Struct ntex::service::dev::MapErr

pub struct MapErr<A, F, E> { /* fields omitted */ }

Service for the map_err combinator, changing the type of a service's error.

This is created by the ServiceExt::map_err method.

Trait Implementations

impl<A, F, E> Clone for MapErr<A, F, E> where
    F: Clone,
    A: Clone, 

pub fn clone(&self) -> MapErr<A, F, E>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<A, F, E> Service for MapErr<A, F, E> where
    F: Fn(<A as Service>::Error) -> E + Clone,
    A: Service, 

type Request = <A as Service>::Request

Requests handled by the service.

type Response = <A as Service>::Response

Responses given by the service.

type Error = E

Errors produced by the service.

type Future = MapErrFuture<A, F, E>

The future response value.

pub fn poll_ready(
    &self,
    cx: &mut Context<'_>
) -> Poll<Result<(), <MapErr<A, F, E> as Service>::Error>>

Returns Ready when the service is able to process requests.

pub fn poll_shutdown(&self, cx: &mut Context<'_>, is_error: bool) -> Poll<()>

Shutdown service.

pub fn call(
    &self,
    req: <A as Service>::Request
) -> <MapErr<A, F, E> as Service>::Future

Process the request and return the response asynchronously.

pub fn map<F, R>(self, f: F) -> Map<Self, F, R> where
    F: FnMut(Self::Response) -> R, 

Map this service's output to a different type, returning a new service of the resulting type.

pub fn map_err<F, E>(self, f: F) -> MapErr<Self, F, E> where
    F: Fn(Self::Error) -> E, 

Map this service's error to a different error, returning a new service.