Enum RetryClass 

pub enum RetryClass {
    RetryAfter(Duration),
    RateLimited,
    Unavailable,
    Timeout,
    Revoked,
    Permanent,
}

How a caller should react to a failed upstream request.

Variants

RetryAfter(Duration)

The upstream asked for a specific wait before the next attempt.

This is a rate limit that came with a usable Retry-After value.

RateLimited

The upstream rate limited the request without saying for how long.

Back off with the client’s own schedule.

Unavailable

The upstream is failing or unreachable and the request may be retried.

Timeout

The request timed out before a response arrived.

Revoked

The credential was rejected; re-authorize instead of retrying.

Permanent

The request will fail the same way again; do not retry.

Implementations

impl RetryClass

pub const fn is_retryable(self) -> bool

Returns whether retrying the same request can succeed.

RetryClass::Revoked and RetryClass::Permanent return false: both need an operator or a re-authorization, not another attempt.

pub const fn retry_after(self) -> Option<Duration>

Returns the wait the upstream asked for, if it named one.

Trait Implementations

impl Clone for RetryClass

fn clone(&self) -> RetryClass

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RetryClass

impl Debug for RetryClass

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

Formats the value using the given formatter.

impl Eq for RetryClass

impl PartialEq for RetryClass

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RetryClass