data, &mut buf).ok()?;
+        Some(buf.len() - len)
     }
 
-    fn from_bytes<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
+    fn decode<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
         postcard::from_bytes(bytes.as_ref()).ok()
     }
 }
@@ -76,11 +88,13 @@ impl Encoding for MsgPackEncoding {
     fn stream_content_type() -> &'static str {
         "application/stream+msgpack"
     }
-    fn to_bytes(data: impl Serialize) -> Option<Bytes> {
+    fn encode(data: impl Serialize, buf: &mut Vec<u8>) -> Option<usize> {
-        rmp_serde::to_vec(&data).ok().map(Into::into)
+        let len = buf.len();
+        rmp_serde::encode::write(buf, &data).ok()?;
+        Some(buf.len() - len)
     }
 
-    fn from_bytes<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
+    fn decode<O: DeserializeOwned>(bytes: Bytes) -> Option<O> {
         rmp_serde::from_slice(&bytes).ok()
     }
 }

packages/fullstack/src/lazy.rs

@@ -88,6 +88,20 @@ impl<T: Send + Sync + 'static> Lazy<T> {
         }
         Ok(())
     }
+
+    /// Get a reference to the value of the `Lazy` instance. This will block the current thread if the
+    /// value is not yet initialized.
+    pub fn get(&self) -> &T {
+        if self.constructor.is_none() {
+            return self.value.get().expect("Lazy value is not initialized. Make sure to call `initialize` before dereferencing.");
+        };
+
+        if self.value.get().is_none() {
+            self.initialize().expect("Failed to initialize lazy value");
+        }
+
+        self.value.get().unwrap()
+    }
 }
 
 impl<T: Send + Sync + 'static> Default for Lazy<T> {
@@ -100,15 +114,13 @@ impl<T: Send + Sync + 'static> std::ops::Deref for Lazy<T> {
     type Target = T;
 
     fn deref(&self) -> &Self::Target {
-        if self.constructor.is_none() {
+        self.get()
-            return self.value.get().expect("Lazy value is not initialized. Make sure to call `initialize` before dereferencing.");
+    }
-        };
+}
 
-        if self.value.get().is_none() {
+impl<T: std::fmt::Debug + Send + Sync + 'static> std::fmt::Debug for Lazy<T> {
-            self.initialize().expect("Failed to initialize lazy value");
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        }
+        f.debug_struct("Lazy").field("value", self.get()).finish()
-
-        self.value.get().unwrap()
     }
 }
 
@@ -129,10 +141,16 @@ where
     {
         let ptr: F = unsafe { std::mem::zeroed() };
         let fut = ptr();
-        let rt = tokio::runtime::Handle::current();
+        return std::thread::spawn(move || {
-        return std::thread::spawn(move || rt.block_on(fut).map_err(|e| e.into()))
+            tokio::runtime::Builder::new_current_thread()
-            .join()
+                .enable_all()
-            .unwrap();
+                .build()
+                .unwrap()
+                .block_on(fut)
+                .map_err(|e| e.into())
+        })
+        .join()
+        .unwrap();
     }
 
     // todo: technically we can support constructors in wasm with the same tricks inventory uses with `__wasm_call_ctors`

packages/fullstack/src/lib.rs

@@ -107,6 +107,9 @@ pub mod payloads {
     pub mod header;
     pub use header::*;
 
+    pub mod query;
+    pub use query::*;
+
     #[cfg(feature = "ws")]
     pub mod websocket;
     #[cfg(feature = "ws")]

packages/fullstack/src/magic.rs

@@ -42,7 +42,7 @@ use crate::{
 use axum::response::IntoResponse;
 use axum_core::extract::{FromRequest, Request};
 use bytes::Bytes;
-use dioxus_fullstack_core::{DioxusServerState, RequestError};
+use dioxus_fullstack_core::RequestError;
 use http::StatusCode;
 use send_wrapper::SendWrapper;
 use serde::Serialize;
@@ -172,7 +172,7 @@ pub mod req_to {
     impl<T, O, R> EncodeRequest<T, O, R> for &&&&&&&&&ServerFnEncoder<T, O>
     where
         T: 'static,
-        O: FromRequest<DioxusServerState> + IntoRequest<R>,
+        O: IntoRequest<R>,
     {
         type VerifyEncode = EncodeIsVerified;
         fn fetch_client(
@@ -214,6 +214,8 @@ pub mod req_to {
 pub use decode_ok::*;
 mod decode_ok {
 
