Enum FyndError 

pub enum FyndError {
    Http(Error),
    Provider(RpcError<TransportErrorKind>),
    Api {
        code: ErrorCode,
        message: String,
    },
    Protocol(String),
    SimulationFailed(String),
    TransactionReverted(String),
    Config(String),
}

Errors that can be returned by FyndClient methods.

Variants

Http(Error)

An HTTP-level error from the underlying reqwest client (network failure, timeout, etc.).

HTTP errors are always considered retryable.

Provider(RpcError<TransportErrorKind>)

An error returned by the Ethereum JSON-RPC provider (e.g. during nonce/fee estimation or transaction submission).

Api

A structured error response from the Fynd RPC API. Check code to distinguish permanent failures (e.g. NoRouteFound) from transient ones (e.g. SolveTimeout).

Fields

code: ErrorCode

message: String

Protocol(String)

Malformed or unexpected data in the API response (e.g. an address with the wrong byte length, an unrecognised enum variant).

SimulationFailed(String)

A eth_call simulation of the swap transaction reverted. The message contains the revert reason when available.

TransactionReverted(String)

An on-chain transaction was mined but reverted. The message contains the revert reason decoded from replaying the transaction via eth_call.

Config(String)

Invalid client configuration (e.g. unparseable URL, missing sender address).

Implementations

impl FyndError

pub fn is_retryable(&self) -> bool

Returns true if the operation that produced this error can safely be retried.

HTTP errors and certain API error codes are retryable. Protocol, config, and simulation errors are not.

pub fn is_revert(&self) -> bool

Returns true if this error represents an on-chain transaction revert.

Trait Implementations

impl Debug for FyndError

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

Formats the value using the given formatter.

impl Display for FyndError

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

Formats the value using the given formatter.

impl Error for FyndError

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 FyndError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<RpcError<TransportErrorKind>> for FyndError

fn from(source: RpcError<TransportErrorKind>) -> Self

Converts to this type from the input type.