Enum AppendError 

#[non_exhaustive]
pub enum AppendError {
    Request(RequestError),
    ConditionFailed(AppendConditionFailed),
}

Errors returned by unary append operations.

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.

Request(RequestError)

A network request error.

ConditionFailed(AppendConditionFailed)

The append condition did not match.

Implementations

impl AppendError

pub fn is_retryable(&self) -> bool

Whether retrying the operation is safe or sensible.

pub fn has_no_side_effects(&self) -> bool

Whether retrying the operation cannot duplicate a mutation.

pub fn request_error(&self) -> Option<&RequestError>

Return the underlying request error, if present.

Trait Implementations

impl Clone for AppendError

fn clone(&self) -> AppendError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AppendError

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

Formats the value using the given formatter.

impl Display for AppendError

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

Formats the value using the given formatter.

impl Error for AppendError

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 From<AppendConditionFailed> for AppendError

fn from(source: AppendConditionFailed) -> Self

Converts to this type from the input type.

impl From<AppendError> for AppendSessionError

fn from(source: AppendError) -> Self

Converts to this type from the input type.

impl From<RequestError> for AppendError

fn from(source: RequestError) -> Self

Converts to this type from the input type.