Trait tower::filter::AsyncPredicate[−][src]

pub trait AsyncPredicate<Request> {
    type Future: Future<Output = Result<Self::Request, BoxError>>;
    type Request;
    fn check(&mut self, request: Request) -> Self::Future;
}

This is supported on crate feature filter only.

Checks a request asynchronously.

Associated Types

`type Future: Future<Output = Result<Self::Request, BoxError>>`[src]

The future returned by check.

`type Request`[src]

The type of requests returned by check.

This request is forwarded to the inner service if the predicate succeeds.

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Required methods

`fn check(&mut self, request: Request) -> Self::Future`[src]

Check whether the given request should be forwarded.

If the future resolves with Ok, the request is forwarded to the inner service.

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Implementors

`impl<F, T, U, R, E> AsyncPredicate<T> for F where F: FnMut(T) -> U, U: Future<Output = Result<R, E>>, E: Into<BoxError>,` [src]

`type Future = ErrInto<U, BoxError>`

`type Request = R`

`fn check(&mut self, request: T) -> Self::Future`[src]

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Trait tower::filter::AsyncPredicate⎘[−][src]

Associated Types

type Future: Future<Output = Result<Self::Request, BoxError>>[src]

type Request[src]

Required methods

fn check(&mut self, request: Request) -> Self::Future[src]

Implementors

impl<F, T, U, R, E> AsyncPredicate<T> for F where F: FnMut(T) -> U, U: Future<Output = Result<R, E>>, E: Into<BoxError>, [src]

type Future = ErrInto<U, BoxError>

type Request = R

fn check(&mut self, request: T) -> Self::Future[src]

Trait tower::filter::AsyncPredicate[−][src]

`type Future: Future<Output = Result<Self::Request, BoxError>>`[src]

`type Request`[src]

`fn check(&mut self, request: Request) -> Self::Future`[src]

`impl<F, T, U, R, E> AsyncPredicate<T> for F where F: FnMut(T) -> U, U: Future<Output = Result<R, E>>, E: Into<BoxError>,` [src]

`type Future = ErrInto<U, BoxError>`

`type Request = R`

`fn check(&mut self, request: T) -> Self::Future`[src]