Struct worker::Headers

source · [−]

pub struct Headers(pub EdgeHeaders);

Expand description

A Headers representation used in Request and Response objects.

Tuple Fields

0: EdgeHeaders

Implementations

impl Headers

pub fn new() -> Self

Construct a new Headers struct.

pub fn get(&self, name: &str) -> Result<Option<String>>

Returns all the values of a header within a Headers object with a given name. Returns an error if the name is invalid (e.g. contains spaces)

pub fn has(&self, name: &str) -> Result<bool>

Returns a boolean stating whether a Headers object contains a certain header. Returns an error if the name is invalid (e.g. contains spaces)

pub fn append(&mut self, name: &str, value: &str) -> Result<()>

Returns an error if the name is invalid (e.g. contains spaces)

pub fn set(&mut self, name: &str, value: &str) -> Result<()>

Sets a new value for an existing header inside a Headers object, or adds the header if it does not already exist. Returns an error if the name is invalid (e.g. contains spaces)

pub fn delete(&mut self, name: &str) -> Result<()>

Deletes a header from a Headers object. Returns an error if the name is invalid (e.g. contains spaces) or if the JS Headers objects’s guard is immutable (e.g. for an incoming request)

pub fn entries(
&self
) -> Map<Map<IntoIter, fn(_: StdResult<JsValue, JsValue>) -> Array>, fn(_: Array) -> (String, String )>

Returns an iterator allowing to go through all key/value pairs contained in this object.

pub fn keys(&self) -> impl Iterator<Item = String>

Returns an iterator allowing you to go through all keys of the key/value pairs contained in this object.

pub fn values(&self) -> impl Iterator<Item = String>

Returns an iterator allowing you to go through all values of the key/value pairs contained in this object.

Trait Implementations

impl AsRef<JsValue> for Headers

fn as_ref(&self) -> &JsValue

Performs the conversion.

impl Clone for Headers

fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for Headers

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl From<&'_ HeaderMap<HeaderValue>> for Headers

fn from(map: &HeaderMap) -> Self

Performs the conversion.

impl From<&'_ Headers> for HeaderMap

fn from(headers: &Headers) -> Self

Performs the conversion.

impl From<HeaderMap<HeaderValue>> for Headers

fn from(map: HeaderMap) -> Self

Performs the conversion.

impl From<Headers> for HeaderMap

fn from(headers: Headers) -> Self

Performs the conversion.

impl<'a, T: AsRef<str>> FromIterator<&'a (T, T)> for Headers

fn from_iter<U: IntoIterator<Item = &'a (T, T)>>(iter: U) -> Self

Creates a value from an iterator. Read more

impl<T: AsRef<str>> FromIterator<(T, T)> for Headers

fn from_iter<U: IntoIterator<Item = (T, T)>>(iter: U) -> Self

Creates a value from an iterator. Read more

impl IntoIterator for &Headers

type Item = (String, String )

The type of the elements being iterated over.

type IntoIter = Map<Map<IntoIter, fn(_: StdResult<JsValue, JsValue>) -> Array>, fn(_: Array) -> (String, String )>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more

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,

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

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

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.