Struct poem::web::TypedHeader
source[−]pub struct TypedHeader<T>(pub T);
Expand description
An extractor that extracts a typed header value.
Errors
Example
use poem::{
get, handler,
http::{header, StatusCode},
web::{headers::Host, TypedHeader},
Endpoint, Request, Route,
};
#[handler]
fn index(TypedHeader(host): TypedHeader<Host>) -> String {
host.hostname().to_string()
}
let app = Route::new().at("/", get(index));
let resp = app
.call(
Request::builder()
.header(header::HOST, "example.com")
.finish(),
)
.await
.unwrap();
assert_eq!(resp.status(), StatusCode::OK);
assert_eq!(resp.into_body().into_string().await.unwrap(), "example.com");
Tuple Fields
0: T
Trait Implementations
fn from_request<'life0, 'async_trait>(
req: &'a Request,
_body: &'life0 mut RequestBody
) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>> where
'a: 'async_trait,
'life0: 'async_trait,
Self: 'async_trait,
fn from_request<'life0, 'async_trait>(
req: &'a Request,
_body: &'life0 mut RequestBody
) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>> where
'a: 'async_trait,
'life0: 'async_trait,
Self: 'async_trait,
Extract from request head and body.
Auto Trait Implementations
impl<T> RefUnwindSafe for TypedHeader<T> where
T: RefUnwindSafe,
impl<T> Send for TypedHeader<T> where
T: Send,
impl<T> Sync for TypedHeader<T> where
T: Sync,
impl<T> Unpin for TypedHeader<T> where
T: Unpin,
impl<T> UnwindSafe for TypedHeader<T> where
T: UnwindSafe,
Blanket Implementations
impl<T, A, P> Access<T> for P where
A: Access<T>,
P: Deref<Target = A>,
impl<T, A, P> Access<T> for P where
A: Access<T>,
P: Deref<Target = A>,
Mutably borrows from an owned value. Read more
pub fn load(&self) -> DynGuard<T>
pub fn load(&self) -> DynGuard<T>
The equivalent of [Access::load
].
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more