+    use crate::{CantDecode, DecodeIsVerified};
+
     use super::*;
 
     /// Convert the reqwest response into the desired type, in place.
@@ -222,13 +224,16 @@ mod decode_ok {
     /// This is because FromResponse types are more specialized and can handle things like websockets and files.
     /// DeserializeOwned types are more general and can handle things like JSON responses.
     pub trait RequestDecodeResult<T, R> {
+        type VerifyDecode;
         fn decode_client_response(
             &self,
             res: Result<R, RequestError>,
         ) -> impl Future<Output = Result<Result<T, ServerFnError>, RequestError>> + Send;
+        fn verify_can_deserialize(&self) -> Self::VerifyDecode;
     }
 
     impl<T: FromResponse<R>, E, R> RequestDecodeResult<T, R> for &&&ServerFnDecoder<Result<T, E>> {
+        type VerifyDecode = DecodeIsVerified;
         fn decode_client_response(
             &self,
             res: Result<R, RequestError>,
@@ -240,11 +245,15 @@ mod decode_ok {
                 }
             })
         }
+        fn verify_can_deserialize(&self) -> Self::VerifyDecode {
+            DecodeIsVerified
+        }
     }
 
     impl<T: DeserializeOwned, E> RequestDecodeResult<T, ClientResponse>
         for &&ServerFnDecoder<Result<T, E>>
     {
+        type VerifyDecode = DecodeIsVerified;
         fn decode_client_response(
             &self,
             res: Result<ClientResponse, RequestError>,
@@ -304,6 +313,24 @@ mod decode_ok {
                 }
             })
         }
+        fn verify_can_deserialize(&self) -> Self::VerifyDecode {
+            DecodeIsVerified
+        }
+    }
+
+    impl<T, R, E> RequestDecodeResult<T, R> for &ServerFnDecoder<Result<T, E>> {
+        type VerifyDecode = CantDecode;
+
+        fn decode_client_response(
+            &self,
+            _res: Result<R, RequestError>,
+        ) -> impl Future<Output = Result<Result<T, ServerFnError>, RequestError>> + Send {
+            async move { unimplemented!() }
+        }
+
+        fn verify_can_deserialize(&self) -> Self::VerifyDecode {
+            CantDecode
+        }
     }
 
     pub trait RequestDecodeErr<T, E> {
@@ -460,33 +487,34 @@ pub use req_from::*;
 pub mod req_from {
     use super::*;
     use axum::{extract::FromRequestParts, response::Response};
+    use dioxus_fullstack_core::FullstackContext;
 
     pub trait ExtractRequest<In, Out, H, M = ()> {
         fn extract_axum(
             &self,
-            state: DioxusServerState,
+            state: FullstackContext,
             request: Request,
             map: fn(In) -> Out,
-        ) -> impl Future<Output = Result<(H, Out), Response>> + 'static;
+        ) -> impl Future<Output = Result<(Out, H), Response>> + 'static;
     }
 
