Enum SqsDeliveryError 

pub enum SqsDeliveryError {
    QueueNotFound(String),
    InvalidArn(String),
    InvalidParameter(String),
    AccessDenied(String),
    TargetUnavailable(String),
    Kms(KmsError),
}

Error returned by fallible SQS delivery. Used by Scheduler’s DLQ routing, which must distinguish “target queue missing” from “delivered successfully” to decide whether to send to the DeadLetterConfig.Arn.

Variants

QueueNotFound(String)

The target queue ARN did not resolve to any existing queue.

InvalidArn(String)

The ARN could not be parsed into a valid SQS queue identifier.

InvalidParameter(String)

The message violated a constraint required by the target queue (e.g. FIFO send missing MessageDeduplicationId without content-based dedup enabled). Surfaces as a non-retriable failure so the upstream service can route to its configured DLQ.

AccessDenied(String)

The target refused the delivery for lack of authorization (e.g. a Scheduler target bus in another account whose resource policy does not allow the schedule’s role).

TargetUnavailable(String)

The target could not take the delivery right now (e.g. a service’s delivery not wired yet at startup).

Kms(KmsError)

The queue is encrypted and KMS refused to encrypt the message for the sender (e.g. an AWS service principal delivering into a queue under the AWS-managed aws/sqs key, whose policy admits only callers of the account).

Implementations

impl SqsDeliveryError

pub fn relayed_message(&self) -> String

The message a service that relays SQS’s failure reports (an EventBridge dead-letter message’s ERROR_MESSAGE), recorded in the aws-managed-keys fixtures (eventbridge-sqs-target-failures.json): for a KMS refusal, KMS’s relayed message wrapped in SQS’s own AWS SDK service suffix; for a missing queue, SQS’s NonExistentQueue. The other variants are not recorded and report their description.

Trait Implementations

impl Clone for SqsDeliveryError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SqsDeliveryError

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

Formats the value using the given formatter.

impl Display for SqsDeliveryError

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

Formats the value using the given formatter.

impl Eq for SqsDeliveryError

impl Error for SqsDeliveryError

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 SqsDeliveryError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SqsDeliveryError