Add wasm32 fullstack example

Cargo.toml

@@ -113,6 +113,7 @@ members = [
     "examples/fullstack-desktop",
     "examples/fullstack-auth",
     "examples/fullstack-websockets",
+    "examples/fullstack-wasm",
 
     # Playwright tests
     "packages/playwright-tests/liveview",
@@ -126,7 +127,6 @@ members = [
     "packages/playwright-tests/nested-suspense",
     "packages/playwright-tests/cli-optimization",
     "packages/playwright-tests/wasm-split-harness",
-    "packages/playwright-tests/default-features-disabled",
 ]
 
 [workspace.package]
@@ -164,7 +164,7 @@ dioxus-cli-config = { path = "packages/cli-config", version = "0.7.0-alpha.1" }
 dioxus-cli-opt = { path = "packages/cli-opt", version = "0.7.0-alpha.1" }
 dioxus-devtools = { path = "packages/devtools", version = "0.7.0-alpha.1" }
 dioxus-devtools-types = { path = "packages/devtools-types", version = "0.7.0-alpha.1" }
-dioxus-server = { path = "packages/server", version = "0.7.0-alpha.1" }
+dioxus-server = { path = "packages/server", version = "0.7.0-alpha.1", default-features = false }
 dioxus-fullstack = { path = "packages/fullstack", version = "0.7.0-alpha.1" }
 dioxus-fullstack-hooks = { path = "packages/fullstack-hooks", version = "0.7.0-alpha.1" }
 dioxus-fullstack-protocol = { path = "packages/fullstack-protocol", version = "0.7.0-alpha.1" }

examples/fullstack-wasm/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "fullstack-wasm"
+edition = "2021"
+version.workspace = true
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = false
+
+[features]
+web = ["dioxus/web"]
+server-wasm = ["dioxus/server-wasm"]
+server = ["dioxus/server"]
+
+[dependencies]
+dioxus = { workspace = true, features = [
+	"fullstack",
+] }
+worker = { version = "0.5.0", features = ["http", "axum"] }
+console_error_panic_hook = { version = "0.1.1" }
+axum = { version = "0.8", default-features = false, features = ["http1", "http2", "json"] }
+tower-service = "0.3.2"
+
+wasm-bindgen = { workspace = true }

examples/fullstack-wasm/README.md

@@ -0,0 +1,5 @@
+# Fullstack WASM
+
+```sh
+dx build --platform server --target wasm32-unknown-unknown
+```

examples/fullstack-wasm/src/lib.rs

@@ -0,0 +1,49 @@
+use dioxus::prelude::*;
+use worker::{Context, Env, HttpRequest, event};
+use wasm_bindgen::prelude::*;
+
+// https://github.com/rustwasm/wasm-bindgen/issues/4446#issuecomment-2729543167
+#[cfg(target_family = "wasm")]
+mod wasm_workaround {
+    extern "C" {
+        pub(super) fn __wasm_call_ctors();
+    }
+}
+
+// https://github.com/rustwasm/wasm-bindgen/issues/4446#issuecomment-2729543167
+#[wasm_bindgen(start)]
+fn start() {
+
+    // fix:
+   // freestyle::block::_::__ctor::h5e2299a836106c67:: Read a negative address value from the stack. Did we run out of memory?
+    #[cfg(target_family = "wasm")]
+    unsafe { wasm_workaround::__wasm_call_ctors()};
+}
+
+#[cfg(not(feature = "web"))]
+#[event(fetch)]
+async fn fetch(
+    req: HttpRequest,
+    _env: Env,
+    _ctx: Context,
+) -> worker::Result<axum::http::Response<axum::body::Body>> {
+    use axum::Router;
+    use tower_service::Service;
+    console_error_panic_hook::set_once();
+    let mut router =
+        Router::new().serve_api_application(ServeConfig::builder().build().unwrap(), app);
+    Ok(router.call(req).await?)
+}
+
+#[server]
+async fn hello_world() -> Result<String, ServerFnError> {
+    Ok("Hello, world!".to_string())
+}
+
+pub fn app() -> Element {
+    let hello_world = use_server_future(hello_world)?;
+    let hello_world = hello_world().unwrap().unwrap();
+    rsx! {
+        "{hello_world}"
+    }
+}

examples/fullstack-wasm/src/main.rs

@@ -0,0 +1,6 @@
+#[cfg(feature = "web")]
+use dioxus::prelude::*;
+
+fn main() {
+    dioxus::launch(fullstack_wasm::app);
+}

examples/fullstack-wasm/wrangler.toml

@@ -0,0 +1,9 @@
+name = "cf-worker"
+main = "build/worker/shim.mjs"
+compatibility_date = "2025-06-08"
+
+[build]
+command = "cargo build --release --target wasm32-unknown-unknown --features web && cargo install -q worker-build && worker-build --features server-wasm"
+# command = "dx build --release --target wasm32-unknown-unknown --platform web --features web && cargo install -q worker-build && worker-build --features server-wasm"
+# without this, wrangler infinitely rebuilds the worker though nothing changed
+watch_dir = ["dummy"]

packages/dioxus/Cargo.toml

@@ -100,6 +100,15 @@ server = [
   "dioxus-liveview?/axum",
   "dioxus-fullstack?/server",
 ]
+server-wasm = [
+  "dep:dioxus-server",
+  "dep:dioxus_server_macro",
+  "dioxus_server_macro/server",
+  "dioxus_server_macro/axum",
+  "ssr",
+  "dioxus-liveview?/axum",
+  "dioxus-fullstack?/server-wasm",
+]
 
 # This feature just disables the no-renderer-enabled warning
 third-party-renderer = []