Trait OptionalExtract 

pub trait OptionalExtract:
    Sized
    + Send
    + Sync {
    // Required method
    fn extract(req: &Request<SgBody>) -> Option<Self>;
}

Required Methods

fn extract(req: &Request<SgBody>) -> Option<Self>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl OptionalExtract for OriginalIpAddr

impl<A> OptionalExtract for Authorization<A>

where A: TryFrom<HeaderValue> + Send + Sync + 'static, A::Error: Into<BoxError>,

impl<E: Clone + Send + Sync + 'static> OptionalExtract for Extension<E>