Trait OptionalFromRequest

pub trait OptionalFromRequest<S, M = ViaRequest>: Sized

Customize the behavior of Option<Self> as a FromRequest extractor.

Associated Types

type Rejection: IntoResponse;

If the extractor fails, it will use this "rejection" type.

A rejection is a kind of error that can be converted into a response.

Required Methods

fn from_request(req: Request, state: &S) -> impl Future<Output = Result<Option<Self>, Self::Rejection>> + Send

Perform the extraction.