Struct worker::Headers

pub struct Headers(pub Headers);

Expand description

A Headers representation used in Request and Response objects.

Tuple Fields§

§0: Headers

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 object’s guard is immutable (e.g. for an incoming request)

pub fn entries( &self, ) -> Map<Map<IntoIter, fn(_: Result<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

Converts this type into a shared reference of the (usually inferred) input type.

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 Default for Headers

fn default() -> Self

Returns the “default value” for a type. Read more

impl From<&HeaderMap> for Headers

fn from(map: &HeaderMap) -> Self

Converts to this type from the input type.

impl From<&Headers> for HeaderMap

fn from(headers: &Headers) -> Self

Converts to this type from the input type.

impl From<HeaderMap> for Headers

fn from(map: HeaderMap) -> Self

Converts to this type from the input type.

impl From<Headers> for HeaderMap

fn from(headers: Headers) -> Self

Converts to this type from the input type.

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(_: Result<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 Freeze for Headers

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,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

default unsafe fn clone_to_uninit(&self, dst: *mut T)

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

Performs copy-assignment from self to dst. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Same for T

type Output = T

Should always be Self

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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.

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.

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

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V