Enum ExchangeError 

#[non_exhaustive]
pub enum ExchangeError {
    Http(Error),
    WebSocket(Box<Error>),
    Json(Error),
    Api {
        code: String,
        message: String,
    },
    Auth(String),
    Config(String),
    Order(String),
    WsDisconnected {
        url: String,
        attempts: u32,
    },
    InsufficientData(String),
    Other(Error),
}

All errors that can be returned by exchange-apiws.

Marked #[non_exhaustive] so downstream match arms must include a catch-all (_). This allows new variants to be added in minor releases without breaking callers.

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.

Http(Error)

HTTP transport error from reqwest.

WebSocket(Box<Error>)

WebSocket transport error from tungstenite (boxed to reduce enum size).

Json(Error)

JSON serialization or deserialization error.

Api

The exchange returned a non-success response code.

Fields

code: String

KuCoin error code string (e.g. "400100").

message: String

Human-readable error message from the exchange.

Auth(String)

HMAC signing or credential validation failed.

Config(String)

A required configuration value is missing or invalid.

Order(String)

An order-level error (e.g. trying to close a flat position).

WsDisconnected

WebSocket feed gave up after exhausting all reconnect attempts.

Carries the WS URL and the number of attempts made so callers can log which feed died and how hard it tried.

Fields

url: String

The WSS URL that failed.

attempts: u32

Number of consecutive reconnect attempts before giving up.

InsufficientData(String)

Not enough historical data to complete the requested operation.

Other(Error)

Catch-all for errors from third-party libraries via anyhow.

Trait Implementations

impl Debug for ExchangeError

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

Formats the value using the given formatter.

impl Display for ExchangeError

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

Formats the value using the given formatter.

impl Error for ExchangeError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for ExchangeError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for ExchangeError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for ExchangeError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for ExchangeError

fn from(e: Error) -> Self

Converts to this type from the input type.