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#![deny(warnings)]
use std::net::SocketAddr;
use warp::hyper::StatusCode;
use warp::{hyper::Method, reject, Filter, Rejection, Reply};
#[derive(Debug)]
struct MethodError;
impl reject::Reject for MethodError {}
const FOO_METHOD: &'static str = "FOO";
const BAR_METHOD: &'static str = "BAR";
fn method(name: &'static str) -> impl Filter<Extract = (), Error = Rejection> + Clone {
warp::method()
.and_then(move |m: Method| async move {
if m == name {
Ok(())
} else {
Err(reject::custom(MethodError))
}
})
.untuple_one()
}
pub async fn handle_not_found(reject: Rejection) -> Result<impl Reply, Rejection> {
if reject.is_not_found() {
Ok(StatusCode::NOT_FOUND)
} else {
Err(reject)
}
}
pub async fn handle_custom(reject: Rejection) -> Result<impl Reply, Rejection> {
if reject.find::<MethodError>().is_some() {
Ok(StatusCode::METHOD_NOT_ALLOWED)
} else {
Err(reject)
}
}
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
let address: SocketAddr = "[::]:3030".parse()?;
let foo_route = method(FOO_METHOD)
.and(warp::path!("foo"))
.map(|| "Success")
.recover(handle_not_found);
let bar_route = method(BAR_METHOD)
.and(warp::path!("bar"))
.map(|| "Success")
.recover(handle_not_found);
warp::serve(foo_route.or(bar_route).recover(handle_custom))
.run(address)
.await;
Ok(())
}