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Idempotency

Enum Idempotency 

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pub enum Idempotency {
    Idempotent,
    Unknown,
}
Expand description

Whether a request is known to be safe to re-send.

Set by the call site, which knows the operation’s semantics; consumed by HttpClient implementations when classifying transport failures as retryable. The distinction matters for failures where the request may have reached the server (a timeout, an interrupted response): re-sending is only safe when the operation is known not to be affected by a first attempt the server may already have processed.

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Idempotent

The request is known to be idempotent: a re-send is not affected by whether the server processed an earlier attempt. Transports may mark transient failures retryable even when delivery of the first attempt is unknown.

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Unknown

Not known to be idempotent. A first attempt may have consumed one-shot state (an authorization code, a rotated refresh token), so transports must mark a failure retryable only when the request provably never reached the server.

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impl Clone for Idempotency

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fn clone(&self) -> Idempotency

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for Idempotency

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impl Debug for Idempotency

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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 Eq for Idempotency

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impl PartialEq for Idempotency

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fn eq(&self, other: &Idempotency) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for Idempotency

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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 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> MaybeSend for T
where T: Send,

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impl<T> MaybeSendSync for T
where T: Send + Sync,

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impl<T> MaybeSync for T
where T: Sync,

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.