[−][src]Enum rocket::http::hyper::header::IfRange
If-Range
header, defined in RFC7233
If a client has a partial copy of a representation and wishes to have an up-to-date copy of the entire representation, it could use the Range header field with a conditional GET (using either or both of If-Unmodified-Since and If-Match.) However, if the precondition fails because the representation has been modified, the client would then have to make a second request to obtain the entire current representation.
The If-Range
header field allows a client to "short-circuit" the
second request. Informally, its meaning is as follows: if the
representation is unchanged, send me the part(s) that I am requesting
in Range; otherwise, send me the entire representation.
ABNF
If-Range = entity-tag / HTTP-date
Example values
Sat, 29 Oct 1994 19:43:31 GMT
\"xyzzy\"
Examples
use hyper::header::{Headers, IfRange, EntityTag}; let mut headers = Headers::new(); headers.set(IfRange::EntityTag(EntityTag::new(false, "xyzzy".to_owned())));
// extern crate time; use hyper::header::{Headers, IfRange, HttpDate}; use time::{self, Duration}; let mut headers = Headers::new(); headers.set(IfRange::Date(HttpDate(time::now() - Duration::days(1))));
Variants
EntityTag(EntityTag)
The entity-tag the client has of the resource
Date(HttpDate)
The date when the client retrieved the resource
Trait Implementations
impl From<IfRange> for Header<'static>
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impl PartialEq<IfRange> for IfRange
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impl Display for IfRange
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impl Clone for IfRange
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fn clone(&self) -> IfRange
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fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for IfRange
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impl HeaderFormat for IfRange
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impl Header for IfRange
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Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> HeaderClone for T where
T: Sealed,
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T: Sealed,
impl<T> Typeable for T where
T: Any,
T: Any,
impl<T> IntoCollection for T
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ⓘImportant traits for SmallVec<A>fn into_collection<A>(self) -> SmallVec<A> where
A: Array<Item = T>,
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A: Array<Item = T>,
ⓘImportant traits for SmallVec<A>fn mapped<U, F, A>(self, f: F) -> SmallVec<A> where
A: Array<Item = U>,
F: FnMut(T) -> U,
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A: Array<Item = U>,
F: FnMut(T) -> U,
impl<T, I> AsResult for T where
I: Input,
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I: Input,