Struct tower::util::BoxCloneService [−][src]
pub struct BoxCloneService<T, U, E>(_);
util
only.Expand description
BoxCloneService
turns a service into a trait object, allowing the
response future type to be dynamic, and allowing the service to be cloned.
This is similar to BoxService
except the resulting
service implements Clone
.
Example
use tower::{Service, ServiceBuilder, BoxError, util::BoxCloneService};
use std::time::Duration;
// This service has a complex type that is hard to name
let service = ServiceBuilder::new()
.map_request(|req| {
println!("received request");
req
})
.map_response(|res| {
println!("response produced");
res
})
.load_shed()
.concurrency_limit(64)
.timeout(Duration::from_secs(10))
.service_fn(|req: Request| async {
Ok::<_, BoxError>(Response::new())
});
// `BoxCloneService` will erase the type so it's nameable
let service: BoxCloneService<Request, Response, BoxError> = BoxCloneService::new(service);
// And we can still clone the service
let cloned_service = service.clone();
Implementations
Create a new BoxCloneService
.
Trait Implementations
Auto Trait Implementations
impl<T, U, E> !RefUnwindSafe for BoxCloneService<T, U, E>
impl<T, U, E> Send for BoxCloneService<T, U, E>
impl<T, U, E> !Sync for BoxCloneService<T, U, E>
impl<T, U, E> Unpin for BoxCloneService<T, U, E>
impl<T, U, E> !UnwindSafe for BoxCloneService<T, U, E>
Blanket Implementations
Mutably borrows from an owned value. Read more
util
only.Yields a mutable reference to the service when it is ready to accept a request.
please use the ServiceExt::ready
method instead
util
only.Yields a mutable reference to the service when it is ready to accept a request.
fn ready_oneshot(self) -> ReadyOneshot<Self, Request>ⓘNotable traits for ReadyOneshot<T, Request>impl<T, Request> Future for ReadyOneshot<T, Request> where
T: Service<Request>, type Output = Result<T, T::Error>;
where
Self: Sized,
fn ready_oneshot(self) -> ReadyOneshot<Self, Request>ⓘNotable traits for ReadyOneshot<T, Request>impl<T, Request> Future for ReadyOneshot<T, Request> where
T: Service<Request>, type Output = Result<T, T::Error>;
where
Self: Sized,
impl<T, Request> Future for ReadyOneshot<T, Request> where
T: Service<Request>, type Output = Result<T, T::Error>;
util
only.Yields the service when it is ready to accept a request.
util
only.Consume this Service
, calling with the providing request once it is ready.
util
only.util
only.Executes a new future after this service’s future resolves. This does
not alter the behaviour of the poll_ready
method. Read more
fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F> where
Self: Sized,
F: FnOnce(Self::Response) -> Response + Clone,
fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F> where
Self: Sized,
F: FnOnce(Self::Response) -> Response + Clone,
util
only.Maps this service’s response value to a different value. This does not
alter the behaviour of the poll_ready
method. Read more
util
only.Maps this service’s error value to a different value. This does not
alter the behaviour of the poll_ready
method. Read more
util
only.Maps this service’s result type (Result<Self::Response, Self::Error>
)
to a different value, regardless of whether the future succeeds or
fails. Read more
fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F> where
Self: Sized,
F: FnMut(NewRequest) -> Request,
fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F> where
Self: Sized,
F: FnMut(NewRequest) -> Request,
util
only.Composes a function in front of the service. Read more
util
and filter
only.fn filter_async<F, NewRequest>(self, filter: F) -> AsyncFilter<Self, F> where
Self: Sized,
F: AsyncPredicate<NewRequest>,
fn filter_async<F, NewRequest>(self, filter: F) -> AsyncFilter<Self, F> where
Self: Sized,
F: AsyncPredicate<NewRequest>,
util
and filter
only.Composes this service with an AsyncFilter
that conditionally accepts or
rejects requests based on an [async predicate]. Read more
util
only.Composes an asynchronous function after this service. Read more
util
only.Composes a function that transforms futures produced by the service. Read more
util
only.pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more