Module error 

Error types for ExecutionClient operations.

Retry Semantics

Use ClientError::is_transient to determine if an operation should be retried. Transient errors (connectivity issues, rate limits) may succeed on retry with appropriate backoff. Non-transient errors (invalid instrument, insufficient balance) will fail identically on retry — the caller must change the request.

The is_transient() method is the stable contract for retry decisions. Prefer it over pattern matching on specific variants, as the internal taxonomy may evolve while is_transient() semantics remain stable.

Structs

AccountReinitFailure

A failed attempt to re-initialise an account stream after it ended.

BorrowReject

Why a venue refused to lend for an order, as carried by ApiError::BorrowRejected.

BoundsViolation

A value in an order request that is below a venue minimum or above a venue maximum.

PrecisionViolation

A value in an order request with more precision than the venue accepts, or that is not positive.

Enums

AccountStreamInitError

Why an attempt to initialise an account stream, its snapshot and its updates, failed.

ApiError

Represents all API errors generated by an exchange.

BorrowRejectReason

The kind of borrow refusal carried by a BorrowReject.

Bound

Which end of a range a BoundsViolation broke.

ClientError

Represents all errors produced by an ExecutionClient.

ConnectivityError

Represents all connectivity-centric errors.

KeyError

Represents errors related to exchange, asset and instrument identifier key lookups.

NotPlacedReason

How an order is known not to have been placed.

OrderError

Represents all errors that can be generated when cancelling or opening orders.

OrderField

A value of an order request, as named by a PrecisionViolation or BoundsViolation.

PrecisionLimit

A venue’s precision rule, as broken by a PrecisionViolation.

StreamTerminationReason

Why an account event stream ended.

Type Aliases

UnindexedAccountStreamInitError

Type alias for an AccountStreamInitError that is keyed on AssetNameExchange and InstrumentNameExchange (yet to be indexed).

UnindexedApiError

Type alias for a ApiError that is keyed on AssetNameExchange and InstrumentNameExchange (yet to be indexed).

UnindexedClientError

Type alias for a ClientError that is keyed on AssetNameExchange and InstrumentNameExchange (yet to be indexed).

UnindexedOrderError

Type alias for a OrderError that is keyed on AssetNameExchange and InstrumentNameExchange (yet to be indexed).