Struct ntex_service::dev::Then

pub struct Then<A, B> { /* private fields */ }

Service for the then combinator, chaining a computation onto the end of another service.

This is created by the Pipeline::then method.

Trait Implementations

impl<A, B> Clone for Then<A, B>where
    A: Clone,
    B: Clone,

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<A, B, R> Service<R> for Then<A, B>where
    A: Service<R>,
    B: Service<Result<A::Response, A::Error>, Error = A::Error>,

type Response = <B as Service<Result<<A as Service<R>>::Response, <A as Service<R>>::Error>>>::Response

Responses given by the service.

type Error = <B as Service<Result<<A as Service<R>>::Response, <A as Service<R>>::Error>>>::Error

Errors produced by the service when polling readiness or executing call.

type Future<'f>
where
    Self: 'f,
    R: 'f = ThenServiceResponse<'f, A, B, R>

The future response value.

fn poll_ready(&self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Ready when the service is able to process requests.

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

Shutdown service.

fn call(&self, req: R) -> Self::Future<'_>

Process the request and return the response asynchronously.

fn map<F, Res>(self, f: F) -> Map<Self, F, Req, Res>where
    Self: Sized,
    F: Fn(Self::Response) -> Res,

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

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

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