refactor: fix error introduced by merge, and reorganize feature (#185)

crates/rmcp/Cargo.toml

@@ -65,22 +65,26 @@ server = ["transport-async-rw", "dep:schemars"]
 macros = ["dep:rmcp-macros", "dep:paste"]
 
 # reqwest http client
-reqwest = ["dep:reqwest"]
+__reqwest = ["dep:reqwest"]
 
+reqwest = ["__reqwest", "reqwest?/rustls-tls"]
+
+reqwest-tls-no-provider = ["__reqwest", "reqwest?/rustls-tls-no-provider"]
+
+axum = ["dep:axum"]
 # SSE client
 client-side-sse = ["dep:sse-stream"]
 
-__transport-sse = ["reqwest", "client-side-sse", "dep:url", "transport-worker"]
+transport-sse-client = ["client-side-sse", "transport-worker"]
 
 transport-worker = ["dep:tokio-stream"]
 
-transport-sse = ["__transport-sse", "reqwest?/rustls-tls"]
-transport-sse-tls-no-provider = ["__transport-sse", "reqwest?/rustls-tls-no-provider"]
 
 # Streamable HTTP client
-__transport-streamable-http-client = ["reqwest", "client-side-sse", "transport-worker", "dep:url"]
-transport-streamable-http-client = ["__transport-streamable-http-client", "reqwest?/rustls-tls"]
-transport-streamable-http-client-tls-no-provider = ["__transport-streamable-http-client", "reqwest?/rustls-tls-no-provider"]
+transport-streamable-http-client = [
+    "client-side-sse",
+    "transport-worker",
+]
 
 
 transport-async-rw = ["tokio/io-util", "tokio-util/codec"]
@@ -88,14 +92,14 @@ transport-io = ["transport-async-rw", "tokio/io-std"]
 transport-child-process = ["transport-async-rw", "tokio/process"]
 transport-sse-server = [
     "transport-async-rw",
-    "dep:axum",
+    "axum",
     "dep:rand",
     "dep:tokio-stream",
     "uuid",
 ]
 transport-streamable-http-server = [
     "transport-streamable-http-server-session",
-    "dep:axum",
+    "axum",
     "uuid",
 ]
 transport-streamable-http-server-session = [
@@ -104,9 +108,7 @@ transport-streamable-http-server-session = [
 ]
 # transport-ws = ["transport-io", "dep:tokio-tungstenite"]
 tower = ["dep:tower-service"]
-__auth = ["dep:oauth2", "dep:reqwest", "dep:url"]
-auth = ["__auth", "reqwest?/rustls-tls"]
-auth-tls-no-provider = ["auth", "reqwest?/rustls-tls-no-provider"]
+auth = ["dep:oauth2", "__reqwest", "dep:url"]
 schemars = ["dep:schemars"]
 
 [dev-dependencies]
@@ -127,12 +129,26 @@ path = "tests/test_tool_macros.rs"
 
 [[test]]
 name = "test_with_python"
-required-features = ["server", "client", "transport-sse-server", "transport-sse", "transport-child-process"]
+required-features = [
+    "server",
+    "client",
+    "transport-sse-server",
+    "transport-sse-client",
+    "transport-child-process",
+]
 path = "tests/test_with_python.rs"
 
 [[test]]
 name = "test_with_js"
-required-features = ["server", "client", "transport-sse-server", "transport-child-process", "transport-streamable-http-server", "transport-streamable-http-client"]
+required-features = [
+    "server",
+    "client",
+    "transport-sse-server",
+    "transport-child-process",
+    "transport-streamable-http-server",
+    "transport-streamable-http-client",
+    "__reqwest",
+]
 path = "tests/test_with_js.rs"
 
 [[test]]
@@ -154,4 +170,3 @@ path = "tests/test_message_protocol.rs"
 name = "test_message_schema"
 required-features = ["server", "client", "schemars"]
 path = "tests/test_message_schema.rs"
-

crates/rmcp/src/transport.rs

@@ -93,11 +93,11 @@ pub mod io;
 #[cfg_attr(docsrs, doc(cfg(feature = "transport-io")))]
 pub use io::stdio;
 
