diff --git a/README.md b/README.md
index 6c66022..a79c73c 100644
--- a/README.md
+++ b/README.md
@@ -25,17 +25,21 @@ cargo add haro
 Then, on your main.rs:
 
 ```Rust
-use haro::{Application, Request, Response};
+use haro::{Application, Request, Response, Handler};
 use serde_json::json;
 
 fn main() {
-    let mut app = Application::new("0:8000");
-    app.route("/", |_|Response::str("Hello Haro"));
-    app.route("/hello/:name", hello);
+    let mut app = Application::new("0:8080");
+    let hello_handler = HelloHandler {
+        name: "Haro".to_string(),
+    };
+    app.route("/", |_| Response::str("Hello Haro")); // route by closure
+    app.route("/input/:name", input); // route by function
+    app.route_handler("/hello", hello_handler); //route by `Handler` trait type
     app.run();
 }
 
-fn hello(req: Request) -> Response {
+fn input(req: Request) -> Response {
     let data = json!({
         "method":req.method(),
         "args":req.args,
@@ -44,6 +48,16 @@ fn hello(req: Request) -> Response {
     });
     Response::json(data)
 }
+
+struct HelloHandler {
+    name: String,
+}
+
+impl Handler for HelloHandler {
+    fn call(&self, _: Request) -> Response {
+        Response::str(format!("hello {}", self.name))
+    }
+}
 ```
 
 ```bash
@@ -56,7 +70,7 @@ Hello Haro
 ```
 
 ```bash
-http post "localhost:8080/hello/world?a=b" c=d
+http post "localhost:8080/input/world?a=b" c=d
 HTTP/1.1 200 OK
 content-length: 77
 content-type: application/json
diff --git a/examples/readme/main.rs b/examples/readme/main.rs
new file mode 100644
index 0000000..c7837f4
--- /dev/null
+++ b/examples/readme/main.rs
@@ -0,0 +1,33 @@
+use haro::{Application, Handler, Request, Response};
+use serde_json::json;
+
+fn main() {
+    let mut app = Application::new("0:8080");
+    let hello_handler = HelloHandler {
+        name: "Haro".to_string(),
+    };
+    app.route("/", |_| Response::str("Hello Haro")); // route by closure
+    app.route("/input/:name", input); // route by function
+    app.route_handler("/hello", hello_handler); //route by `Handler` trait type
+    app.run();
+}
+
+fn input(req: Request) -> Response {
+    let data = json!({
+        "method":req.method(),
+        "args":req.args,
+        "params":req.params,
+        "data":req.data,
+    });
+    Response::json(data)
+}
+
+struct HelloHandler {
+    name: String,
+}
+
+impl Handler for HelloHandler {
+    fn call(&self, _: Request) -> Response {
+        Response::str(format!("hello {}", self.name))
+    }
+}