Struct summer_boot::utils::util::Before

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pub struct Before<F>(pub F);
Expand description

定义对传入请求进行操作的中间件。

用于定义内联中间件的闭包。

Examples

use summer_boot::utils::util;
use summer_boot::Request;
use std::time::Instant;

let mut app = summer_boot::new();
app.with(util::Before(|mut request: Request<()>| async move {
    request.set_ext(Instant::now());
    request
}));

Tuple Fields§

§0: F

Trait Implementations§

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impl<F: Debug> Debug for Before<F>

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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<State, F, Fut> Middleware<State> for Before<F>
where State: Clone + Send + Sync + 'static, F: Fn(Request<State>) -> Fut + Send + Sync + 'static, Fut: Future<Output = Request<State>> + Send + Sync + 'static,

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fn handle<'life0, 'life1, 'async_trait>( &'life0 self, request: Request<State>, next: Next<'life1, State> ) -> Pin<Box<dyn Future<Output = Result> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

异步处理请求并返回响应。
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fn name(&self) -> &str

设置中间件的名称。默认情况下,使用类型名字.

Auto Trait Implementations§

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

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

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

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

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

Blanket Implementations§

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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<T> Same for T

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type Output = T

Should always be Self
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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