Skip to main content

HeaderExtractor

zlayer_observability::propagation

Struct HeaderExtractor 

Source 
pub struct HeaderExtractor<'a, T>(pub &'a T);
Expand description

HTTP header extractor for incoming requests (works with http crate HeaderMap)

Tuple Fields§

§0: &'a T

Trait Implementations§

Source§

impl Extractor for HeaderExtractor<'_, HeaderMap>

Source§

fn get(&self, key: &str) -> Option<&str>

Get a value from a key from the underlying data.
Source§

fn keys(&self) -> Vec<&str>

Collect all the keys from the underlying data.
Source§

fn get_all(&self, key: &str) -> Option<Vec<&str>>

Get all values from a key from the underlying data.
Source§

impl Extractor for HeaderExtractor<'_, HashMap<String, String>>

Source§

fn get(&self, key: &str) -> Option<&str>

Get a value from a key from the underlying data.
Source§

fn keys(&self) -> Vec<&str>

Collect all the keys from the underlying data.
Source§

fn get_all(&self, key: &str) -> Option<Vec<&str>>

Get all values from a key from the underlying data.

Auto Trait Implementations§

§

impl<'a, T> Freeze for HeaderExtractor<'a, T>

§

impl<'a, T> RefUnwindSafe for HeaderExtractor<'a, T>
where T: RefUnwindSafe,

§

impl<'a, T> Send for HeaderExtractor<'a, T>
where T: Sync,

§

impl<'a, T> Sync for HeaderExtractor<'a, T>
where T: Sync,

§

impl<'a, T> Unpin for HeaderExtractor<'a, T>

§

impl<'a, T> UnsafeUnpin for HeaderExtractor<'a, T>

§

impl<'a, T> UnwindSafe for HeaderExtractor<'a, T>
where T: RefUnwindSafe,

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T> FutureExt for T

Source§

fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
Source§

fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
Source§

impl<T> Instrument for T

Source§

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

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

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.

Source§

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

Source§

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
Source§

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

fn vzip(self) -> V

Source§

impl<T> WithSubscriber for T

Source§

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
Source§

fn with_current_subscriber(self) -> WithDispatch<Self>

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