Struct Inject 

pub struct Inject<T: Send + Sync + 'static>(pub Arc<T>);

Ergonomic alias for Data<T> — intended for use inside controllers.

Semantically identical to Data, but reads more naturally in constructor injection code:

fn new(state: &AppState) -> Self {
    Self {
        pool: state.get::<DbPool>().expect("DbPool missing").as_ref().clone(),
    }
}

#[get("/")]
async fn index(&self, Inject(cache): Inject<Cache>) -> ApiResponse<String> {
    // ...
}

Tuple Fields

0: Arc<T>

Trait Implementations

impl<S: Send + Sync, T: Send + Sync + 'static> FromRequestParts<S> for Inject<T>

type Rejection = StateNotFound

If the extractor fails it’ll use this “rejection” type. A rejection is a kind of error that can be converted into a response.

async fn from_request_parts( parts: &mut Parts, _state: &S, ) -> Result<Self, Self::Rejection>

Perform the extraction.