trait Consumer extends AnyRef

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  1. abstract def assignment: Task[Set[TopicPartition]]

    Returns the topic-partitions that this consumer is currently assigned.

    Returns the topic-partitions that this consumer is currently assigned.

    This is subject to consumer rebalancing, unless using a manual subscription.

  2. abstract def beginningOffsets(partitions: Set[TopicPartition], timeout: zio.Duration = Duration.Infinity): Task[Map[TopicPartition, Long]]
  3. abstract def committed(partitions: Set[TopicPartition], timeout: zio.Duration = Duration.Infinity): Task[Map[TopicPartition, Option[OffsetAndMetadata]]]

    Retrieve the last committed offset for the given topic-partitions

  4. abstract def consumeWith[R, R1, K, V](subscription: Subscription, keyDeserializer: Deserializer[R, K], valueDeserializer: Deserializer[R, V], commitRetryPolicy: Schedule[Any, Any, Any] = ...)(f: (K, V) ⇒ URIO[R1, Unit])(implicit arg0: Tag[R], arg1: Tag[R1]): ZIO[zio.&[R, R1], Throwable, Unit]

    See Consumer.consumeWith.

  5. abstract def endOffsets(partitions: Set[TopicPartition], timeout: zio.Duration = Duration.Infinity): Task[Map[TopicPartition, Long]]
  6. abstract def listTopics(timeout: zio.Duration = Duration.Infinity): Task[Map[String, List[PartitionInfo]]]
  7. abstract def metrics: Task[Map[MetricName, Metric]]

    Expose internal consumer metrics

  8. abstract def offsetsForTimes(timestamps: Map[TopicPartition, Long], timeout: zio.Duration = Duration.Infinity): Task[Map[TopicPartition, OffsetAndTimestamp]]

    Look up the offsets for the given partitions by timestamp.

    Look up the offsets for the given partitions by timestamp. The returned offset for each partition is the earliest offset whose timestamp is greater than or equal to the given timestamp in the corresponding partition.

    The consumer does not have to be assigned the partitions. If no messages exist yet for a partition, it will not exist in the returned map.

  9. abstract def partitionedAssignmentStream[R, K, V](keyDeserializer: Deserializer[R, K], valueDeserializer: Deserializer[R, V]): Stream[Throwable, Chunk[(TopicPartition, ZStream[R, Throwable, CommittableRecord[K, V]])]]

    Create a stream that emits chunks whenever new partitions are assigned to this consumer.

    Create a stream that emits chunks whenever new partitions are assigned to this consumer.

    The top-level stream will emit chunks whenever the consumer rebalances, unless a manual subscription was made. When rebalancing occurs, new topic-partition streams may be emitted and existing streams may be completed.

    All streams can be completed by calling stopConsumption.

  10. abstract def partitionedStream[R, K, V](keyDeserializer: Deserializer[R, K], valueDeserializer: Deserializer[R, V]): Stream[Throwable, (TopicPartition, ZStream[R, Throwable, CommittableRecord[K, V]])]

    Create a stream with messages on the subscribed topic-partitions by topic-partition

    Create a stream with messages on the subscribed topic-partitions by topic-partition

    The top-level stream will emit new topic-partition streams for each topic-partition that is assigned to this consumer. This is subject to consumer rebalancing, unless a manual subscription was made. When rebalancing occurs, new topic-partition streams may be emitted and existing streams may be completed.

    All streams can be completed by calling stopConsumption.

  11. abstract def partitionsFor(topic: String, timeout: zio.Duration = Duration.Infinity): Task[List[PartitionInfo]]
  12. abstract def plainStream[R, K, V](keyDeserializer: Deserializer[R, K], valueDeserializer: Deserializer[R, V], bufferSize: Int = 4): ZStream[R, Throwable, CommittableRecord[K, V]]

    Create a stream with all messages on the subscribed topic-partitions

    Create a stream with all messages on the subscribed topic-partitions

    The stream will emit messages from all topic-partitions interleaved. Per-partition record order is guaranteed, but the topic-partition interleaving is non-deterministic.

    Up to bufferSize chunks may be buffered in memory by this operator.

    The stream can be completed by calling stopConsumption.

  13. abstract def position(partition: TopicPartition, timeout: zio.Duration = Duration.Infinity): Task[Long]
  14. abstract def stopConsumption: UIO[Unit]

    Stops consumption of data, drains buffered records, and ends the attached streams while still serving commit requests.

  15. abstract def subscribe(subscription: Subscription): Task[Unit]
  16. abstract def subscribeAnd(subscription: Subscription): SubscribedConsumer
  17. abstract def subscription: Task[Set[String]]
  18. abstract def unsubscribe: Task[Unit]

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