Struct actix_service::MapErrNewService

pub struct MapErrNewService<A, F, E, C> where
    A: NewService<C>,
    F: Fn(A::Error) -> E + Clone,  { /* fields omitted */ }

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

This is created by the NewServiceExt::map_err method.

Methods

impl<A, F, E, C> MapErrNewService<A, F, E, C> where
    A: NewService<C>,
    F: Fn(A::Error) -> E + Clone, 

pub fn new(a: A, f: F) -> Self

Create new MapErr new service instance

Trait Implementations

impl<A, F, E, C> NewService<C> for MapErrNewService<A, F, E, C> where
    A: NewService<C>,
    F: Fn(A::Error) -> E + Clone, 

type Request = A::Request

Requests handled by the service.

type Response = A::Response

Responses given by the service

type Error = E

Errors produced by the service

type Service = MapErr<A::Service, F, E>

The Service value created by this factory

type InitError = A::InitError

Errors produced while building a service.

type Future = MapErrNewServiceFuture<A, F, E, C>

The future of the Service instance.

fn new_service(&self, cfg: &C) -> Self::Future

Create and return a new service value asynchronously.

fn apply<T, T1, B, B1>(
    self,
    transform: T1,
    service: B1
) -> AndThenTransform<T, Self, B, Config> where
    Self: Sized,
    T: Transform<B::Service, Request = Self::Response, InitError = Self::InitError>,
    T::Error: From<Self::Error>,
    T1: IntoTransform<T, B::Service>,
    B: NewService<Config, InitError = Self::InitError>,
    B1: IntoNewService<B, Config>, 

Apply transform service to specified service and use it as a next service in chain.

fn apply_fn<B, I, F, Out>(
    self,
    service: I,
    f: F
) -> AndThenApplyNewService<Self, B, F, Out, Config> where
    Self: Sized,
    B: NewService<Config, Error = Self::Error, InitError = Self::InitError>,
    I: IntoNewService<B, Config>,
    F: FnMut(Self::Response, &mut B::Service) -> Out,
    Out: IntoFuture,
    Out::Error: Into<Self::Error>, 

Apply function to specified service and use it as a next service in chain.

fn apply_cfg<F, C, S, U>(
    self,
    service: U,
    f: F
) -> AndThenNewService<Self, ApplyConfig<F, S, Config, C>, Config> where
    Self: Sized,
    F: Fn(&Config) -> C,
    U: IntoNewService<S, C>,
    S: NewService<C, Request = Self::Response, Error = Self::Error, InitError = Self::InitError>, 

Map this service's config type to a different config, and use for nested service

fn and_then<F, B>(self, new_service: F) -> AndThenNewService<Self, B, Config> where
    Self: Sized,
    F: IntoNewService<B, Config>,
    B: NewService<Config, Request = Self::Response, Error = Self::Error, InitError = Self::InitError>, 

Call another service after call to this one has resolved successfully.

fn from_err<E>(self) -> FromErrNewService<Self, E, Config> where
    Self: Sized,
    E: From<Self::Error>, 

NewService that create service to map this service's error and new service's init error to any error implementing From for this servicesError`.

fn then<F, B>(self, new_service: F) -> ThenNewService<Self, B, Config> where
    Self: Sized,
    F: IntoNewService<B, Config>,
    B: NewService<Config, Request = Result<Self::Response, Self::Error>, Error = Self::Error, InitError = Self::InitError>, 

Create NewService to chain on a computation for when a call to the service finished, passing the result of the call to the next service B.

fn map<F, R>(self, f: F) -> MapNewService<Self, F, R, Config> where
    Self: Sized,
    F: FnMut(Self::Response) -> R, 

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) -> MapErrNewService<Self, F, E, Config> where
    Self: Sized,
    F: Fn(Self::Error) -> E + Clone, 

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

fn map_init_err<F, E>(self, f: F) -> MapInitErr<Self, F, E, Config> where
    Self: Sized,
    F: Fn(Self::InitError) -> E, 

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

impl<A, F, E, C> Clone for MapErrNewService<A, F, E, C> where
    A: NewService<C> + Clone,
    F: Fn(A::Error) -> E + Clone, 

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.