Struct tower::util::BoxCloneService
source · pub struct BoxCloneService<T, U, E>(/* private fields */);
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§
source§impl<T, U, E> BoxCloneService<T, U, E>
impl<T, U, E> BoxCloneService<T, U, E>
Trait Implementations§
source§impl<T, U, E> Clone for BoxCloneService<T, U, E>
impl<T, U, E> Clone for BoxCloneService<T, U, E>
source§impl<T, U, E> Debug for BoxCloneService<T, U, E>
impl<T, U, E> Debug for BoxCloneService<T, U, E>
Auto Trait Implementations§
impl<T, U, E> Freeze for BoxCloneService<T, U, E>
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§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<M, S, Target, Request> MakeService<Target, Request> for M
impl<M, S, Target, Request> MakeService<Target, Request> for M
source§fn poll_ready(
&mut self,
cx: &mut Context<'_>,
) -> Poll<Result<(), <M as MakeService<Target, Request>>::MakeError>>
fn poll_ready( &mut self, cx: &mut Context<'_>, ) -> Poll<Result<(), <M as MakeService<Target, Request>>::MakeError>>
Returns
Poll::Ready
when the factory is able to create more services. Read moresource§fn make_service(
&mut self,
target: Target,
) -> <M as MakeService<Target, Request>>::Future
fn make_service( &mut self, target: Target, ) -> <M as MakeService<Target, Request>>::Future
Create and return a new service value asynchronously.
source§fn into_service(self) -> IntoService<Self, Request>where
Self: Sized,
fn into_service(self) -> IntoService<Self, Request>where
Self: Sized,
source§fn as_service(&mut self) -> AsService<'_, Self, Request>where
Self: Sized,
fn as_service(&mut self) -> AsService<'_, Self, Request>where
Self: Sized,
source§impl<T, Request> ServiceExt<Request> for T
impl<T, Request> ServiceExt<Request> for T
source§fn ready(&mut self) -> Ready<'_, Self, Request> ⓘwhere
Self: Sized,
fn ready(&mut self) -> Ready<'_, Self, Request> ⓘwhere
Self: Sized,
Yields a mutable reference to the service when it is ready to accept a request.
source§fn ready_oneshot(self) -> ReadyOneshot<Self, Request> ⓘwhere
Self: Sized,
fn ready_oneshot(self) -> ReadyOneshot<Self, Request> ⓘwhere
Self: Sized,
Yields the service when it is ready to accept a request.
source§fn oneshot(self, req: Request) -> Oneshot<Self, Request> ⓘwhere
Self: Sized,
fn oneshot(self, req: Request) -> Oneshot<Self, Request> ⓘwhere
Self: Sized,
Consume this
Service
, calling it with the provided request once it is ready.source§fn and_then<F>(self, f: F) -> AndThen<Self, F>
fn and_then<F>(self, f: F) -> AndThen<Self, F>
Executes a new future after this service’s future resolves. This does
not alter the behaviour of the
poll_ready
method. Read moresource§fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F>
fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F>
Maps this service’s response value to a different value. This does not
alter the behaviour of the
poll_ready
method. Read moresource§fn map_err<F, Error>(self, f: F) -> MapErr<Self, F>
fn map_err<F, Error>(self, f: F) -> MapErr<Self, F>
Maps this service’s error value to a different value. This does not
alter the behaviour of the
poll_ready
method. Read moresource§fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F>
fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F>
Maps this service’s result type (
Result<Self::Response, Self::Error>
)
to a different value, regardless of whether the future succeeds or
fails. Read moresource§fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F>
fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F>
Composes a function in front of the service. Read more
source§fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F>
fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F>
Composes an asynchronous function after this service. Read more
source§fn map_future<F, Fut, Response, Error>(self, f: F) -> MapFuture<Self, F>
fn map_future<F, Fut, Response, Error>(self, f: F) -> MapFuture<Self, F>
Composes a function that transforms futures produced by the service. Read more