Function warp::filters::path::param2

pub fn param2<T>() -> impl Filter<Extract = (T,), Error = Rejection> + Copy where
    T: FromStr + Send,
    T::Err: Into<Cause>, 

Extract a parameter from a path segment.

This will try to parse a value from the current request path segment, and if successful, the value is returned as the Filter's "extracted" value.

If the value could not be parsed, rejects with a 404 Not Found. In contrast of param method, it reports an error cause in response.

Example

use warp::Filter;

let route = warp::path::param2()
    .map(|id: u32| {
        format!("You asked for /{}", id)
    });