Struct websocket::header::IfUnmodifiedSince [−][src]
If-Unmodified-Since
header, defined in
RFC7232
The If-Unmodified-Since
header field makes the request method
conditional on the selected representation’s last modification date
being earlier than or equal to the date provided in the field-value.
This field accomplishes the same purpose as If-Match for cases where
the user agent does not have an entity-tag for the representation.
ABNF
If-Unmodified-Since = HTTP-date
Example values
Sat, 29 Oct 1994 19:43:31 GMT
Example
// extern crate time; use hyper::header::{Headers, IfUnmodifiedSince, HttpDate}; use time::{self, Duration}; let mut headers = Headers::new(); headers.set(IfUnmodifiedSince(HttpDate(time::now() - Duration::days(1))));
Trait Implementations
impl Clone for IfUnmodifiedSince
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impl Debug for IfUnmodifiedSince
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impl Deref for IfUnmodifiedSince
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impl DerefMut for IfUnmodifiedSince
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impl Display for IfUnmodifiedSince
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impl Header for IfUnmodifiedSince
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impl HeaderFormat for IfUnmodifiedSince
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impl PartialEq<IfUnmodifiedSince> for IfUnmodifiedSince
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impl StructuralPartialEq for IfUnmodifiedSince
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Auto Trait Implementations
impl RefUnwindSafe for IfUnmodifiedSince
impl Send for IfUnmodifiedSince
impl Sync for IfUnmodifiedSince
impl Unpin for IfUnmodifiedSince
impl UnwindSafe for IfUnmodifiedSince
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> From<T> for T
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impl<T> HeaderClone for T where
T: Sealed,
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T: Sealed,
impl<T, U> Into<U> 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, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
impl<T> Typeable for T where
T: Any,
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T: Any,