     /// When you're extracting entirely on the server, we need to reject client-consuning request bodies
     /// This sits above priority in the combined headers on server / body on client case.
     impl<In, M, H> ExtractRequest<In, (), H, M> for &&&&&&&&&&&ServerFnEncoder<In, ()>
     where
-        H: FromRequest<DioxusServerState, M> + 'static,
+        H: FromRequest<FullstackContext, M> + 'static,
     {
         fn extract_axum(
             &self,
-            state: DioxusServerState,
+            state: FullstackContext,
             request: Request,
             _map: fn(In) -> (),
-        ) -> impl Future<Output = Result<(H, ()), Response>> + 'static {
+        ) -> impl Future<Output = Result<((), H), Response>> + 'static {
             async move {
                 H::from_request(request, &state)
                     .await
                     .map_err(|e| e.into_response())
-                    .map(|out| (out, ()))
+                    .map(|out| ((), out))
             }
         }
     }
@@ -496,14 +524,14 @@ pub mod req_from {
     where
         In: DeserializeOwned + 'static,
         Out: 'static,
-        H: FromRequestParts<DioxusServerState>,
+        H: FromRequestParts<FullstackContext>,
     {
         fn extract_axum(
             &self,
-            _state: DioxusServerState,
+            _state: FullstackContext,
             request: Request,
             map: fn(In) -> Out,
-        ) -> impl Future<Output = Result<(H, Out), Response>> + 'static {
+        ) -> impl Future<Output = Result<(Out, H), Response>> + 'static {
             async move {
                 let (mut parts, body) = request.into_parts();
                 let headers = H::from_request_parts(&mut parts, &_state)
@@ -525,7 +553,7 @@ pub mod req_from {
                     .map_err(|e| ServerFnError::from(e).into_response())
                     .unwrap();
 
-                Ok((headers, out))
+                Ok((out, headers))
             }
         }
     }
@@ -533,15 +561,15 @@ pub mod req_from {
     /// We skip the BodySerialize wrapper and just go for the output type directly.
     impl<In, Out, M, H> ExtractRequest<In, Out, H, M> for &&&&&&&&&ServerFnEncoder<In, Out>
     where
-        Out: FromRequest<DioxusServerState, M> + 'static,
+        Out: FromRequest<FullstackContext, M> + 'static,
-        H: FromRequestParts<DioxusServerState>,
+        H: FromRequestParts<FullstackContext>,
     {
         fn extract_axum(
             &self,
-            state: DioxusServerState,
+            state: FullstackContext,
             request: Request,
             _map: fn(In) -> Out,
-        ) -> impl Future<Output = Result<(H, Out), Response>> + 'static {
+        ) -> impl Future<Output = Result<(Out, H), Response>> + 'static {
             async move {
                 let (mut parts, body) = request.into_parts();
                 let headers = H::from_request_parts(&mut parts, &state)
@@ -554,7 +582,7 @@ pub mod req_from {
                     .await
                     .map_err(|e| e.into_response());
 
-                res.map(|out| (headers, out))
+                res.map(|out| (out, headers))
             }
         }
     }
@@ -616,7 +644,7 @@ mod resp {
 
     #[allow(clippy::result_large_err)]
     pub trait MakeAxumError<E> {
-        fn make_axum_error(self, result: Result<Response, E>) -> Result<Response, Response>;
+        fn make_axum_error(self, result: Result<Response, E>) -> Response;
     }
 
     /// Get the status code from the error type if possible.
@@ -639,9 +667,9 @@ mod resp {
     where
         E: AsStatusCode + From<ServerFnError> + Serialize + DeserializeOwned + Display,
     {
-        fn make_axum_error(self, result: Result<Response, E>) -> Result<Response, Response> {
+        fn make_axum_error(self, result: Result<Response, E>) -> Response {
             match result {
-                Ok(res) => Ok(res),
+                Ok(res) => res,
                 Err(err) => {
                     let status_code = err.as_status_code();
                     let err = ErrorPayload {
@@ -656,19 +684,16 @@ mod resp {
                         HeaderValue::from_static("application/json"),
                     );
                     *resp.status_mut() = status_code;
-                    Err(resp)
+                    resp
                 }
             }
         }
     }
 
     impl<T> MakeAxumError<CapturedError> for &&ServerFnDecoder<Result<T, CapturedError>> {
-        fn make_axum_error(
+        fn make_axum_error(self, result: Result<Response, CapturedError>) -> Response {
-            self,
-            result: Result<Response, CapturedError>,
-        ) -> Result<Response, Response> {
             match result {
-                Ok(res) => Ok(res),
+                Ok(res) => res,
 
