Get different file with different parameters in get request

[ohaggmyr]

I am trying to write a get request where the user can enter something like host/id/<image_id> and get the desired image with that id. I read the documentation and tried this:

let get_image = warp::path::param().and_then(|id: String| async move {
    if id != "0" {
        Ok(warp::fs::file(format!("./images/{}.png", id)))
    } else {
        Err(warp::reject::not_found())
    }
});
let routes = get_image;
warp::serve(routes).run(([0, 0, 0, 0], 3030)).await;

This gave me an error:

the trait bound impl warp::filter::FilterClone: warp::reply::Reply is not satisfied
required because of the requirements on the impl of warp::reply::Reply for (impl warp::filter::FilterClone,)rustc(E0277)
server.rs(25, 17): required by this bound in warp::server::serve

Can you help me explain how I can solve this?

thank you so much!

Best regards

Oscar

[jonas-hagen]

I have the same issue. I would like to serve a file under a certain URL, but the path on local storage comes from the database.
Something like this:

use warp::Filter;
use warp::Rejection;

pub async fn get_path(_id: String) -> Result<String, Rejection> {
    // could make call to database
    Ok("./README.md".into())
}

#[tokio::main]
async fn main() {
    pretty_env_logger::init();

    let file = warp::path::param().and_then(get_path).map(|path: String| {
        // now serving the file at path
        // warp::fs::file_reply(...) ????
        // warp::reply::file(...) ????
        // analogous to:
        warp::reply::html(path)
    });

    warp::serve(file).run(([127, 0, 0, 1], 3030)).await;
}

Do I see correctly that warp currently has no built in (public) reply helpers to do this? Even though something like this must already be somewhere since the warp::filters::fs::file filter exists?

[jxs]

Hi, yeah the fs filter can't be used like that, see #171 (comment)