-#[cfg(feature = "__transport-sse")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-sse")))]
+#[cfg(feature = "transport-sse-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-sse-client")))]
 pub mod sse_client;
-#[cfg(feature = "__transport-sse")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-sse")))]
+#[cfg(feature = "transport-sse-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-sse-client")))]
 pub use sse_client::SseClientTransport;
 
 #[cfg(feature = "transport-sse-server")]
@@ -107,15 +107,15 @@ pub mod sse_server;
 #[cfg_attr(docsrs, doc(cfg(feature = "transport-sse-server")))]
 pub use sse_server::SseServer;
 
-#[cfg(feature = "__auth")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__auth")))]
+#[cfg(feature = "auth")]
+#[cfg_attr(docsrs, doc(cfg(feature = "auth")))]
 pub mod auth;
-#[cfg(feature = "__auth")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__auth")))]
+#[cfg(feature = "auth")]
+#[cfg_attr(docsrs, doc(cfg(feature = "auth")))]
 pub use auth::{AuthError, AuthorizationManager, AuthorizationSession, AuthorizedHttpClient};
 
 // #[cfg(feature = "transport-ws")]
-#[cfg_attr(docsrs, doc(cfg(feature = "transport-ws")))]
+// #[cfg_attr(docsrs, doc(cfg(feature = "transport-ws")))]
 // pub mod ws;
 #[cfg(feature = "transport-streamable-http-server-session")]
 #[cfg_attr(docsrs, doc(cfg(feature = "transport-streamable-http-server-session")))]
@@ -124,11 +124,11 @@ pub mod streamable_http_server;
 #[cfg_attr(docsrs, doc(cfg(feature = "transport-streamable-http-server")))]
 pub use streamable_http_server::axum::StreamableHttpServer;
 
-#[cfg(feature = "__transport-streamable-http-client")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-streamable-http-client")))]
+#[cfg(feature = "transport-streamable-http-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-streamable-http-client")))]
 pub mod streamable_http_client;
-#[cfg(feature = "__transport-streamable-http-client")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-streamable-http-client")))]
+#[cfg(feature = "transport-streamable-http-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-streamable-http-client")))]
 pub use streamable_http_client::StreamableHttpClientTransport;
 
 /// Common use codes

crates/rmcp/src/transport/common.rs

@@ -6,7 +6,7 @@ pub mod axum;
 
 pub mod http_header;
 
-#[cfg(feature = "reqwest")]
+#[cfg(feature = "__reqwest")]
 #[cfg_attr(docsrs, doc(cfg(feature = "reqwest")))]
 mod reqwest;
 

crates/rmcp/src/transport/common/auth.rs

@@ -1,7 +1,7 @@
-#[cfg(feature = "__transport-streamable-http-client")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-streamable-http-client")))]
+#[cfg(feature = "transport-streamable-http-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-streamable-http-client")))]
 mod streamable_http_client;
 
-#[cfg(feature = "__transport-sse")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-sse")))]
+#[cfg(feature = "transport-sse-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-sse-client")))]
 mod sse_client;

crates/rmcp/src/transport/common/reqwest.rs

@@ -1,7 +1,7 @@
-#[cfg(feature = "__transport-streamable-http-client")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-streamable-http-client")))]
+#[cfg(feature = "transport-streamable-http-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-streamable-http-client")))]
 mod streamable_http_client;
 