                 // Optimize the case where we have sole ownership of the error
                 Err(errr) if errr._strong_count() == 1 => {
@@ -721,19 +746,16 @@ mod resp {
                         HeaderValue::from_static("application/json"),
                     );
                     *resp.status_mut() = StatusCode::INTERNAL_SERVER_ERROR;
-                    Err(resp)
+                    resp
                 }
             }
         }
     }
 
     impl<T> MakeAxumError<anyhow::Error> for &&ServerFnDecoder<Result<T, anyhow::Error>> {
-        fn make_axum_error(
+        fn make_axum_error(self, result: Result<Response, anyhow::Error>) -> Response {
-            self,
-            result: Result<Response, anyhow::Error>,
-        ) -> Result<Response, Response> {
             match result {
-                Ok(res) => Ok(res),
+                Ok(res) => res,
                 Err(errr) => {
                     // The `WithHttpError` trait emits ServerFnErrors so we can downcast them here
                     // to create richer responses.
@@ -775,19 +797,16 @@ mod resp {
                         HeaderValue::from_static("application/json"),
                     );
                     *resp.status_mut() = StatusCode::INTERNAL_SERVER_ERROR;
-                    Err(resp)
+                    resp
                 }
             }
         }
     }
 
     impl<T> MakeAxumError<StatusCode> for &&ServerFnDecoder<Result<T, StatusCode>> {
-        fn make_axum_error(
+        fn make_axum_error(self, result: Result<Response, StatusCode>) -> Response {
-            self,
-            result: Result<Response, StatusCode>,
-        ) -> Result<Response, Response> {
             match result {
-                Ok(resp) => Ok(resp),
+                Ok(resp) => resp,
                 Err(status) => {
                     let body = serde_json::to_string(&ErrorPayload::<()> {
                         code: status.as_u16(),
@@ -801,19 +820,16 @@ mod resp {
                         HeaderValue::from_static("application/json"),
                     );
                     *resp.status_mut() = status;
-                    Err(resp)
+                    resp
                 }
             }
         }
     }
 
     impl<T> MakeAxumError<HttpError> for &ServerFnDecoder<Result<T, HttpError>> {
-        fn make_axum_error(
+        fn make_axum_error(self, result: Result<Response, HttpError>) -> Response {
-            self,
-            result: Result<Response, HttpError>,
-        ) -> Result<Response, Response> {
             match result {
-                Ok(resp) => Ok(resp),
+                Ok(resp) => resp,
                 Err(http_err) => {
                     let body = serde_json::to_string(&ErrorPayload::<()> {
                         code: http_err.status.as_u16(),
@@ -829,7 +845,7 @@ mod resp {
                         HeaderValue::from_static("application/json"),
                     );
                     *resp.status_mut() = http_err.status;
-                    Err(resp)
+                    resp
                 }
             }
         }

packages/fullstack/src/payloads/axum_types.rs

@@ -18,7 +18,7 @@ impl<T: From<String>> FromResponse for Html<T> {
 
 impl<T> IntoRequest for Json<T>
 where
-    T: Serialize + 'static,
+    T: Serialize + 'static + DeserializeOwned,
 {
     fn into_request(self, request: ClientRequest) -> impl Future<Output = ClientResult> + 'static {
         async move { request.send_json(&self.0).await }

packages/fullstack/src/payloads/form.rs

@@ -4,7 +4,7 @@ pub use axum::extract::Form;
 
 impl<T> IntoRequest for Form<T>
 where
-    T: Serialize + 'static,
+    T: Serialize + 'static + DeserializeOwned,
 {
     fn into_request(self, req: ClientRequest) -> impl Future<Output = ClientResult> + 'static {
         async move { req.send_form(&self.0).await }

packages/fullstack/src/payloads/query.rs

@@ -0,0 +1,34 @@
+use std::ops::Deref;
+
+use crate::ServerFnError;
+use axum::extract::FromRequestParts;
+use http::request::Parts;
+use serde::de::DeserializeOwned;
+
+/// An extractor that deserializes query parameters into the given type `T`.
+///
+/// This uses `serde_qs` under the hood to support complex query parameter structures.
+#[derive(Debug, Clone, Copy, Default)]
+pub struct Query<T>(pub T);
+
+impl<T, S> FromRequestParts<S> for Query<T>
+where
+    T: DeserializeOwned,
+    S: Send + Sync,
+{
+    type Rejection = ServerFnError;
+
+    async fn from_request_parts(parts: &mut Parts, _state: &S) -> Result<Self, Self::Rejection> {
+        let inner: T = serde_qs::from_str(parts.uri.query().unwrap_or_default())
+            .map_err(|e| ServerFnError::Deserialization(e.to_string()))?;
+        Ok(Self(inner))
+    }
+}
+
+impl<T> Deref for Query<T> {
+    type Target = T;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}

