diff --git a/crates/craft-macros/examples/add.rs b/crates/craft-macros/examples/add.rs
index bde625735..2fc103959 100644
--- a/crates/craft-macros/examples/add.rs
+++ b/crates/craft-macros/examples/add.rs
@@ -7,11 +7,11 @@ use std::sync::Arc;
 
 #[tokio::main]
 async fn main() {
-    let service = Arc::new(Service::new(1));
+    let opts = Arc::new(Opts::new(1));
     let router = Router::new()
-        .push(Router::with_path("add1").get(service.add1()))
-        .push(Router::with_path("add2").get(service.add2()))
-        .push(Router::with_path("add3").get(Service::add3()));
+        .push(Router::with_path("add1").get(opts.add1()))
+        .push(Router::with_path("add2").get(opts.add2()))
+        .push(Router::with_path("add3").get(Opts::add3()));
     let doc = OpenApi::new("Example API", "0.0.1").merge_router(&router);
     let router = router
         .push(doc.into_router("/api-doc/openapi.json"))
@@ -21,12 +21,12 @@ async fn main() {
 }
 
 #[derive(Clone)]
-pub struct Service {
+pub struct Opts {
     state: i64,
 }
 
 #[craft]
-impl Service {
+impl Opts {
     fn new(state: i64) -> Self {
         Self { state }
     }
diff --git a/crates/craft/examples/add.rs b/crates/craft/examples/add.rs
index d3d647562..f8bb5fac1 100644
--- a/crates/craft/examples/add.rs
+++ b/crates/craft/examples/add.rs
@@ -7,11 +7,11 @@ use std::sync::Arc;
 
 #[tokio::main]
 async fn main() {
-    let service = Arc::new(Service::new(1));
+    let opts = Arc::new(Opts::new(1));
     let router = Router::new()
-        .push(Router::with_path("add1").get(service.add1()))
-        .push(Router::with_path("add2").get(service.add2()))
-        .push(Router::with_path("add3").get(Service::add3()));
+        .push(Router::with_path("add1").get(opts.add1()))
+        .push(Router::with_path("add2").get(opts.add2()))
+        .push(Router::with_path("add3").get(Opts::add3()));
     let doc = OpenApi::new("Example API", "0.0.1").merge_router(&router);
     let router = router
         .push(doc.into_router("/api-doc/openapi.json"))
@@ -21,12 +21,12 @@ async fn main() {
 }
 
 #[derive(Clone)]
-pub struct Service {
+pub struct Opts {
     state: i64,
 }
 
 #[craft]
-impl Service {
+impl Opts {
     fn new(state: i64) -> Self {
         Self { state }
     }
diff --git a/examples/craft/Cargo.toml b/examples/craft/Cargo.toml
new file mode 100644
index 000000000..16be23636
--- /dev/null
+++ b/examples/craft/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "example-craft"
+version.workspace = true
+edition.workspace = true
+publish.workspace = true
+
+[dependencies]
+salvo = { workspace = true, features = ["craft", "oapi"] }
+tokio = { workspace = true, features = ["macros"] }
+tracing.workspace = true
+tracing-subscriber.workspace = true
diff --git a/examples/craft/src/main.rs b/examples/craft/src/main.rs
new file mode 100644
index 000000000..b04e606d4
--- /dev/null
+++ b/examples/craft/src/main.rs
@@ -0,0 +1,52 @@
+use salvo::oapi::extract::*;
+use salvo::prelude::*;
+use std::sync::Arc;
+
+#[tokio::main]
+async fn main() {
+    let opts = Arc::new(Opts::new(1));
+    let router = Router::new()
+        .push(Router::with_path("add1").get(opts.add1()))
+        .push(Router::with_path("add2").get(opts.add2()))
+        .push(Router::with_path("add3").get(Opts::add3()));
+    let doc = OpenApi::new("Example API", "0.0.1").merge_router(&router);
+    let router = router
+        .push(doc.into_router("/api-doc/openapi.json"))
+        .push(SwaggerUi::new("/api-doc/openapi.json").into_router("swagger-ui"));
+    let acceptor = TcpListener::new("127.0.0.1:5800").bind().await;
+    Server::new(acceptor).serve(router).await;
+}
+
+#[derive(Clone)]
+pub struct Opts {
+    state: i64,
+}
+
+#[craft]
+impl Opts {
+    fn new(state: i64) -> Self {
+        Self { state }
+    }
+    /// doc line 1
+    /// doc line 2
+    #[craft(handler)]
+    fn add1(&self, left: QueryParam<i64, true>, right: QueryParam<i64, true>) -> String {
+        (self.state + *left + *right).to_string()
+    }
+    /// doc line 3
+    /// doc line 4
+    #[craft(endpoint)]
+    pub(crate) fn add2(
+        self: ::std::sync::Arc<Self>,
+        left: QueryParam<i64, true>,
+        right: QueryParam<i64, true>,
+    ) -> String {
+        (self.state + *left + *right).to_string()
+    }
+    /// doc line 5
+    /// doc line 6
+    #[craft(endpoint(responses((status_code = 400, description = "Wrong request parameters."))))]
+    pub fn add3(left: QueryParam<i64, true>, right: QueryParam<i64, true>) -> String {
+        (*left + *right).to_string()
+    }
+}