Struct worker::Context

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pub struct Context { /* private fields */ }
Expand description

A context bound to a fetch event.

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impl Context

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pub fn new(inner: JsContext) -> Self

Constructs a context from an underlying JavaScript context object.

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pub fn wait_until<F>(&self, future: F)where F: Future<Output = ()> + 'static,

Extends the lifetime of the “fetch” event which this context is bound to, until the given future has been completed. The future is executed before the handler terminates but does not block the response. For example, this is ideal for caching responses or handling logging.

context.wait_until(async move {
    let _ = cache.put(request, response).await;
});
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pub fn pass_through_on_exception(&self)

Prevents a runtime error response when the Worker script throws an unhandled exception. Instead, the script will “fail open”, which will proxy the request to the origin server as though the Worker was never invoked.

Trait Implementations§

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impl AsRef<Context> for Context

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fn as_ref(&self) -> &JsContext

Converts this type into a shared reference of the (usually inferred) input type.
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impl Debug for Context

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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, U> Into<U> for Twhere 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, U> TryFrom<U> for Twhere 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 Twhere 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.