Enum PipelineError 

#[non_exhaustive]
pub enum PipelineError {
    BadRequest(String),
    Unauthorized(String),
    Blocked(String),
    Upstream(String),
    Abort(String),
    Unavailable(String),
}

Hot-path failures, each carrying an HTTP status mapping.

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.

BadRequest(String)

A request header was malformed or inconsistent.

Unauthorized(String)

Identity was missing or invalid.

Blocked(String)

A stateful quota or loop breaker blocked execution.

Upstream(String)

The upstream provider request failed.

Abort(String)

The breaker requested immediate connection closure.

Unavailable(String)

Required audit capture infrastructure is unavailable.

Implementations

impl PipelineError

pub fn status(&self) -> StatusCode

HTTP status code corresponding to this failure.

• Blocked / Abort are permanent policy verdicts for the current session: 403 / 409 stop mainstream SDK auto-retry loops that would otherwise interpret 429 as transient rate limiting and burn budget re-hitting the same breaker.
• Unavailable is transient: 503 is paired with Retry-After at the response layer so intermediaries and clients back off in bounded fashion (RFC 7231 §7.1.3).
• Unauthorized is paired with WWW-Authenticate at the response layer (RFC 7235 §3.1).

Trait Implementations

impl Debug for PipelineError

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

Formats the value using the given formatter.

impl Display for PipelineError

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

Formats the value using the given formatter.

impl Error for PipelineError

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.