Make it easier to provide context to fullstack (#2515)

* pass context providers into server functions

* add an example for FromContext

* clean up DioxusRouterExt

* fix server function context

* fix fullstack desktop example

* fix axum auth example

* fix fullstack context type

* fix context providers path

packages/dioxus/Cargo.toml

@@ -27,6 +27,7 @@ dioxus-liveview = { workspace = true, optional = true }
 dioxus-ssr ={ workspace = true, optional = true }
 
 serde = { version = "1.0.136", optional = true }
+axum = { workspace = true, optional = true }
 
 [target.'cfg(not(any(target_arch = "wasm32", target_os = "ios", target_os = "android")))'.dependencies]
 dioxus-hot-reload = { workspace = true, optional = true }
@@ -50,7 +51,7 @@ web = ["dep:dioxus-web", "dioxus-fullstack?/web", "dioxus-static-site-generation
 ssr = ["dep:dioxus-ssr", "dioxus-router?/ssr", "dioxus-config-macro/ssr"]
 liveview = ["dep:dioxus-liveview", "dioxus-config-macro/liveview", "dioxus-router?/liveview"]
 static-generation = ["dep:dioxus-static-site-generation", "dioxus-config-macro/static-generation"]
-axum = ["dioxus-fullstack?/axum", "dioxus-fullstack?/server", "dioxus-static-site-generation?/server", "ssr", "dioxus-liveview?/axum"]
+axum = ["dioxus-fullstack?/axum", "dioxus-fullstack?/server", "dioxus-static-site-generation?/server", "ssr", "dioxus-liveview?/axum", "dep:axum"]
 
 # This feature just disables the no-renderer-enabled warning
 third-party-renderer = []

packages/dioxus/src/launch.rs

@@ -31,7 +31,7 @@ type ValidContext = SendContext;
 )))]
 type ValidContext = UnsendContext;
 
-type SendContext = dyn Fn() -> Box<dyn Any> + Send + Sync + 'static;
+type SendContext = dyn Fn() -> Box<dyn Any + Send + Sync> + Send + Sync + 'static;
 
 type UnsendContext = dyn Fn() -> Box<dyn Any> + 'static;
 
@@ -137,7 +137,7 @@ impl<Cfg> LaunchBuilder<Cfg, SendContext> {
     /// Inject state into the root component's context that is created on the thread that the app is launched on.
     pub fn with_context_provider(
         mut self,
-        state: impl Fn() -> Box<dyn Any> + Send + Sync + 'static,
+        state: impl Fn() -> Box<dyn Any + Send + Sync> + Send + Sync + 'static,
     ) -> Self {
         self.contexts.push(Box::new(state) as Box<SendContext>);
         self

packages/dioxus/src/lib.rs

@@ -110,6 +110,10 @@ pub mod prelude {
     #[cfg(feature = "router")]
     #[cfg_attr(docsrs, doc(cfg(feature = "router")))]
     pub use dioxus_router::prelude::*;
+
+    #[cfg(feature = "axum")]
+    #[cfg_attr(docsrs, doc(cfg(feature = "axum")))]
+    pub use axum;
 }
 
 #[cfg(feature = "web")]