Struct KinesisMessage 

pub struct KinesisMessage { /* private fields */ }

A record delivered by a KinesisSubscriber.

Acknowledgement is a per-shard checkpoint, not per-message settlement: ack marks this record handled, and when every earlier record on the shard is handled too, the watermark advances and is persisted to the lease store. nack(requeue = true) leaves the record unhandled - the watermark stops advancing, and the records from it onward redeliver when the shard’s lease is next taken (a sharded log repositions; it cannot requeue one message). nack(requeue = false) skips the record (checkpoints past it).

Trait Implementations

impl Debug for KinesisMessage

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

Formats the value using the given formatter.

impl IncomingMessage for KinesisMessage

fn payload(&self) -> &[u8]

Returns the raw payload of the message.

fn headers(&self) -> &Headers

Returns the headers attached to the message.

async fn ack(self) -> Result<(), AckError>

Acknowledges successful processing. Consumes the message handle.

async fn nack(self, requeue: bool) -> Result<(), AckError>

Negatively acknowledges the message. When requeue is true the broker should redeliver according to its own retry policy; when false it should drop or dead-letter the message.

fn partition_key(&self) -> Option<&[u8]>

Returns the routing key the broker partitioned this message by, or None when the message carries no key.

fn supports_nack_after(&self) -> bool

Reports whether this transport can honor nack_after natively.

fn nack_after( self, delay: Duration, ) -> impl Future<Output = Result<(), AckError>> + Send

where Self: Sized,

Negatively acknowledges the message, asking the broker to redeliver it no sooner than delay from now.

impl Partitioned for KinesisMessage

fn partition_key(&self) -> Option<&[u8]>

Returns the partition key for this item, or None if the broker should pick a partition.

impl Positioned for KinesisMessage

type Position = KinesisPosition

The position type, matching the subscription’s Seeker::Position.

fn position(&self) -> KinesisPosition

Returns the position of this delivery; seeking to it redelivers this message.