Struct AddExtension
pub struct AddExtension<S, T> { /* private fields */ }Middleware for adding some shareable value to request extensions.
See Passing state from middleware to handlers for more details.
If you need a layer to add an extension to every request, use the Layer implementation of [Extension].
Trait Implementations
impl<ResBody, S, T> Service<Request<ResBody>> for AddExtension<S, T>
where
S: Service<Request<ResBody>>,
T: Clone + Send + Sync + 'static,
type Response = <S as Service<Request<ResBody>>>::Response;type Error = <S as Service<Request<ResBody>>>::Error;type Future = <S as Service<Request<ResBody>>>::Future;fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>fn call(&mut self, req: Request<ResBody>) -> Self::Future
impl<S: Clone, T: Clone> Clone for AddExtension<S, T>
fn clone(&self) -> AddExtension<S, T>
impl<S: Copy, T: Copy> Copy for AddExtension<S, T>
impl<S: Debug, T: Debug> Debug for AddExtension<S, T>
fn fmt(&self, f: &mut Formatter<'_>) -> Result
Auto Trait Implementations
impl<S, T> Freeze for AddExtension<S, T>
where
S: Freeze,
T: Freeze,
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> UnsafeUnpin for AddExtension<S, T>
where
S: UnsafeUnpin,
T: UnsafeUnpin,
impl<S, T> UnwindSafe for AddExtension<S, T>
where
S: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
impl<C, Target> MakeConnection<Target> for AddExtension<S, T>
where
C: Service<Target>,
<C as Service<Target>>::Response: AsyncRead + AsyncWrite,
type Connection = <C as Service<Target>>::Response;type Error = <C as Service<Target>>::Error;type Future = <C as Service<Target>>::Future;fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), <C as MakeConnection<Target>>::Error>>fn make_connection(&mut self, target: Target) -> <C as MakeConnection<Target>>::Future
impl<M, S, Target, Request> MakeService<Target, Request> for AddExtension<S, T>
where
M: Service<Target, Response = S>,
S: Service<Request>,
type Response = <S as Service<Request>>::Response;type Error = <S as Service<Request>>::Error;type Service = S;type MakeError = <M as Service<Target>>::Error;type Future = <M as Service<Target>>::Future;fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), <M as MakeService<Target, Request>>::MakeError>>fn make_service(&mut self, target: Target) -> <M as MakeService<Target, Request>>::Future
impl<S, R> ServiceExt<R> for AddExtension<S, T>
where
S: Service<R>,
fn into_make_service(self) -> IntoMakeService<S>fn into_make_service_with_connect_info<C>(self) -> IntoMakeServiceWithConnectInfo<S, C>
impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for AddExtension<S, T>
where
ST: ?Sized,
DT: ?Sized,
impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for AddExtension<S, T>
where
ST: ?Sized,
DT: ?Sized,
impl<T> Any for AddExtension<S, T>
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for AddExtension<S, T>
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for AddExtension<S, T>
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> CloneToUninit for AddExtension<S, T>
where
T: Clone,
unsafe fn clone_to_uninit(&self, dest: *mut u8)
impl<T> From<T> for AddExtension<S, T>
fn from(t: T) -> TReturns the argument unchanged.
impl<T> FromRef<T> for AddExtension<S, T>
where
T: Clone,
fn from_ref(input: &T) -> T
impl<T> Instrument for AddExtension<S, T>
impl<T> Read<Exclusive, BecauseExclusive> for AddExtension<S, T>
where
T: ?Sized,
impl<T> Same for AddExtension<S, T>
type Output = T;
impl<T> ToOwned for AddExtension<S, T>
where
T: Clone,
type Owned = T;fn to_owned(&self) -> Tfn clone_into(&self, target: &mut T)
impl<T> WithSubscriber for AddExtension<S, T>
impl<T, Request> ServiceExt<Request> for AddExtension<S, T>
where
T: Service<Request> + ?Sized,
impl<T, U> Into<U> for AddExtension<S, T>
where
U: From<T>,
fn into(self) -> UCalls
U::from(self).That is, this conversion is whatever the implementation of
[From]<T> for Uchooses to do.
impl<T, U> TryFrom<U> for AddExtension<S, T>
where
U: Into<T>,
type Error = never;fn try_from(value: U) -> Result<T, never>
impl<T, U> TryInto<U> for AddExtension<S, T>
where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error;fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
impl<V, T> VZip<V> for AddExtension<S, T>
where
V: MultiLane<T>,
fn vzip(self) -> V