AndThenService

apalis_workflow::and_then

Struct AndThenService 

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pub struct AndThenService<Svc, Backend, Cur> { /* private fields */ }
Expand description

The service implementation for the AndThen step.

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impl<Svc, Backend, Cur> AndThenService<Svc, Backend, Cur>

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pub fn new(service: Svc) -> Self

Creates a new AndThenService with the provided service.

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impl<Svc: Debug, Backend: Debug, Cur: Debug> Debug for AndThenService<Svc, Backend, Cur>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<S, B, Cur, Res, CodecErr, SinkError> Service<Task<<B as BackendExt>::Compact, <B as Backend>::Context, <B as Backend>::IdType>> for AndThenService<S, B, Cur>
where S: Service<Task<Cur, B::Context, B::IdType>, Response = GoTo<Res>>, S::Future: Send + 'static, B: BackendExt<Error = SinkError> + Sync + Send + 'static + Clone + Sink<Task<B::Compact, B::Context, B::IdType>, Error = SinkError> + Unpin, B::Codec: Codec<Cur, Compact = B::Compact, Error = CodecErr> + Codec<Res, Compact = B::Compact, Error = CodecErr>, S::Error: Into<BoxDynError> + Send + 'static, CodecErr: Into<BoxDynError> + Send + 'static, Cur: Send + 'static, B::IdType: GenerateId + Send + 'static, SinkError: Error + Send + Sync + 'static, Res: Send + 'static, B::Compact: Send + 'static, B::Context: Send + MetadataExt<WorkflowContext> + 'static,

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type Response = GoTo<StepResult<<B as BackendExt>::Compact, <B as Backend>::IdType>>

Responses given by the service.
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type Error = Box<dyn Error + Sync + Send>

Errors produced by the service.
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type Future = Pin<Box<dyn Future<Output = Result<<AndThenService<S, B, Cur> as Service<Task<<B as BackendExt>::Compact, <B as Backend>::Context, <B as Backend>::IdType>>>::Response, <AndThenService<S, B, Cur> as Service<Task<<B as BackendExt>::Compact, <B as Backend>::Context, <B as Backend>::IdType>>>::Error>> + Send>>

The future response value.
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fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Poll::Ready(Ok(())) when the service is able to process requests. Read more
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fn call( &mut self, request: Task<B::Compact, B::Context, B::IdType>, ) -> Self::Future

Process the request and return the response asynchronously. Read more

Auto Trait Implementations§

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impl<Svc, Backend, Cur> Freeze for AndThenService<Svc, Backend, Cur>
where Svc: Freeze,

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impl<Svc, Backend, Cur> RefUnwindSafe for AndThenService<Svc, Backend, Cur>
where Svc: RefUnwindSafe, Backend: RefUnwindSafe, Cur: RefUnwindSafe,

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impl<Svc, Backend, Cur> Send for AndThenService<Svc, Backend, Cur>
where Svc: Send, Backend: Send, Cur: Send,

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impl<Svc, Backend, Cur> Sync for AndThenService<Svc, Backend, Cur>
where Svc: Sync, Backend: Sync, Cur: Sync,

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impl<Svc, Backend, Cur> Unpin for AndThenService<Svc, Backend, Cur>
where Svc: Unpin, Backend: Unpin, Cur: Unpin,

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impl<Svc, Backend, Cur> UnwindSafe for AndThenService<Svc, Backend, Cur>
where Svc: UnwindSafe, Backend: UnwindSafe, Cur: 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> 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<Args, Ctx, S, B> IntoWorkerService<B, S, Args, Ctx> for S
where S: Service<Task<Args, Ctx, <B as Backend>::IdType>>, B: Backend<Args = Args, Context = Ctx>,

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type Backend = B

The backend type for the worker
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fn into_service(self, backend: B) -> WorkerService<B, S>

Build the service from the backend
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impl<T, Args, Ctx, Svc, B, M> IntoWorkerServiceExt<Args, Ctx, Svc, B, M> for T
where T: IntoWorkerService<B, Svc, Args, Ctx>, B: Backend<Args = Args, Context = Ctx>, Svc: Service<Task<Args, Ctx, <B as Backend>::IdType>>,

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fn build_with( self, builder: WorkerBuilder<Args, Ctx, B, M>, ) -> Worker<Args, Ctx, <T as IntoWorkerService<B, Svc, Args, Ctx>>::Backend, Svc, M>

Consumes the builder and returns a worker
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impl<T, Request> ServiceExt<Request> for T
where T: Service<Request> + ?Sized,

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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.
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fn ready_oneshot(self) -> ReadyOneshot<Self, Request>
where Self: Sized,

Yields the service when it is ready to accept a request.
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fn oneshot(self, req: Request) -> Oneshot<Self, Request>
where Self: Sized,

Consume this Service, calling it with the provided request once it is ready.
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fn call_all<S>(self, reqs: S) -> CallAll<Self, S>
where Self: Sized, S: Stream<Item = Request>,

Process all requests from the given Stream, and produce a Stream of their responses. Read more
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fn and_then<F>(self, f: F) -> AndThen<Self, F>
where Self: Sized, F: Clone,

Executes a new future after this service’s future resolves. This does not alter the behaviour of the poll_ready method. Read more
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fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F>
where Self: Sized, 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
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fn map_err<F, Error>(self, f: F) -> MapErr<Self, F>
where Self: Sized, F: FnOnce(Self::Error) -> Error + Clone,

Maps this service’s error value to a different value. This does not alter the behaviour of the poll_ready method. Read more
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fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F>
where Self: Sized, Error: From<Self::Error>, F: FnOnce(Result<Self::Response, Self::Error>) -> Result<Response, Error> + Clone,

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
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fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F>
where Self: Sized, F: FnMut(NewRequest) -> Request,

Composes a function in front of the service. Read more
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fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F>
where Self: Sized, Error: From<Self::Error>, F: FnOnce(Result<Self::Response, Self::Error>) -> Fut + Clone, Fut: Future<Output = Result<Response, Error>>,

Composes an asynchronous function after this service. Read more
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fn map_future<F, Fut, Response, Error>(self, f: F) -> MapFuture<Self, F>
where Self: Sized, F: FnMut(Self::Future) -> Fut, Error: From<Self::Error>, Fut: Future<Output = Result<Response, Error>>,

Composes a function that transforms futures produced by the service. Read more
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fn boxed(self) -> BoxService<Request, Self::Response, Self::Error>
where Self: Sized + Send + 'static, Self::Future: Send + 'static,

Convert the service into a Service + Send trait object. Read more
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fn boxed_clone(self) -> BoxCloneService<Request, Self::Response, Self::Error>
where Self: Sized + Clone + Send + 'static, Self::Future: Send + 'static,

Convert the service into a Service + Clone + Send trait object. Read more
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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