Struct Fallback

pub struct Fallback<S1, S2>
where
    S2: Clone,
{ /* private fields */ }

Provides fallback processing on a second service if the first service returned an error.

Implementations

impl<S1, S2: Clone> Fallback<S1, S2>

pub fn new(svc1: S1, svc2: S2) -> Self

Creates a new Fallback wrapping a pair of services.

Requests are processed on svc1, and retried on svc2 if svc1 errored.

Trait Implementations

impl<S1: Clone, S2: Clone> Clone for Fallback<S1, S2>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S1: Debug, S2> Debug for Fallback<S1, S2>

where S2: Clone + Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<S1, S2, Request> Service<Request> for Fallback<S1, S2>

where S1: Service<Request>, S2: Service<Request, Response = <S1 as Service<Request>>::Response> + Clone, S1::Error: Into<BoxedError>, S2::Error: Into<BoxedError>, Request: Clone,

type Response = <S1 as Service<Request>>::Response

Responses given by the service.

type Error = Box<dyn Error + Sync + Send>

Errors produced by the service.

type Future = ResponseFuture<S1, S2, Request>

The future response value.

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

Returns Poll::Ready(Ok(())) when the service is able to process requests.

fn call(&mut self, request: Request) -> Self::Future

Process the request and return the response asynchronously.