Enum ForwardError 

pub enum ForwardError<MiddlewareError = Infallible> {
    Io(Error),
    Frontend(FrontendProjectionError),
    Backend(BackendProjectionError),
    Deferred(BackendMessage),
    Middleware(MiddlewareError),
}

Operational forwarding or pipeline projection failure.

Variants

Io(Error)

Transport, decoding, or encoding failure.

Frontend(FrontendProjectionError)

Frontend backpressure or protocol-legality rejection.

Backend(BackendProjectionError)

Backend protocol-legality rejection.

Deferred(BackendMessage)

A bounded response arrived before its operation became emittable.

Middleware(MiddlewareError)

Forwarding-boundary middleware rejected a message.

Trait Implementations

impl<MiddlewareError: Debug> Debug for ForwardError<MiddlewareError>

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

Formats the value using the given formatter.

impl<E> Display for ForwardError<E>

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

Formats the value using the given formatter.

impl<E> Error for ForwardError<E>

where E: Error + 'static,

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<E> From<Error> for ForwardError<E>

fn from(error: Error) -> Self

Converts to this type from the input type.