Trait FromRequest

pub trait FromRequest<B = Body>: Sized {
    type Error: Into<BoxedErrorResponse>;

    // Required method
    fn from_request(
        head_parts: &mut RequestHeadParts,
        body: B,
    ) -> impl Future<Output = Result<Self, Self::Error>> + Send;
}

A trait for extractor types.

Implementors of the FromRequest consume the request body and usually convert it to some form of data.

Required Associated Types

type Error: Into<BoxedErrorResponse>

Required Methods

fn from_request( head_parts: &mut RequestHeadParts, body: B, ) -> impl Future<Output = Result<Self, Self::Error>> + Send

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.

Implementations on Foreign Types

impl<B> FromRequest<B> for ()

type Error = Infallible

fn from_request( _head_parts: &mut RequestHeadParts, _: B, ) -> impl Future<Output = Result<Self, Self::Error>> + Send

impl<B, T> FromRequest<B> for Option<T>

where T: FromRequest<B>,

type Error = Infallible

fn from_request( head_parts: &mut RequestHeadParts, body: B, ) -> impl Future<Output = Result<Self, Self::Error>>

impl<B, T, E> FromRequest<B> for Result<T, E>

where T: FromRequest<B, Error = E>,

type Error = Infallible

fn from_request( head_parts: &mut RequestHeadParts, body: B, ) -> impl Future<Output = Result<Self, Self::Error>>

Implementors