Trait viz_core::Handler

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pub trait Handler<Input>: DynClone + Send + Sync + 'static {
    type Output;

    // Required method
    fn call<'life0, 'async_trait>(
        &'life0 self,
        input: Input
    ) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

A simplified asynchronous interface for handling input and output.

Composable request handlers.

Required Associated Types§

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type Output

The returned type after the call operator is used.

Required Methods§

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fn call<'life0, 'async_trait>( &'life0 self, input: Input ) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'async_trait>>where Self: 'async_trait, 'life0: 'async_trait,

Performs the call operation.

Implementors§

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impl Handler<Request<Body>> for BoxHandler

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type Output = Result<Response<Body>, Error>

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impl<F, I, Fut, O> Handler<I> for Fwhere I: Send + 'static, F: Fn(I) -> Fut + ?Sized + Clone + Send + Sync + 'static, Fut: Future<Output = O> + Send,

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type Output = <Fut as Future>::Output

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impl<H, E, O> Handler<Request<Body>> for FnExtHandler<H, E, O>where E: FromRequest + Send + Sync + 'static, E::Error: IntoResponse + Send + Sync, H: FnExt<E, Output = Result<O>>, O: Send + Sync + 'static,

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type Output = <H as FnExt<E>>::Output

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impl<H, F, I, O> Handler<I> for After<H, F>where I: Send + 'static, O: Send, H: Handler<I, Output = Result<O>> + Clone, F: Handler<Result<O>, Output = Result<O>> + Clone,

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type Output = <F as Handler<Result<O, Error>>>::Output

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impl<H, F, I, O> Handler<I> for AndThen<H, F>where I: Send + 'static, O: Send, H: Handler<I, Output = Result<O>> + Clone, F: Handler<O, Output = H::Output> + Clone,

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type Output = <F as Handler<O>>::Output

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impl<H, F, I, O> Handler<I> for Around<H, F>where I: Send + 'static, H: Handler<I, Output = Result<O>> + Clone, F: Handler<Next<I, H>, Output = H::Output> + Clone,

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type Output = <F as Handler<(I, H)>>::Output

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impl<H, F, I, O> Handler<I> for Before<H, F>where I: Send + 'static, F: Handler<I, Output = Result<I>> + Clone, H: Handler<I, Output = Result<O>> + Clone,

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type Output = <H as Handler<I>>::Output

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impl<H, F, I, O> Handler<I> for Map<H, F>where I: Send + 'static, O: Send, H: Handler<I, Output = Result<O>> + Clone, F: Handler<O, Output = O> + Clone,

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type Output = <H as Handler<I>>::Output

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impl<H, F, I, O> Handler<I> for MapErr<H, F>where I: Send + 'static, O: Send, H: Handler<I, Output = Result<O>> + Clone, F: Handler<Error, Output = Error> + Clone,

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type Output = <H as Handler<I>>::Output

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impl<H, F, I, O> Handler<I> for OrElse<H, F>where I: Send + 'static, O: Send, H: Handler<I, Output = Result<O>> + Clone, F: Handler<Error, Output = H::Output> + Clone,

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type Output = <F as Handler<Error>>::Output

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impl<H, F, I, O, R> Handler<I> for CatchUnwind<H, F>where I: Send + 'static, H: Handler<I, Output = Result<O>> + Clone, F: Handler<Box<dyn Any + Send>, Output = R> + Clone, O: IntoResponse + Send + Sync + 'static, R: IntoResponse + Send + Sync + 'static,

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type Output = Result<Response<Body>, Error>

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impl<H, F, I, O, R, E> Handler<I> for CatchError<H, F, E, R>where I: Send + 'static, O: IntoResponse + Send, H: Handler<I, Output = Result<O>> + Clone, F: Handler<E, Output = R> + Clone, R: IntoResponse + Send + Sync + 'static, E: Error + Send + Sync + 'static,

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type Output = Result<Response<Body>, Error>

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impl<H, I, O> Handler<I> for MapInToResponse<H, O>where I: Send + 'static, H: Handler<I, Output = Result<O>> + Clone, O: IntoResponse + Send + Sync + 'static,

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type Output = Result<Response<Body>, Error>

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impl<H, O> Handler<Request<Body>> for CompressionMiddleware<H>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone,

Available on crate feature compression only.
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type Output = Result<Response<Body>, Error>

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impl<H, O> Handler<Request<Body>> for CookieMiddleware<H>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone,

Available on crate feature cookie only.
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type Output = Result<Response<Body>, Error>

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impl<H, O> Handler<Request<Body>> for CorsMiddleware<H>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone,

Available on crate feature cors only.
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type Output = Result<Response<Body>, Error>

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impl<H, O> Handler<Request<Body>> for LimitsMiddleware<H>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone,

Available on crate feature limits only.
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type Output = Result<Response<Body>, Error>

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impl<H, O> Handler<Request<Body>> for MetricsMiddleware<H>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone,

Available on crate features otel-metrics and otel only.
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type Output = Result<Response<Body>, Error>

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impl<H, O, S, G, V> Handler<Request<Body>> for CsrfMiddleware<H, S, G, V>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone, S: Fn() -> Result<Vec<u8>> + Send + Sync + 'static, G: Fn(&[u8], Vec<u8>) -> Vec<u8> + Send + Sync + 'static, V: Fn(Vec<u8>, String) -> bool + Send + Sync + 'static,

Available on crate feature csrf only.
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type Output = Result<Response<Body>, Error>

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impl<H, O, S, G, V> Handler<Request<Body>> for SessionMiddleware<H, S, G, V>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone, S: Storage + 'static, G: Fn() -> String + Send + Sync + 'static, V: Fn(&str) -> bool + Send + Sync + 'static,

Available on crate feature session only.
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type Output = Result<Response<Body>, Error>

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impl<H, O, T> Handler<Request<Body>> for TracingMiddleware<H, T>where T: Tracer + Send + Sync + Clone + 'static, T::Span: Send + Sync + 'static, O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone,

Available on crate features otel-tracing and otel only.
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type Output = Result<Response<Body>, Error>

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impl<H, O, T> Handler<Request<Body>> for State<(H, T)>where O: IntoResponse, H: Handler<Request, Output = Result<O>> + Clone, T: Clone + Send + Sync + 'static,

Available on crate feature state only.
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type Output = Result<Response<Body>, Error>

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impl<L, R, I, O> Handler<I> for Either<L, R>where I: Send + 'static, L: Handler<I, Output = O> + Clone, R: Handler<I, Output = O> + Clone,

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type Output = O