Enum ErrorReason 

#[non_exhaustive]
pub enum ErrorReason {
    InsufficientFunds,
    InvalidExactEvmPayloadAuthorizationValidAfter,
    InvalidExactEvmPayloadAuthorizationValidBefore,
    InvalidExactEvmPayloadAuthorizationValueMismatch,
    InvalidExactEvmPayloadSignature,
    InvalidExactEvmPayloadRecipientMismatch,
    InvalidNetwork,
    InvalidPayload,
    InvalidPaymentRequirements,
    InvalidScheme,
    UnsupportedScheme,
    InvalidX402Version,
    InvalidTransactionState,
    UnexpectedVerifyError,
    UnexpectedSettleError,
    SettlementPending,
    DuplicateSettlement,
    NonceAlreadyUsed,
    Permit2AllowanceRequired,
    InvalidUptoEvmPayloadSettlementExceedsAmount,
    UptoFacilitatorMismatch,
    UptoUnauthorizedFacilitator,
    UptoAmountExceedsPermitted,
    InvalidExactSolanaPayloadMemoMismatch,
    InvalidExactSolanaPayloadMemoCount,
    IncompatibleSettlementMode,
    SettlementAborted,
    ExtensionEchoMismatch,
    Custom(CompactString),
}

Canonical error code on the wire when a payment fails.

Unknown codes round-trip through Self::Custom.

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.

InsufficientFunds

Wire code: insufficient_funds.

InvalidExactEvmPayloadAuthorizationValidAfter

Wire code: invalid_exact_evm_payload_authorization_valid_after.

InvalidExactEvmPayloadAuthorizationValidBefore

Wire code: invalid_exact_evm_payload_authorization_valid_before.

InvalidExactEvmPayloadAuthorizationValueMismatch

Wire code: invalid_exact_evm_payload_authorization_value_mismatch.

InvalidExactEvmPayloadSignature

Wire code: invalid_exact_evm_payload_signature.

InvalidExactEvmPayloadRecipientMismatch

Wire code: invalid_exact_evm_payload_recipient_mismatch.

InvalidNetwork

Wire code: invalid_network.

InvalidPayload

Wire code: invalid_payload.

InvalidPaymentRequirements

Wire code: invalid_payment_requirements.

InvalidScheme

Wire code: invalid_scheme.

UnsupportedScheme

Wire code: unsupported_scheme.

InvalidX402Version

Wire code: invalid_x402_version.

InvalidTransactionState

Wire code: invalid_transaction_state.

UnexpectedVerifyError

Wire code: unexpected_verify_error.

UnexpectedSettleError

Wire code: unexpected_settle_error.

SettlementPending

Wire code: settlement_pending.

Non-terminal. A crate::payment::SettleResponse::Failure with this reason MUST carry a non-empty transaction.

DuplicateSettlement

Wire code: duplicate_settlement.

NonceAlreadyUsed

Wire code: nonce_already_used.

Permit2AllowanceRequired

Wire code: permit2_allowance_required. HTTP mapping: 412.

InvalidUptoEvmPayloadSettlementExceedsAmount

Wire code: invalid_upto_evm_payload_settlement_exceeds_amount.

UptoFacilitatorMismatch

Wire code: upto_facilitator_mismatch.

UptoUnauthorizedFacilitator

Wire code: upto_unauthorized_facilitator.

UptoAmountExceedsPermitted

Wire code: upto_amount_exceeds_permitted.

InvalidExactSolanaPayloadMemoMismatch

Wire code: invalid_exact_solana_payload_memo_mismatch.

InvalidExactSolanaPayloadMemoCount

Wire code: invalid_exact_solana_payload_memo_count.

IncompatibleSettlementMode

Wire code: incompatible_settlement_mode. HTTP mapping: 500.

SettlementAborted

Wire code: settlement_aborted. HTTP mapping: 402.

ExtensionEchoMismatch

Wire code: extension_echo_mismatch.

Custom(CompactString)

Unknown wire code, preserved verbatim.

Implementations

impl ErrorReason

pub fn as_str(&self) -> &str

Returns the wire-format code (snake_case per spec §9).

pub fn from_wire(code: &str) -> Self

Maps a wire code to a canonical variant, or Self::Custom.

Trait Implementations

impl Clone for ErrorReason

fn clone(&self) -> ErrorReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ErrorReason

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ErrorReason

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for ErrorReason

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

Formats the value using the given formatter.

impl Eq for ErrorReason

impl From<&str> for ErrorReason

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<CompactString> for ErrorReason

fn from(value: CompactString) -> Self

Converts to this type from the input type.

impl From<String> for ErrorReason

fn from(value: String) -> Self

Converts to this type from the input type.

impl Hash for ErrorReason

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 ErrorReason

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ErrorReason

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ErrorReason