Enum ClientError 

pub enum ClientError {
    NotFound {
        detail: ErrorDetail,
    },
    AlreadyExists {
        detail: ErrorDetail,
    },
    QueryFailed {
        detail: ErrorDetail,
    },
    QueryTimeout {
        detail: ErrorDetail,
    },
    UnknownQuery {
        detail: ErrorDetail,
    },
    NotRunning {
        detail: ErrorDetail,
    },
    Cancelled {
        detail: ErrorDetail,
    },
    Unavailable {
        detail: ErrorDetail,
    },
    Unauthenticated {
        detail: ErrorDetail,
    },
    NamespaceDenied {
        detail: ErrorDetail,
    },
    InvalidArgument {
        detail: ErrorDetail,
    },
    Server {
        detail: ErrorDetail,
    },
}

Branchable caller-side error taxonomy shared by every aion client SDK.

Display renders <class>: <detail> where <class> is the stable string returned by ClientError::class, aligned with the wire error codes (not_found, namespace_denied, invalid_input, backend, …).

Variants

NotFound

The requested workflow or run does not exist.

Fields

detail: ErrorDetail

Server-supplied detail message.

AlreadyExists

A caller-supplied idempotency key conflicts with a different request.

Fields

detail: ErrorDetail

Conflict detail message.

QueryFailed

The workflow query handler ran and reported an application failure.

Fields

detail: ErrorDetail

Handler failure detail reported by the workflow.

QueryTimeout

The workflow query exceeded its deadline.

Fields

detail: ErrorDetail

Deadline detail (server window or local deadline).

UnknownQuery

The requested workflow query name is not registered.

Fields

detail: ErrorDetail

Server-supplied detail naming the unknown query.

NotRunning

The target workflow is terminal or otherwise not running.

Fields

detail: ErrorDetail

Server-supplied detail about the non-running target.

Cancelled

The call or target workflow was cancelled.

Fields

detail: ErrorDetail

Cancellation detail message.

Unavailable

The server or network transport is unavailable.

Fields

detail: ErrorDetail

Transport/connection failure detail.

Unauthenticated

Authentication credentials were rejected.

Fields

detail: ErrorDetail

Credential rejection detail.

NamespaceDenied

The caller’s credential was accepted, but the caller has no grant for the requested namespace.

This is exactly a namespace-grant failure. Workflow-level invisibility — the workflow does not exist, or is owned by another namespace — is reported as ClientError::NotFound so a cross-tenant probe is indistinguishable from a nonexistent workflow.

Maps from the AW wire error code namespace_denied and gRPC PERMISSION_DENIED. Distinct from ClientError::Unauthenticated (credential rejected or unvalidatable) and from ClientError::InvalidArgument (malformed or invalid request). Not retryable until the caller’s grants change.

Fields

detail: ErrorDetail

Server-supplied denial detail message.

InvalidArgument

The request was malformed or targets an unsupported operation state.

Fields

detail: ErrorDetail

Precise description of what was invalid and how to fix it.

Server

The server reported an unexpected internal failure.

Fields

detail: ErrorDetail

Informational server detail.

Implementations

impl ClientError

pub fn not_found(detail: impl Into<ErrorDetail>) -> Self

Creates a not-found error.

pub fn already_exists(detail: impl Into<ErrorDetail>) -> Self

Creates an idempotency-conflict error.

pub fn query_failed(detail: impl Into<ErrorDetail>) -> Self

Creates a query-handler failure.

pub fn query_timeout(detail: impl Into<ErrorDetail>) -> Self

Creates a query timeout.

pub fn unknown_query(detail: impl Into<ErrorDetail>) -> Self

Creates an unknown-query error.

pub fn not_running(detail: impl Into<ErrorDetail>) -> Self

Creates a not-running error.

pub fn cancelled(detail: impl Into<ErrorDetail>) -> Self

Creates a cancellation error.

pub fn unavailable(detail: impl Into<ErrorDetail>) -> Self

Creates a transport-unavailable error.

pub fn unauthenticated(detail: impl Into<ErrorDetail>) -> Self

Creates a credential-rejection error.

pub fn namespace_denied(detail: impl Into<ErrorDetail>) -> Self

Creates a namespace-grant denial.

pub fn invalid_argument(detail: impl Into<ErrorDetail>) -> Self

Creates an ClientError::InvalidArgument carrying a precise message.

pub fn server(detail: impl Into<ErrorDetail>) -> Self

Creates an unexpected-server-failure error from a local conversion or server detail.

pub const fn class(&self) -> &'static str

Stable taxonomy class string, aligned with the wire error codes.

pub const fn detail(&self) -> &ErrorDetail

The diagnostic detail carried by this error.

pub fn from_wire_error(error: WireError) -> Self

Converts an AW wire error into the client SDK taxonomy, preserving the server’s message and error_type in the carried ErrorDetail.

pub fn from_proto_wire_error(error: ProtoWireError) -> Self

Converts a proto-encoded wire error into the client SDK taxonomy.

pub fn from_status(status: &Status) -> Self

Converts a tonic status into the client SDK taxonomy.

The server encodes the full typed WireError (code, message, error_type) into the status details; when present it is authoritative. Without decodable details the gRPC code is mapped and the status message becomes the detail, so the server’s human detail is never dropped.

pub fn from_transport_error(error: &Error) -> Self

Converts a tonic transport failure into the client SDK taxonomy, preserving the full transport error chain as the detail message.

Trait Implementations

impl Clone for ClientError

fn clone(&self) -> ClientError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClientError

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

Formats the value using the given formatter.

impl Display for ClientError

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

Formats the value using the given formatter.

impl Eq for ClientError

impl Error for ClientError

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 ClientError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ClientError