fix: resolve messagepack codec compilation errors

shared/Cargo.toml

@@ -8,6 +8,8 @@ serde = { version = "1.0", features = ["derive"] }
 utoipa = { version = "5.4.0", features = ["axum_extras"] }
 struct-patch = "0.5"
 rmp-serde = "1.3"
+bytes = "1"
+http = "1"
 
 # Leptos 0.8.7
 leptos = { version = "0.8.7", features = ["nightly"] }
@@ -17,7 +19,6 @@ axum = { version = "0.8", features = ["macros"], optional = true }
 
 # SSR Dependencies (XML-RPC & SCGI)
 tokio = { version = "1", features = ["full"], optional = true }
-bytes = { version = "1", optional = true }
 thiserror = { version = "2", optional = true }
 quick-xml = { version = "0.31", features = ["serde", "serialize"], optional = true }
 
@@ -34,7 +35,6 @@ bcrypt = { version = "0.17", optional = true }
 default = []
 ssr = [
     "dep:tokio",
-    "dep:bytes",
     "dep:thiserror",
     "dep:quick-xml",
     "dep:leptos_axum",

shared/src/codec.rs

@@ -7,8 +7,11 @@ use std::future::Future;
 
 pub struct MessagePack;
 
-impl Encoding for MessagePack {
+impl leptos::server_fn::codec::ContentType for MessagePack {
     const CONTENT_TYPE: &'static str = "application/msgpack";
+}
+
+impl Encoding for MessagePack {
     const METHOD: leptos::server_fn::request::Method = leptos::server_fn::request::Method::POST;
 }
 
@@ -18,46 +21,15 @@ where
     Input: Serialize + Send,
     Output: Send,
 {
-    fn into_req(args: Input, path: &str) -> Result<ClientReq, ServerFnError> {
+    fn into_req(self, args: Input, path: &str) -> Result<ClientReq, ServerFnError> {
         let data = rmp_serde::to_vec(&args)
             .map_err(|e| ServerFnError::Serialization(e.to_string()))?;
 
-        // ClientReq is typically http::Request or similar.
-        // If ClientReq::new(method, path) doesn't exist, check if ClientReq is alias for Request.
-        // In leptos 0.8+, ClientReq::try_new(method, uri, body) is available via trait extension usually or direct impl.
-        // Actually, ClientReq IS http::Request in server/ssr, and gloo_net::Request in hydrate (often).
-        
-        // Let's assume ClientReq::post(path).body(...) or similar builders.
-        // Or if it's http::Request:
-        // http::Request::builder().method("POST").uri(path).header(...).body(data)
-        
-        // But ClientReq type differs between Features.
-        // Let's try to use `ClientReq` assuming it has `try_new` as seen in other codecs (Json).
-        // If that fails, I will use conditional compilation for specific types.
-        
-        // The error "expected a type, found a trait" suggests `ClientReq` handles differently.
-        // Let's look at `Json` codec usage pattern if possible - I can't read source.
-        
-        // Let's try constructing via builder if available.
-        // Or better, let's look at what `ClientReq` is.
-        // In `leptos_server_fn::request`, `ClientReq` is public type alias.
-        
-        // If I use `ClientReq::try_new`, I need it to be available.
-        // Let's try `ClientReq::new` again but verify imports.
-        // Maybe I need to import `http::Method`?
-        
-        // Let's try using `http::Request` explicitly if possible, or just construct it.
-        // If `ClientReq` is `http::Request`, `ClientReq::builder()` works.
-        
-        let req = ClientReq::builder()
-            .method("POST")
-            .uri(path)
-            .header("Content-Type", "application/msgpack")
-            .header("Accept", "application/msgpack")
-            .body(bytes::Bytes::from(data))
-            .map_err(|e| ServerFnError::Request(e.to_string()))?;
-            
-        Ok(req)
+        ClientReq::try_new(
+            leptos::server_fn::request::Method::POST,
+            path,
+            leptos::server_fn::request::Payload::Binary(bytes::Bytes::from(data))
+        )
     }
 }
 
@@ -102,10 +74,10 @@ where
             let data = rmp_serde::to_vec(&res)
             .map_err(|e| ServerFnError::Serialization(e.to_string()))?;
             
-            let mut res = Res::new(200);
-            res.try_set_header("Content-Type", "application/msgpack")?;
-            res.try_set_body(bytes::Bytes::from(data))?;
-            Ok(res)
+            Res::try_from_bytes(
+                bytes::Bytes::from(data), 
+                "application/msgpack"
+            )
         }
     }
 }

shared/src/server_fns/auth.rs

@@ -20,7 +20,7 @@ pub struct SetupStatus {
     pub completed: bool,
 }
 
-#[server(GetSetupStatus, "/api/server_fns/GetSetupStatus", encoding = "MessagePack")]
+#[server(GetSetupStatus, "/api/server_fns/GetSetupStatus", encoding = MessagePack)]
 pub async fn get_setup_status() -> Result<SetupStatus, ServerFnError> {
     use crate::DbContext;
 
@@ -33,7 +33,7 @@ pub async fn get_setup_status() -> Result<SetupStatus, ServerFnError> {
     })
 }
 
-#[server(Setup, "/api/server_fns/Setup", encoding = "MessagePack")]
+#[server(Setup, "/api/server_fns/Setup", encoding = MessagePack)]
 pub async fn setup(username: String, password: String) -> Result<(), ServerFnError> {
     use crate::DbContext;
 
@@ -55,7 +55,7 @@ pub async fn setup(username: String, password: String) -> Result<(), ServerFnErr
     Ok(())
 }
 
-#[server(Login, "/api/server_fns/Login", encoding = "MessagePack")]
+#[server(Login, "/api/server_fns/Login", encoding = MessagePack)]
 pub async fn login(username: String, password: String) -> Result<UserResponse, ServerFnError> {
     use crate::DbContext;
     use leptos_axum::ResponseOptions;
@@ -111,7 +111,7 @@ pub async fn login(username: String, password: String) -> Result<UserResponse, S
     }
 }
 
-#[server(Logout, "/api/server_fns/Logout", encoding = "MessagePack")]
+#[server(Logout, "/api/server_fns/Logout", encoding = MessagePack)]
 pub async fn logout() -> Result<(), ServerFnError> {
     use leptos_axum::ResponseOptions;
     use cookie::{Cookie, SameSite};
@@ -132,7 +132,7 @@ pub async fn logout() -> Result<(), ServerFnError> {
     Ok(())
 }
 
-#[server(GetUser, "/api/server_fns/GetUser", encoding = "MessagePack")]
+#[server(GetUser, "/api/server_fns/GetUser", encoding = MessagePack)]
 pub async fn get_user() -> Result<Option<UserResponse>, ServerFnError> {
     use axum::http::HeaderMap;
     use leptos_axum::extract;