[−][src]Struct tide::http::Headers
A collection of HTTP Headers.
Headers are never manually constructed, but are part of Request
,
Response
, and Trailers
. Each of these types implements AsRef<Headers>
and AsMut<Headers>
so functions that want to modify headers can be generic
over either of these traits.
Examples
use http_types::{Response, StatusCode}; let mut res = Response::new(StatusCode::Ok); res.insert_header("hello", "foo0"); assert_eq!(res["hello"], "foo0");
Implementations
impl Headers
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pub fn insert(
&mut self,
name: impl Into<HeaderName>,
values: impl ToHeaderValues
) -> Option<HeaderValues>
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&mut self,
name: impl Into<HeaderName>,
values: impl ToHeaderValues
) -> Option<HeaderValues>
Insert a header into the headers.
Not that this will replace all header values for a given header name.
If you wish to add header values for a header name that already exists
use Headers::append
pub fn append(
&mut self,
name: impl Into<HeaderName>,
values: impl ToHeaderValues
)
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&mut self,
name: impl Into<HeaderName>,
values: impl ToHeaderValues
)
Append a header to the headers.
Unlike insert
this function will not override the contents of a header, but insert a
header if there aren't any. Or else append to the existing list of headers.
pub fn get(&self, name: impl Into<HeaderName>) -> Option<&HeaderValues>
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Get a reference to a header.
pub fn get_mut(
&mut self,
name: impl Into<HeaderName>
) -> Option<&mut HeaderValues>
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&mut self,
name: impl Into<HeaderName>
) -> Option<&mut HeaderValues>
Get a mutable reference to a header.
pub fn remove(&mut self, name: impl Into<HeaderName>) -> Option<HeaderValues>
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Remove a header.
pub fn iter(&self) -> Iter
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An iterator visiting all header pairs in arbitrary order.
pub fn iter_mut(&mut self) -> IterMut
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An iterator visiting all header pairs in arbitrary order, with mutable references to the values.
pub fn names(&self) -> Names
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An iterator visiting all header names in arbitrary order.
pub fn values(&self) -> Values
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An iterator visiting all header values in arbitrary order.
Trait Implementations
impl AsMut<Headers> for Request
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impl AsMut<Headers> for Response
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impl<State> AsMut<Headers> for Request<State>
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impl AsMut<Headers> for Response
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impl AsRef<Headers> for Request
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impl AsRef<Headers> for Response
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impl<State> AsRef<Headers> for Request<State>
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impl AsRef<Headers> for Response
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impl Clone for Headers
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impl Debug for Headers
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impl<'_> Index<&'_ str> for Headers
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type Output = HeaderValues
The returned type after indexing.
fn index(&self, name: &str) -> &HeaderValues
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Returns a reference to the value corresponding to the supplied name.
Panics
Panics if the name is not present in Headers
.
impl Index<HeaderName> for Headers
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type Output = HeaderValues
The returned type after indexing.
fn index(&self, name: HeaderName) -> &HeaderValues
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Returns a reference to the value corresponding to the supplied name.
Panics
Panics if the name is not present in Headers
.
impl<'a> IntoIterator for &'a Headers
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type Item = (&'a HeaderName, &'a HeaderValues)
The type of the elements being iterated over.
type IntoIter = Iter<'a>
Which kind of iterator are we turning this into?
fn into_iter(self) -> <&'a Headers as IntoIterator>::IntoIter
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impl<'a> IntoIterator for &'a mut Headers
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type Item = (&'a HeaderName, &'a mut HeaderValues)
The type of the elements being iterated over.
type IntoIter = IterMut<'a>
Which kind of iterator are we turning this into?
fn into_iter(self) -> <&'a mut Headers as IntoIterator>::IntoIter
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impl IntoIterator for Headers
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type Item = (HeaderName, HeaderValues)
The type of the elements being iterated over.
type IntoIter = IntoIter
Which kind of iterator are we turning this into?
fn into_iter(self) -> <Headers as IntoIterator>::IntoIter
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Returns a iterator of references over the remaining items.
Auto Trait Implementations
impl RefUnwindSafe for Headers
impl Send for Headers
impl Sync for Headers
impl Unpin for Headers
impl UnwindSafe for Headers
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,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<I> IntoIterator for I where
I: Iterator,
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I: Iterator,
type Item = <I as Iterator>::Item
The type of the elements being iterated over.
type IntoIter = I
Which kind of iterator are we turning this into?
fn into_iter(self) -> I
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impl<T> Sealed<T> for T where
T: ?Sized,
T: ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> 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, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,