axum/axum-core/src/extract/rejection.rs

//! Rejection response types.

define_rejection! {
    #[status = INTERNAL_SERVER_ERROR]
    #[body = "Cannot have two request body extractors for a single handler"]
    /// Rejection type used if you try and extract the request body more than
    /// once.
    pub struct BodyAlreadyExtracted;
}

define_rejection! {
    #[status = INTERNAL_SERVER_ERROR]
    #[body = "Extensions taken by other extractor"]
    /// Rejection used if the request extension has been taken by another
    /// extractor.
    pub struct ExtensionsAlreadyExtracted;
}

define_rejection! {
    #[status = BAD_REQUEST]
    #[body = "Failed to buffer the request body"]
    /// Rejection type for extractors that buffer the request body. Used if the
    /// request body cannot be buffered due to an error.
    pub struct FailedToBufferBody(Error);
}

define_rejection! {
    #[status = BAD_REQUEST]
    #[body = "Request body didn't contain valid UTF-8"]
    /// Rejection type used when buffering the request into a [`String`] if the
    /// body doesn't contain valid UTF-8.
    pub struct InvalidUtf8(Error);
}

composite_rejection! {
    /// Rejection used for [`Request<_>`].
    ///
    /// Contains one variant for each way the [`Request<_>`] extractor can fail.
    ///
    /// [`Request<_>`]: http::Request
    pub enum RequestAlreadyExtracted {
        BodyAlreadyExtracted,
        ExtensionsAlreadyExtracted,
    }
}

composite_rejection! {
    /// Rejection used for [`Bytes`](bytes::Bytes).
    ///
    /// Contains one variant for each way the [`Bytes`](bytes::Bytes) extractor
    /// can fail.
    pub enum BytesRejection {
        BodyAlreadyExtracted,
        FailedToBufferBody,
    }
}

composite_rejection! {
    /// Rejection used for [`String`].
    ///
    /// Contains one variant for each way the [`String`] extractor can fail.
    pub enum StringRejection {
        BodyAlreadyExtracted,
        FailedToBufferBody,
        InvalidUtf8,
    }
}

composite_rejection! {
    /// Rejection used for [`http::request::Parts`].
    ///
    /// Contains one variant for each way the [`http::request::Parts`] extractor can fail.
    pub enum RequestPartsAlreadyExtracted {
        ExtensionsAlreadyExtracted,
    }
}