SyncMiddleware

xitca_web::middleware::sync

Struct SyncMiddleware 

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pub struct SyncMiddleware<F>(/* private fields */);
Expand description

experimental type for sync function as middleware.

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impl<F> SyncMiddleware<F>

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pub fn new<C, E>(func: F) -> Self
where F: Fn(&mut Next<E>, WebContext<'_, C>) -> Result<Response<()>, E> + Send + Sync + 'static, C: Clone + Send + 'static, E: Send + 'static,

*. Sync middleware does not have access to request/response body.

construct a new middleware with given sync function. the function must be actively calling Next::call and finish it to drive inner services to completion. panic in sync function middleware would result in a panic at task level and it’s client connection would be terminated immediately.

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impl<F, S, E> Service<Result<S, E>> for SyncMiddleware<F>
where F: Clone,

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type Response = SyncService<F, S>

The Ok part of output future.
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type Error = E

The Err part of output future.
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async fn call(&self, res: Result<S, E>) -> Result<Self::Response, Self::Error>

Auto Trait Implementations§

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impl<F> Freeze for SyncMiddleware<F>
where F: Freeze,

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impl<F> RefUnwindSafe for SyncMiddleware<F>
where F: RefUnwindSafe,

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impl<F> Send for SyncMiddleware<F>
where F: Send,

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impl<F> Sync for SyncMiddleware<F>
where F: Sync,

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impl<F> Unpin for SyncMiddleware<F>
where F: Unpin,

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impl<F> UnwindSafe for SyncMiddleware<F>
where F: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> BorrowState<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<S, Arg> ServiceExt<Arg> for S
where S: Service<Arg>,

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fn enclosed<T>(self, build: T) -> Pipeline<Self, T, BuildEnclosed>
where T: Service<Result<Self::Response, Self::Error>>, Self: Sized,

Enclose Self with given T as Service<<Self as Service<_>>::Response>>. In other word T would take Self’s Service::Response type as it’s generic argument of Service<_> impl.
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fn enclosed_fn<T, Req, O>( self, func: T, ) -> Pipeline<Self, AsyncFn<T>, BuildEnclosed>
where T: AsyncFn(&Self::Response, Req) -> O + Clone, Self: Sized,

Function version of Self::enclosed method.
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fn map<F, Res, ResMap>(self, mapper: F) -> Pipeline<Self, Map<F>, BuildEnclosed>
where F: Fn(Res) -> ResMap + Clone, Self: Sized,

Mutate <<Self::Response as Service<Req>>::Future as Future>::Output type with given closure.
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fn map_err<F, Err, ErrMap>( self, err: F, ) -> Pipeline<Self, MapErr<F>, BuildEnclosed>
where F: Fn(Err) -> ErrMap + Clone, Self: Sized,

Mutate <Self::Response as Service<Req>>::Error type with given closure.
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fn and_then<F>(self, factory: F) -> Pipeline<Self, F, BuildAndThen>
where F: Service<Arg>, Self: Sized,

Chain another service factory who’s service takes Self’s Service::Response output as Service::Request.
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impl<S, Req> ServiceObject<Req> for S
where S: Service<Req>,

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type Response = <S as Service<Req>>::Response

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type Error = <S as Service<Req>>::Error

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fn call<'s>( &'s self, req: Req, ) -> Pin<Box<dyn Future<Output = Result<<S as ServiceObject<Req>>::Response, <S as ServiceObject<Req>>::Error>> + 's>>
where Req: 's,

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more