1 #![deny(warnings)]
2 use warp::{http::StatusCode, Filter};
3 
dyn_reply(word: String) -> Result<Box<dyn warp::Reply>, warp::Rejection>4 async fn dyn_reply(word: String) -> Result<Box<dyn warp::Reply>, warp::Rejection> {
5     if &word == "hello" {
6         Ok(Box::new("world"))
7     } else {
8         Ok(Box::new(StatusCode::BAD_REQUEST))
9     }
10 }
11 
12 #[tokio::main]
main()13 async fn main() {
14     let routes = warp::path::param().and_then(dyn_reply);
15 
16     warp::serve(routes).run(([127, 0, 0, 1], 3030)).await;
17 }
18