Enum ErrorKind 

#[non_exhaustive]
pub enum ErrorKind {
    Configuration,
    Unauthorized,
    Forbidden,
    HttpStatus,
    Transport,
    ResponseTooLarge,
    Encode,
    Api,
    Decode,
    Utf8,
    WebSocketConnectTimeout,
    WebSocket,
    Proxy,
    EventDecode,
    UnexpectedWebSocketFrame,
    MissingObject,
}

Stable category for an Error without exposing its variant fields.

This is useful for metrics and policy decisions that should not depend on the concrete error payload. Use Error::status, Error::method, and Error::url when the associated HTTP context is needed.

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.

Configuration

Invalid client or request configuration.

Unauthorized

Missing or expired authentication.

Forbidden

Authorization or CSRF rejection.

HttpStatus

Non-success HTTP status other than 401 or 403.

Transport

HTTP transport or response-body IO failure.

ResponseTooLarge

HTTP response body exceeded its configured memory limit.

Encode

Request serialization failure.

Api

Application-level rejection in a successful HTTP response.

Decode

HTTP response JSON decoding failure.

Utf8

Invalid UTF-8 response body.

WebSocketConnectTimeout

WebSocket connection timeout.

WebSocket

WebSocket handshake, transport, or protocol failure.

Proxy

Explicit outbound proxy connection or negotiation failure.

EventDecode

WebSocket event JSON decoding failure.

UnexpectedWebSocketFrame

Unsupported WebSocket application frame.

MissingObject

Successful response missing its required object.

Implementations

impl ErrorKind

pub const fn as_str(self) -> &'static str

Returns a stable snake-case label suitable for logs and metrics.

Trait Implementations

impl Clone for ErrorKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ErrorKind

impl Debug for ErrorKind

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

Formats the value using the given formatter.

impl Display for ErrorKind

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

Formats the value using the given formatter.

impl Eq for ErrorKind

impl Hash for ErrorKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ErrorKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ErrorKind