axum_core::extract

Trait FromRequestParts

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pub trait FromRequestParts<S>: Sized {
    type Rejection: IntoResponse;

    // Required method
    fn from_request_parts(
        parts: &mut Parts,
        state: &S,
    ) -> impl Future<Output = Result<Self, Self::Rejection>> + Send;
}
Expand description

Types that can be created from request parts.

Extractors that implement FromRequestParts cannot consume the request body and can thus be run in any order for handlers.

If your extractor needs to consume the request body then you should implement FromRequest and not FromRequestParts.

See axum::extract for more general docs about extractors.

Required Associated Types§

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type Rejection: IntoResponse

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

Required Methods§

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fn from_request_parts( parts: &mut Parts, state: &S, ) -> impl Future<Output = Result<Self, Self::Rejection>> + Send

Perform the extraction.

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§

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impl<S> FromRequestParts<S> for ()
where S: Send + Sync,

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type Rejection = Infallible

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

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impl<S> FromRequestParts<S> for Extensions
where S: Send + Sync,

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type Rejection = Infallible

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

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impl<S> FromRequestParts<S> for HeaderMap
where S: Send + Sync,

Clone the headers from the request.

Prefer using TypedHeader to extract only the headers you need.

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type Rejection = Infallible

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

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impl<S> FromRequestParts<S> for Method
where S: Send + Sync,

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type Rejection = Infallible

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

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impl<S> FromRequestParts<S> for Parts
where S: Send + Sync,

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type Rejection = Infallible

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

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impl<S> FromRequestParts<S> for Uri
where S: Send + Sync,

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type Rejection = Infallible

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

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impl<S> FromRequestParts<S> for Version
where S: Send + Sync,

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type Rejection = Infallible

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

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impl<S, T1> FromRequestParts<S> for (T1,)
where T1: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2> FromRequestParts<S> for (T1, T2)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3> FromRequestParts<S> for (T1, T2, T3)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4> FromRequestParts<S> for (T1, T2, T3, T4)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5> FromRequestParts<S> for (T1, T2, T3, T4, T5)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, T10: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, T10: FromRequestParts<S> + Send, T11: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, T10: FromRequestParts<S> + Send, T11: FromRequestParts<S> + Send, T12: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, T10: FromRequestParts<S> + Send, T11: FromRequestParts<S> + Send, T12: FromRequestParts<S> + Send, T13: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, T10: FromRequestParts<S> + Send, T11: FromRequestParts<S> + Send, T12: FromRequestParts<S> + Send, T13: FromRequestParts<S> + Send, T14: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, T10: FromRequestParts<S> + Send, T11: FromRequestParts<S> + Send, T12: FromRequestParts<S> + Send, T13: FromRequestParts<S> + Send, T14: FromRequestParts<S> + Send, T15: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16> FromRequestParts<S> for (T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16)
where T1: FromRequestParts<S> + Send, T2: FromRequestParts<S> + Send, T3: FromRequestParts<S> + Send, T4: FromRequestParts<S> + Send, T5: FromRequestParts<S> + Send, T6: FromRequestParts<S> + Send, T7: FromRequestParts<S> + Send, T8: FromRequestParts<S> + Send, T9: FromRequestParts<S> + Send, T10: FromRequestParts<S> + Send, T11: FromRequestParts<S> + Send, T12: FromRequestParts<S> + Send, T13: FromRequestParts<S> + Send, T14: FromRequestParts<S> + Send, T15: FromRequestParts<S> + Send, T16: FromRequestParts<S> + Send, S: Send + Sync,

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type Rejection = Response<Body>

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

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impl<S, T> FromRequestParts<S> for Option<T>
where T: OptionalFromRequestParts<S>, S: Send + Sync,

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type Rejection = <T as OptionalFromRequestParts<S>>::Rejection

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fn from_request_parts( parts: &mut Parts, state: &S, ) -> impl Future<Output = Result<Option<T>, Self::Rejection>>

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impl<S, T> FromRequestParts<S> for Result<T, T::Rejection>
where T: FromRequestParts<S>, S: Send + Sync,

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type Rejection = Infallible

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

Implementors§