packages/fullstack/src/payloads/stream.rs

@@ -9,18 +9,83 @@ use axum_core::response::IntoResponse;
 use bytes::Bytes;
 use dioxus_fullstack_core::{HttpError, RequestError};
 use futures::{Stream, StreamExt};
+#[cfg(feature = "server")]
+use futures_channel::mpsc::UnboundedSender;
 use headers::{ContentType, Header};
 use send_wrapper::SendWrapper;
 use serde::{de::DeserializeOwned, Serialize};
 use std::{future::Future, marker::PhantomData, pin::Pin};
 
+/// A stream of text data.
+///
+/// # Chunking
+///
+/// Note that strings sent by the server might not arrive in the same chunking as they were sent.
+///
+/// This is because the underlying transport layer (HTTP/2 or HTTP/3) may choose to split or combine
+/// chunks for efficiency.
+///
+/// If you need to preserve individual string boundaries, consider using `ChunkedTextStream` or another
+/// encoding that preserves chunk boundaries.
 pub type TextStream = Streaming<String>;
+
+/// A stream of binary data.
+///
+/// # Chunking
+///
+/// Note that bytes sent by the server might not arrive in the same chunking as they were sent.
+/// This is because the underlying transport layer (HTTP/2 or HTTP/3) may choose to split or combine
+/// chunks for efficiency.
+///
+/// If you need to preserve individual byte boundaries, consider using `ChunkedByteStream` or another
+/// encoding that preserves chunk boundaries.
 pub type ByteStream = Streaming<Bytes>;
+
+/// A stream of JSON-encoded data.
+///
+/// # Chunking
+///
+/// Normally, it's not possible to stream JSON over HTTP because browsers are free to re-chunk
+/// data as they see fit. However, this implementation manually frames each JSON as if it were an unmasked
+/// websocket message.
+///
+/// If you need to send a stream of JSON data without framing, consider using TextStream instead and
+/// manually handling JSON buffering.
 pub type JsonStream<T> = Streaming<T, JsonEncoding>;
+
+/// A stream of Cbor-encoded data.
+///
+/// # Chunking
+///
+/// Normally, it's not possible to stream JSON over HTTP because browsers are free to re-chunk
+/// data as they see fit. However, this implementation manually frames each item as if it were an unmasked
+/// websocket message.
 pub type CborStream<T> = Streaming<T, CborEncoding>;
 
