Struct axum::AddExtension
source ·
[−]pub struct AddExtension<S, T> { /* private fields */ }
Expand description
Middleware for adding some shareable value to request extensions.
See Sharing state with handlers for more details.
Implementations
Create a new AddExtensionLayer
.
Trait Implementations
Returns Poll::Ready(Ok(()))
when the service is able to process requests. Read more
Auto Trait Implementations
impl<S, T> RefUnwindSafe for AddExtension<S, T> where
S: RefUnwindSafe,
T: RefUnwindSafe,
impl<S, T> Send for AddExtension<S, T> where
S: Send,
T: Send,
impl<S, T> Sync for AddExtension<S, T> where
S: Sync,
T: Sync,
impl<S, T> Unpin for AddExtension<S, T> where
S: Unpin,
T: Unpin,
impl<S, T> UnwindSafe for AddExtension<S, T> where
S: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<M, S, Target, Request> MakeService<Target, Request> for M where
M: Service<Target, Response = S>,
S: Service<Request>,
impl<M, S, Target, Request> MakeService<Target, Request> for M where
M: Service<Target, Response = S>,
S: Service<Request>,
pub fn poll_ready(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), <M as MakeService<Target, Request>>::MakeError>>
pub 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 more
pub fn make_service(
&mut self,
target: Target
) -> <M as MakeService<Target, Request>>::Future
pub fn make_service(
&mut self,
target: Target
) -> <M as MakeService<Target, Request>>::Future
Create and return a new service value asynchronously.
Consume this MakeService
and convert it into a Service
. Read more
Convert this MakeService
into a Service
without consuming the original MakeService
. Read more
Create a new Policy
that returns Action::Follow
only if self
and other
return
Action::Follow
. Read more
Yields a mutable reference to the service when it is ready to accept a request.
please use the ServiceExt::ready
method instead
Yields a mutable reference to the service when it is ready to accept a request.
Yields the service when it is ready to accept a request.
Consume this Service
, calling with the providing request once it is ready.
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
F: FnOnce(Self::Response) -> Response + Clone,
fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F> where
F: FnOnce(Self::Response) -> Response + Clone,
Maps this service’s response value to a different value. This does not
alter the behaviour of the poll_ready
method. Read more
Maps this service’s error value to a different value. This does not
alter the behaviour of the poll_ready
method. Read more
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
F: FnMut(NewRequest) -> Request,
fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F> where
F: FnMut(NewRequest) -> Request,
Composes a function in front of the service. Read more
fn filter_async<F, NewRequest>(self, filter: F) -> AsyncFilter<Self, F> where
F: AsyncPredicate<NewRequest>,
fn filter_async<F, NewRequest>(self, filter: F) -> AsyncFilter<Self, F> where
F: AsyncPredicate<NewRequest>,
Composes this service with an AsyncFilter
that conditionally accepts or
rejects requests based on an [async predicate]. Read more
Composes an asynchronous function after this service. Read more
Composes a function that transforms futures produced by the service. Read more
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