Some changes

src/main.rs

@@ -18,10 +18,21 @@ async fn main() {
         // .route("/users", post(create_user));
 
     // run our app with hyper, listening globally on port 3000
-    let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await.unwrap();
+    let listener = tokio::net::TcpListener::bind(get_full()).await.unwrap();
     axum::serve(listener, app).await.unwrap();
 }
 
+fn get_full() -> String {
+    get_address() + ":" + &get_port()
+}
+fn get_address() -> String {
+    String::from("0.0.0.0")
+}
+
+fn get_port() -> String {
+    String::from("3000")
+}
+
 // basic handler that responds with a static string
 async fn root() -> &'static str {
     "Hello, World!"