+/// A stream of manually chunked binary data.
+///
+/// This encoding preserves chunk boundaries by framing each chunk with its length, using Websocket
+/// Framing.
+pub type ChunkedByteStream = Streaming<Bytes, CborEncoding>;
+
+/// A stream of manually chunked text data.
+///
+/// This encoding preserves chunk boundaries by framing each chunk with its length, using Websocket
+/// Framing.
+pub type ChunkedTextStream = Streaming<String, CborEncoding>;
+
 /// A streaming payload.
 ///
+/// ## Frames and Chunking
+///
+/// The streaming payload sends and receives data in discrete chunks or "frames". The size is converted
+/// to hex and sent before each chunk, followed by a CRLF, the chunk data, and another CRLF.
+///
+/// This mimics actual HTTP chunked transfer encoding, but allows us to define our own framing
+/// protocol on top of it.
+///
+/// Arbitrary bytes can be encoded between these frames, but the frames do come with some overhead.
+///
 /// ## Browser Support for Streaming Input
 ///
 /// Browser fetch requests do not currently support full request duplexing, which
@@ -58,9 +123,9 @@ impl<T: 'static + Send, E> Streaming<T, E> {
     pub fn new(value: impl Stream<Item = T> + Send + 'static) -> Self {
         // Box and pin the incoming stream and store as a trait object
         Self {
-            output_stream: Box::pin(futures::stream::empty()) as _,
             input_stream: Box::pin(value.map(|item| Ok(item)))
                 as Pin<Box<dyn Stream<Item = Result<T, StreamingError>> + Send>>,
+            output_stream: Box::pin(futures::stream::empty()) as _,
             encoding: PhantomData,
         }
     }
@@ -69,9 +134,7 @@ impl<T: 'static + Send, E> Streaming<T, E> {
     ///
     /// The callback is provided an `UnboundedSender` that can be used to send items to the stream.
     #[cfg(feature = "server")]
-    pub fn spawn<F>(
+    pub fn spawn<F>(callback: impl FnOnce(UnboundedSender<T>) -> F + Send + 'static) -> Self
-        callback: impl FnOnce(futures_channel::mpsc::UnboundedSender<T>) -> F + Send + 'static,
-    ) -> Self
     where
         F: Future<Output = ()> + 'static,
         T: Send,
@@ -92,6 +155,17 @@ impl<T: 'static + Send, E> Streaming<T, E> {
     pub fn into_inner(self) -> impl Stream<Item = Result<T, StreamingError>> + Send {
         self.input_stream
     }
+
+    /// Creates a streaming payload from an existing stream of bytes.
+    ///
+    /// This uses the internal framing mechanism to decode the stream into items of type `T`.
+    fn from_bytes(stream: impl Stream<Item = Result<T, StreamingError>> + Send + 'static) -> Self {
+        Self {
+            input_stream: Box::pin(stream),
+            output_stream: Box::pin(futures::stream::empty()) as _,
+            encoding: PhantomData,
+        }
+    }
 }
 
 impl<S, U> From<S> for TextStream
@@ -100,11 +174,7 @@ where
     U: Into<String>,
 {
     fn from(value: S) -> Self {
-        Self {
+        Self::new(value.map(|data| data.into()))
-            input_stream: Box::pin(value.map(|data| Ok(data.into()))),
-            output_stream: Box::pin(futures::stream::empty()) as _,
-            encoding: PhantomData,
-        }
     }
 }
 
@@ -129,11 +199,7 @@ where
     E: Encoding,
 {
     fn from(value: S) -> Self {
-        Self {
+        Self::from_bytes(value.map(|data| Ok(data.into())))
-            input_stream: Box::pin(value.map(|data| Ok(data.into()))),
-            output_stream: Box::pin(futures::stream::empty()) as _,
-            encoding: PhantomData,
-        }
     }
 }
 
