pub fn any() -> impl Filter<Extract = (), Error = Infallible> + Copy
Expand description
A Filter
that matches any route.
This can be a useful building block to build new filters from,
since Filter
is otherwise a sealed trait.
§Example
use warp::Filter;
let route = warp::any()
.map(|| {
"I always return this string!"
});
This could allow creating a single impl Filter
returning a specific
reply, that can then be used as the end of several different filter
chains.
Another use case is turning some clone-able resource into a Filter
,
thus allowing to easily and
it together with others.
use std::sync::Arc;
use warp::Filter;
let state = Arc::new(vec![33, 41]);
let with_state = warp::any().map(move || state.clone());
// Now we could `and` with any other filter:
let route = warp::path::param()
.and(with_state)
.map(|param_id: u32, db: Arc<Vec<u32>>| {
db.contains(¶m_id)
});