Enum RoutingErrorKind 

#[non_exhaustive]
pub enum RoutingErrorKind {
    UnknownOperation,
    MethodNotAllowed,
    MalformedRequest,
    UnsupportedOperation,
    MissingContentType,
}

The routing-semantic classification of a rejection.

Keep this classification coarse; finer diagnostic detail belongs in RoutingError’s source chain. #[non_exhaustive] so a protocol that someday needs a new wire distinction can get a kind instead of downcasting sources.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnknownOperation

The request is framed as this protocol but names no operation the service serves — or is missing what would name one (e.g. X-Amz-Target).

MethodNotAllowed

The URI matched an operation but the HTTP method did not.

Only REST routing can produce this: RPC protocols don’t route on the method, so a wrong verb there is indistinguishable from an unknown operation. Protocols that do not distinguish method failures can map this kind to their unknown-operation response.

MalformedRequest

The request claims the protocol but violates its framing rules — forbidden headers, a malformed rpcv2 path, an invalid header value.

UnsupportedOperation

A known operation uses a feature unsupported by the selected protocol.

MissingContentType

A matched REST input has a required body member without a default, but the request omits Content-Type. REST protocols frame this as unsupported media type.

Trait Implementations

impl Clone for RoutingErrorKind

fn clone(&self) -> RoutingErrorKind

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RoutingErrorKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for RoutingErrorKind

fn eq(&self, other: &RoutingErrorKind) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for RoutingErrorKind

impl Eq for RoutingErrorKind

impl StructuralPartialEq for RoutingErrorKind