Added webserver and port number specification

src/main.rs

@@ -1,8 +1,19 @@
+use axum::Router;
+use tokio::net::TcpListener;
+use axum::routing::get;
+
 mod argparse;
 mod print_dir;
 
-fn main() {
+#[tokio::main]
+async fn main() {
     let args = argparse::parse_args();
-    println!("{:#?}", args);
-    print_dir::print_interface(&args.interface, &args.directory);
+    print_dir::print_interface(&args.interface, &args.port, &args.directory);
+
+    let app = Router::new().route("/", get(|| async { "Hello world!" }));
+    let listener = TcpListener::bind(format!("0.0.0.0:{}", args.port))
+        .await
+        .unwrap();
+
+    axum::serve(listener, app).await.unwrap();
 }