Enum MandateError 

pub enum MandateError {
    InvalidIntent,
    InvalidCart,
    InvalidPayment,
    UntrustedSigner(&'static str),
    ConversationMismatch(&'static str),
    CallerMismatch,
    Expired {
        kind: &'static str,
        expires_at_unix: u64,
    },
    CartNotChainedToIntent,
    PaymentNotChainedToCart,
    MalformedAmount(&'static str),
    AmountWidensAtCart {
        cart: u128,
        intent: u128,
    },
    AmountWidensAtPayment {
        payment: u128,
        cart: u128,
    },
    CurrencyMismatch,
    EmptyScope,
    ExceedsAuthorization {
        authorized: u128,
        authorized_host: String,
        requested: u128,
        requested_host: String,
    },
    ArgsBindingMismatch,
    ApprovalDoesNotAuthorizeCall,
}

Raised while validating a MandateChain or authorizing a spend against a VerifiedMandateChain.

Variants

InvalidIntent

The Intent mandate is malformed or its signature does not verify.

InvalidCart

The Cart mandate is malformed or its signature does not verify.

InvalidPayment

The Payment mandate is malformed or its signature does not verify.

UntrustedSigner(&'static str)

A link’s signer is neither the platform issuer key nor (for the Intent link, when a persona credential is on record) the persona’s own recorded signing key.

ConversationMismatch(&'static str)

A link is bound to a different conversation than the one it is being consumed in.

CallerMismatch

The chain’s links are not all bound to one consistent caller.

Expired

A link has expired as of the check time.

Fields

kind: &'static str

Which link expired.

expires_at_unix: u64

Its signed unix-seconds expiry.

CartNotChainedToIntent

The Cart’s intent_hash does not reference the presented Intent.

PaymentNotChainedToCart

The Payment’s cart_hash does not reference the presented Cart.

MalformedAmount(&'static str)

A signed amount field is not a parseable base-unit integer. Fails closed: a mandate whose amount cannot be understood authorizes nothing.

AmountWidensAtCart

The Cart’s amount exceeds the Intent’s ceiling (widening).

Fields

cart: u128

The Cart’s base-unit amount.

intent: u128

The Intent’s base-unit ceiling.

AmountWidensAtPayment

The Payment’s amount exceeds the Cart’s amount (widening).

Fields

payment: u128

The Payment’s base-unit amount.

cart: u128

The Cart’s base-unit amount.

CurrencyMismatch

Currency differs across the chain.

EmptyScope

The Cart’s merchant scope is empty — a scopeless cart authorizes nothing (fail closed).

ExceedsAuthorization

A verified chain does not cover the proposed spend (amount or destination).

Fields

authorized: u128

The base-unit amount the chain authorizes.

authorized_host: String

The merchant host the chain authorizes spend against.

requested: u128

The requested base-unit amount.

requested_host: String

The host the request targets.

ArgsBindingMismatch

The call’s args do not match the exact args_json the Payment mandate signed — a mandate minted for one call cannot authorize a different one.

ApprovalDoesNotAuthorizeCall

The verified HITL approval offered as the trust root does not authorize the exact call the Payment mandate is being minted for.

Trait Implementations

impl Clone for MandateError

fn clone(&self) -> MandateError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MandateError

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

Formats the value using the given formatter.

impl Display for MandateError

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

Formats the value using the given formatter.

impl Eq for MandateError

impl Error for MandateError

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 PartialEq for MandateError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MandateError