Struct rocket_http::Header

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pub struct Header<'h> {
    pub name: Uncased<'h>,
    pub value: Cow<'h, str>,
}
Expand description

Simple representation of an HTTP header.

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§name: Uncased<'h>

The name of the header.

§value: Cow<'h, str>

The value of the header.

Implementations§

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impl<'h> Header<'h>

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pub fn new<'a: 'h, 'b: 'h, N, V>(name: N, value: V) -> Header<'h>where N: Into<Cow<'a, str>>, V: Into<Cow<'b, str>>,

Constructs a new header. This method should be used rarely and only for non-standard headers. Instead, prefer to use the Into<Header> implementations of many types, including ContentType and all of the headers in http::hyper::header.

Examples

Create a custom header with name X-Custom-Header and value custom value.

use rocket::http::Header;

let header = Header::new("X-Custom-Header", "custom value");
assert_eq!(header.to_string(), "X-Custom-Header: custom value");

Use a String as a value to do the same.

use rocket::http::Header;

let value = format!("{} value", "custom");
let header = Header::new("X-Custom-Header", value);
assert_eq!(header.to_string(), "X-Custom-Header: custom value");
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pub fn name(&self) -> &UncasedStr

Returns the name of this header.

Example

A case-sensitive equality check:

use rocket::http::Header;

let value = format!("{} value", "custom");
let header = Header::new("X-Custom-Header", value);
assert_eq!(header.name().as_str(), "X-Custom-Header");
assert_ne!(header.name().as_str(), "X-CUSTOM-HEADER");

A case-insensitive equality check:

use rocket::http::Header;

let header = Header::new("X-Custom-Header", "custom value");
assert_eq!(header.name(), "X-Custom-Header");
assert_eq!(header.name(), "X-CUSTOM-HEADER");
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pub fn value(&self) -> &str

Returns the value of this header.

Example

A case-sensitive equality check:

use rocket::http::Header;

let header = Header::new("X-Custom-Header", "custom value");
assert_eq!(header.value(), "custom value");

Trait Implementations§

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impl<'h> Clone for Header<'h>

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fn clone(&self) -> Header<'h>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'h> Debug for Header<'h>

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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 Display for Header<'_>

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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 From<&Cookie<'_>> for Header<'static>

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fn from(cookie: &Cookie<'_>) -> Header<'static>

Converts to this type from the input type.
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impl From<Accept> for Header<'static>

Creates a new Header with name Accept and the value set to the HTTP rendering of this Accept header.

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fn from(val: Accept) -> Self

Converts to this type from the input type.
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impl From<ContentType> for Header<'static>

Creates a new Header with name Content-Type and the value set to the HTTP rendering of this Content-Type.

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fn from(content_type: ContentType) -> Self

Converts to this type from the input type.
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impl From<Cookie<'_>> for Header<'static>

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fn from(cookie: Cookie<'_>) -> Header<'static>

Converts to this type from the input type.
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impl<'h> Hash for Header<'h>

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<'h> PartialEq<Header<'h>> for Header<'h>

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fn eq(&self, other: &Header<'h>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'h> Eq for Header<'h>

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impl<'h> StructuralEq for Header<'h>

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impl<'h> StructuralPartialEq for Header<'h>

Auto Trait Implementations§

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impl<'h> RefUnwindSafe for Header<'h>

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impl<'h> Send for Header<'h>

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impl<'h> Sync for Header<'h>

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impl<'h> Unpin for Header<'h>

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impl<'h> UnwindSafe for Header<'h>

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,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

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> IntoCollection<T> for T

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fn into_collection<A>(self) -> SmallVec<A>where A: Array<Item = T>,

Converts self into a collection.
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fn mapped<U, F, A>(self, f: F) -> SmallVec<A>where F: FnMut(T) -> U, A: Array<Item = U>,

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impl<T> ToOwned for Twhere 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> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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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.
const: unstable · source§

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.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more