@@ -158,7 +224,7 @@ impl IntoResponse for Streaming<Bytes> {
 impl<T: DeserializeOwned + Serialize + 'static, E: Encoding> IntoResponse for Streaming<T, E> {
     fn into_response(self) -> axum_core::response::Response {
         let res = self.input_stream.map(|r| match r {
-            Ok(res) => match E::to_bytes(&res) {
+            Ok(res) => match encode_stream_frame::<T, E>(res) {
                 Some(bytes) => Ok(bytes),
                 None => Err(StreamingError::Failed),
             },
@@ -218,7 +284,7 @@ impl<T: DeserializeOwned + Serialize + 'static + Send, E: Encoding> FromResponse
         SendWrapper::new(async move {
             let client_stream = Box::pin(SendWrapper::new(res.bytes_stream().map(
                 |byte| match byte {
-                    Ok(bytes) => match E::from_bytes(bytes) {
+                    Ok(bytes) => match decode_stream_frame::<T, E>(bytes) {
                         Some(res) => Ok(res),
                         None => Err(StreamingError::Decoding),
                     },
@@ -330,7 +396,7 @@ impl<T: DeserializeOwned + Serialize + 'static + Send, E: Encoding, S> FromReque
             Ok(Self {
                 input_stream: Box::pin(futures::stream::empty()),
                 output_stream: Box::pin(stream.map(|byte| match byte {
-                    Ok(bytes) => match E::from_bytes(bytes) {
+                    Ok(bytes) => match decode_stream_frame::<T, E>(bytes) {
                         Some(res) => Ok(res),
                         None => Err(StreamingError::Decoding),
                     },
@@ -380,11 +446,11 @@ impl<T: DeserializeOwned + Serialize + 'static + Send, E: Encoding> IntoRequest
         async move {
             builder
                 .header("Content-Type", E::stream_content_type())?
-                .send_body_stream(
+                .send_body_stream(self.input_stream.map(|r| {
-                    self.input_stream.map(|r| {
+                    r.and_then(|item| {
-                        r.and_then(|item| E::to_bytes(&item).ok_or(StreamingError::Failed))
+                        encode_stream_frame::<T, E>(item).ok_or(StreamingError::Failed)
-                    }),
+                    })
-                )
+                }))
                 .await
         }
     }
@@ -403,3 +469,113 @@ impl<T, E: Encoding> std::fmt::Debug for Streaming<T, E> {
             .finish()
     }
 }
+
+/// This function encodes a single frame of a streaming payload using the specified encoding.
+///
+/// The resulting `Bytes` object is encoded as a websocket frame, so you can send it over a streaming
+/// HTTP response or even a websocket connection.
+///
+/// Note that the packet is not masked, as it is assumed to be sent over a trusted connection.
+pub fn encode_stream_frame<T: Serialize, E: Encoding>(data: T) -> Option<Bytes> {
+    // We use full advantage of `BytesMut` here, writing a maximally full frame and then shrinking it
+    // down to size at the end.
+    //
+    // Also note we don't do any masking over this data since it's not going over an untrusted
+    // network like a websocket would.
+    //
+    // We allocate 10 extra bytes to account for framing overhead, which we'll shrink after
+    let mut bytes = vec![0u8; 10];
+
+    E::encode(data, &mut bytes)?;
+
+    let len = (bytes.len() - 10) as u64;
+    let opcode = 0x82; // FIN + binary opcode
+
+    // Write the header directly into the allocated space.
+    let offset = if len <= 125 {
+        bytes[8] = opcode;
+        bytes[9] = len as u8;
+        8
+    } else if len <= u16::MAX as u64 {
+        bytes[6] = opcode;
+        bytes[7] = 126;
+        let len_bytes = (len as u16).to_be_bytes();
+        bytes[8] = len_bytes[0];
+        bytes[9] = len_bytes[1];
+        6
+    } else {
+        bytes[0] = opcode;
+        bytes[1] = 127;
+        bytes[2..10].copy_from_slice(&len.to_be_bytes());
+        0
+    };
+
+    // Shrink down to the actual used size - is zero copy!
+    Some(Bytes::from(bytes).slice(offset..))
+}
+
+/// Decode a websocket-framed streaming payload produced by [`encode_stream_frame`].
+///
+/// This function returns `None` if the frame is invalid or cannot be decoded.
+///
+/// It cannot handle masked frames, as those are not produced by our encoding function.
+pub fn decode_stream_frame<T, E>(frame: Bytes) -> Option<T>
+where
+    E: Encoding,
+    T: DeserializeOwned,
+{
+    let data = frame.as_ref();
+
+    if data.len() < 2 {
+        return None;
+    }
+
+    let first = data[0];
+    let second = data[1];
+
+    // Require FIN with binary opcode and no RSV bits
+    let fin = first & 0x80 != 0;
+    let opcode = first & 0x0F;
+    let rsv = first & 0x70;
+    if !fin || opcode != 0x02 || rsv != 0 {
+        return None;
+    }
+
+    // Mask bit must be zero for our framing
+    if second & 0x80 != 0 {
+        return None;
+    }
+
+    let mut offset = 2usize;
+    let mut payload_len = (second & 0x7F) as usize;
+
+    if payload_len == 126 {
+        if data.len() < offset + 2 {
+            return None;
+        }
+
+        payload_len = u16::from_be_bytes([data[offset], data[offset + 1]]) as usize;
+        offset += 2;
+    } else if payload_len == 127 {
+        if data.len() < offset + 8 {
+            return None;
+        }
+
+        let mut len_bytes = [0u8; 8];
+        len_bytes.copy_from_slice(&data[offset..offset + 8]);
+        let len_u64 = u64::from_be_bytes(len_bytes);
+
+        if len_u64 > usize::MAX as u64 {
+            return None;
+        }
+
+        payload_len = len_u64 as usize;
+        offset += 8;
+    }
+
+    if data.len() < offset + payload_len {
+        return None;
+    }
+
+    E::decode(frame.slice(offset..offset + payload_len))
+}

