add hello-world-axum benchmark

Author: programatik29

Diff for: benchmark/Cargo.toml

@@ -2,4 +2,5 @@
 
 members = [
     "hello-world/actix-web",
+    "hello-world/axum",
 ]

Diff for: benchmark/hello-world/axum/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "hello-world-axum"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+axum = "0.3"
+tokio = { version = "1", features = ["full"] }

Diff for: benchmark/hello-world/axum/src/main.rs

@@ -0,0 +1,11 @@
+use axum::{routing::get, Router};
+
+#[tokio::main]
+async fn main() {
+    let app = Router::new().route("/", get(|| async { "Hello, World!" }));
+
+    axum::Server::bind(&"127.0.0.1:3000".parse().unwrap())
+        .serve(app.into_make_service())
+        .await
+        .unwrap();
+}