Struct State 

pub struct State<T>(pub Arc<T>);

Extracts application state.

Provides access to shared application state that was registered with Rapina::state.

The inner value is wrapped in an Arc<T>, so extraction is always a cheap atomic reference-count bump rather than a deep clone. This also removes the Clone requirement on T.

Examples

use rapina::prelude::*;

struct AppConfig {
    db_url: String,
}

#[get("/config")]
async fn get_config(state: State<AppConfig>) -> String {
    state.db_url.clone()
}

Tuple Fields

0: Arc<T>

Implementations

impl<T> State<T>

pub fn into_inner(self) -> Arc<T>

Consumes the extractor and returns the inner Arc<T>.

Trait Implementations

impl<T: Clone> Clone for State<T>

fn clone(&self) -> State<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for State<T>

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

Formats the value using the given formatter.

impl<T> Deref for State<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: Send + Sync + 'static> FromRequestParts for State<T>

async fn from_request_parts( _parts: &Parts, _params: &PathParams, state: &Arc<AppState>, ) -> Result<Self, Error>

Extract the value from request parts.