packages/fullstack/src/payloads/websocket.rs

@@ -307,11 +307,11 @@ impl<I, O, E> Websocket<I, O, E> {
             match msg {
                 Message::Text(text) => {
                     let e: O =
-                        E::from_bytes(text.into()).ok_or_else(WebsocketError::deserialization)?;
+                        E::decode(text.into()).ok_or_else(WebsocketError::deserialization)?;
                     return Ok(e);
                 }
                 Message::Binary(bytes) => {
-                    let e: O = E::from_bytes(bytes).ok_or_else(WebsocketError::deserialization)?;
+                    let e: O = E::decode(bytes).ok_or_else(WebsocketError::deserialization)?;
                     return Ok(e);
                 }
                 Message::Close { code, reason } => {
@@ -707,13 +707,12 @@ impl<In: DeserializeOwned, Out: Serialize, E: Encoding> TypedWebsocket<In, Out,
             match res {
                 Ok(res) => match res {
                     AxumMessage::Text(utf8_bytes) => {
-                        let e: In = E::from_bytes(utf8_bytes.into())
+                        let e: In = E::decode(utf8_bytes.into())
                             .ok_or_else(WebsocketError::deserialization)?;
                         return Ok(e);
                     }
                     AxumMessage::Binary(bytes) => {
-                        let e: In =
+                        let e: In = E::decode(bytes).ok_or_else(WebsocketError::deserialization)?;
-                            E::from_bytes(bytes).ok_or_else(WebsocketError::deserialization)?;
                         return Ok(e);
                     }
 

packages/fullstack/src/request.rs

@@ -34,7 +34,7 @@ pub trait IntoRequest<R = ClientResponse>: Sized {
 
 impl<A, R> IntoRequest<R> for (A,)
 where
-    A: IntoRequest<R> + 'static,
+    A: IntoRequest<R> + 'static + Send,
 {
     fn into_request(
         self,
@@ -157,9 +157,20 @@ impl<T, E> AssertIsResult for Result<T, E> {}
 #[doc(hidden)]
 pub fn assert_is_result<T: AssertIsResult>() {}
 
-#[diagnostic::on_unimplemented(
+#[diagnostic::on_unimplemented(message = r#"❌ Invalid Arguments to ServerFn ❌
-    message = "The arguments to the server function must either be a single `impl FromRequest + IntoRequest` argument, or multiple `DeserializeOwned` arguments."
+
-)]
+The arguments to the server function must be either:
+
+- a single `impl FromRequest + IntoRequest` argument
+- or multiple `DeserializeOwned` arguments.
+
+Did you forget to implement `IntoRequest` or `Deserialize` for one of the arguments?
+
+`IntoRequest` is a trait that allows payloads to be sent to the server function.
+
+> See https://dioxuslabs.com/learn/0.7/essentials/fullstack/server_functions for more details.
+
+"#)]
 pub trait AssertCanEncode {}
 
 pub struct CantEncode;
@@ -167,5 +178,27 @@ pub struct CantEncode;
 pub struct EncodeIsVerified;
 impl AssertCanEncode for EncodeIsVerified {}
 
+#[diagnostic::on_unimplemented(message = r#"❌ Invalid return type from ServerFn ❌
+
+The arguments to the server function must be either:
+
+- a single `impl FromResponse` return type
+- a single `impl Serialize + DeserializedOwned` return type
+
+Did you forget to implement `FromResponse` or `DeserializeOwned` for one of the arguments?
+
+`FromResponse` is a trait that allows payloads to be decoded from the server function response.
+
+> See https://dioxuslabs.com/learn/0.7/essentials/fullstack/server_functions for more details.
+
+"#)]
+pub trait AssertCanDecode {}
+pub struct CantDecode;
+pub struct DecodeIsVerified;
+impl AssertCanDecode for DecodeIsVerified {}
+
 #[doc(hidden)]
 pub fn assert_can_encode(_t: impl AssertCanEncode) {}
+
+#[doc(hidden)]
+pub fn assert_can_decode(_t: impl AssertCanDecode) {}