Trait FromRequestParts 

pub trait FromRequestParts: Sized + Send {
    type Error: IntoResponse;

    // Required method
    fn from_request_parts(parts: &Parts) -> Result<Self, Self::Error>;
}

Extract a value from request metadata (URI, headers, extensions).

Implementors can be used as handler arguments. Multiple FromRequestParts extractors can appear in a single handler since they don’t consume the body.

Required Associated Types

type Error: IntoResponse

The error type returned when extraction fails.

Required Methods

fn from_request_parts(parts: &Parts) -> Result<Self, Self::Error>

Extract this type from the request parts.

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 FromRequestParts for HeaderMap

type Error = (StatusCode, String)

fn from_request_parts(parts: &Parts) -> Result<Self, Self::Error>

impl FromRequestParts for Method

Extracts the HTTP method from the request.

type Error = (StatusCode, String)

fn from_request_parts(parts: &Parts) -> Result<Self, Self::Error>

impl FromRequestParts for Uri

Extracts the request URI.

type Error = (StatusCode, String)

fn from_request_parts(parts: &Parts) -> Result<Self, Self::Error>

Implementors

impl FromRequestParts for AcceptHeader

type Error = Infallible

impl FromRequestParts for CookieJar

type Error = (StatusCode, String)

impl<P> FromRequestParts for Path<P>

where P: PathSpec + ExtractPath + Send, P::Captures: Send,

type Error = (StatusCode, String)

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

type Error = (StatusCode, String)

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

type Error = (StatusCode, String)

impl<T: DeserializeOwned + Send> FromRequestParts for Query<T>

type Error = (StatusCode, String)

impl<T: NamedCookie + 'static> FromRequestParts for Cookie<T>

type Error = (StatusCode, String)

impl<T: NamedHeader + 'static> FromRequestParts for Header<T>

type Error = (StatusCode, String)