-#[cfg(feature = "__transport-sse")]
-#[cfg_attr(docsrs, doc(cfg(feature = "__transport-sse")))]
+#[cfg(feature = "transport-sse-client")]
+#[cfg_attr(docsrs, doc(cfg(feature = "transport-sse-client")))]
 mod sse_client;

crates/rmcp/src/transport/sse_client.rs

@@ -26,16 +26,10 @@ pub enum SseTransportError<E: std::error::Error + Send + Sync + 'static> {
     Client(E),
     #[error("unexpected end of stream")]
     UnexpectedEndOfStream,
-    #[error("Url error: {0}")]
-    Url(#[from] url::ParseError),
     #[error("Unexpected content type: {0:?}")]
     UnexpectedContentType(Option<HeaderValue>),
-    #[error("Tokio join error: {0}")]
-    TokioJoinError(#[from] tokio::task::JoinError),
-    #[error("Transport terminated")]
-    TransportTerminated,
-    #[cfg(feature = "__auth")]
-    #[cfg_attr(docsrs, doc(cfg(feature = "__auth")))]
+    #[cfg(feature = "auth")]
+    #[cfg_attr(docsrs, doc(cfg(feature = "auth")))]
     #[error("Auth error: {0}")]
     Auth(#[from] crate::transport::auth::AuthError),
 }

crates/rmcp/src/transport/streamable_http_client.rs

@@ -42,8 +42,8 @@ pub enum StreamableHttpError<E: std::error::Error + Send + Sync + 'static> {
     Deserialize(#[from] serde_json::Error),
     #[error("Transport channel closed")]
     TransportChannelClosed,
-    #[cfg(feature = "__auth")]
-    #[cfg_attr(docsrs, doc(cfg(feature = "__auth")))]
+    #[cfg(feature = "auth")]
+    #[cfg_attr(docsrs, doc(cfg(feature = "auth")))]
     #[error("Auth error: {0}")]
     Auth(#[from] crate::transport::auth::AuthError),
 }

docs/OAUTH_SUPPORT.md

@@ -19,7 +19,7 @@ Enable the auth feature in Cargo.toml:
 
 ```toml
 [dependencies]
-rmcp = { version = "0.1", features = ["auth", "transport-sse"] }
+rmcp = { version = "0.1", features = ["auth", "transport-sse-client"] }
 ```
 
 ### 2. Use OAuthState

examples/clients/Cargo.toml

@@ -9,7 +9,8 @@ publish = false
 [dependencies]
 rmcp = { path = "../../crates/rmcp", features = [
     "client",
-    "transport-sse",
+    "transport-sse-client",
+    "reqwest",
     "transport-streamable-http-client",
     "transport-child-process",
     "tower",

examples/rig-integration/Cargo.toml

@@ -17,7 +17,7 @@ tokio = { version = "1", features = ["full"] }
 rmcp = { path = "../../crates/rmcp", features = [
     "client",
     "transport-child-process",
-    "transport-sse",
+    "transport-sse-client",
 ] }
 anyhow = "1.0"
 serde_json = "1"

examples/simple-chat-client/Cargo.toml

@@ -7,15 +7,16 @@ edition = "2021"
 tokio = { version = "1", features = ["full"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-reqwest = { version = "0.11", features = ["json"] }
+reqwest = { version = "0.12", features = ["json"] }
 anyhow = "1.0"
 thiserror = "1.0"
 async-trait = "0.1"
 futures = "0.3"
 toml = "0.8"
-rmcp = { git = "https://github.com/modelcontextprotocol/rust-sdk", features = [
+rmcp = { workspace = true, features = [
     "client",
     "transport-child-process",
-    "transport-sse",
+    "transport-sse-client",
+    "reqwest"
 ], no-default-features = true }
-clap = { version = "4.0", features = ["derive"] }
+clap = { version = "4.0", features = ["derive"] }

examples/simple-chat-client/src/config.rs

@@ -45,7 +45,8 @@ impl McpServerTransportConfig {
     pub async fn start(&self) -> Result<RunningService<RoleClient, ()>> {
         let client = match self {
             McpServerTransportConfig::Sse { url } => {
-                let transport = rmcp::transport::sse::SseTransport::start(url).await?;
+                let transport =
+                    rmcp::transport::sse_client::SseClientTransport::start(url.to_owned()).await?;
                 ().serve(transport).await?
             }
             McpServerTransportConfig::Stdio {