object KafkaConsumerObservable extends Serializable
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def
apply[K, V](cfg: KafkaConsumerConfig, topicsRegex: Regex)(implicit K: Deserializer[K], V: Deserializer[V]): KafkaConsumerObservable[K, V, ConsumerRecord[K, V]]
Builds a KafkaConsumerObservable instance.
Builds a KafkaConsumerObservable instance.
- cfg
is the KafkaConsumerConfig needed for initializing the consumer; also make sure to see
monix/kafka/default.conffor the default values being used.- topicsRegex
is the pattern of Kafka topics to subscribe to.
-
def
apply[K, V](cfg: KafkaConsumerConfig, topics: List[String])(implicit K: Deserializer[K], V: Deserializer[V]): KafkaConsumerObservable[K, V, ConsumerRecord[K, V]]
Builds a KafkaConsumerObservable instance.
Builds a KafkaConsumerObservable instance.
- cfg
is the KafkaConsumerConfig needed for initializing the consumer; also make sure to see
monix/kafka/default.conffor the default values being used.- topics
is the list of Kafka topics to subscribe to.
-
def
apply[K, V](cfg: KafkaConsumerConfig, consumer: Task[KafkaConsumer[K, V]]): KafkaConsumerObservable[K, V, ConsumerRecord[K, V]]
Builds a KafkaConsumerObservable instance.
Builds a KafkaConsumerObservable instance.
- cfg
is the KafkaConsumerConfig needed for initializing the consumer; also make sure to see
monix/kafka/default.conffor the default values being used.- consumer
is a factory for the
org.apache.kafka.clients.consumer.KafkaConsumerinstance to use for consuming from Kafka
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def
createConsumer[K, V](config: KafkaConsumerConfig, topicsRegex: Regex)(implicit K: Deserializer[K], V: Deserializer[V]): Task[KafkaConsumer[K, V]]
Returns a
Taskfor creating a consumer instance given topics regex. -
def
createConsumer[K, V](config: KafkaConsumerConfig, topics: List[String])(implicit K: Deserializer[K], V: Deserializer[V]): Task[KafkaConsumer[K, V]]
Returns a
Taskfor creating a consumer instance given list of topics. -
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def
manualCommit[K, V](cfg: KafkaConsumerConfig, topicsRegex: Regex)(implicit K: Deserializer[K], V: Deserializer[V]): KafkaConsumerObservable[K, V, CommittableMessage[K, V]]
Builds a KafkaConsumerObservable instance with ability to manual commit offsets and forcibly disables auto commits in configuration.
Builds a KafkaConsumerObservable instance with ability to manual commit offsets and forcibly disables auto commits in configuration. Such instances emit CommittableMessage instead of Kafka's ConsumerRecord.
Usage example:
KafkaConsumerObservable.manualCommit[String,String](consumerCfg, List(topicName)) .map(message => message.record.value() -> message.committableOffset) .mapEval { case (value, offset) => performBusinessLogic(value).map(_ => offset) } .bufferTimedAndCounted(1.second, 1000) .mapEval(offsets => CommittableOffsetBatch(offsets).commitSync()) .subscribe()
- cfg
is the KafkaConsumerConfig needed for initializing the consumer; also make sure to see
monix/kafka/default.conffor the default values being used. Auto commit will disabled and observable commit order will turned to NoAck forcibly!- topicsRegex
is the pattern of Kafka topics to subscribe to.
-
def
manualCommit[K, V](cfg: KafkaConsumerConfig, topics: List[String])(implicit K: Deserializer[K], V: Deserializer[V]): KafkaConsumerObservable[K, V, CommittableMessage[K, V]]
Builds a KafkaConsumerObservable instance with ability to manual commit offsets and forcibly disables auto commits in configuration.
Builds a KafkaConsumerObservable instance with ability to manual commit offsets and forcibly disables auto commits in configuration. Such instances emit CommittableMessage instead of Kafka's ConsumerRecord.
Usage example:
KafkaConsumerObservable.manualCommit[String,String](consumerCfg, List(topicName)) .map(message => message.record.value() -> message.committableOffset) .mapEval { case (value, offset) => performBusinessLogic(value).map(_ => offset) } .bufferTimedAndCounted(1.second, 1000) .mapEval(offsets => CommittableOffsetBatch(offsets).commitSync()) .subscribe()
- cfg
is the KafkaConsumerConfig needed for initializing the consumer; also make sure to see
monix/kafka/default.conffor the default values being used. Auto commit will disabled and observable commit order will turned to NoAck forcibly!- topics
is the list of Kafka topics to subscribe to.
-
def
manualCommit[K, V](cfg: KafkaConsumerConfig, consumer: Task[KafkaConsumer[K, V]]): KafkaConsumerObservable[K, V, CommittableMessage[K, V]]
Builds a KafkaConsumerObservable instance with ability to manual commit offsets and forcibly disables auto commits in configuration.
Builds a KafkaConsumerObservable instance with ability to manual commit offsets and forcibly disables auto commits in configuration. Such instances emit CommittableMessage instead of Kafka's ConsumerRecord.
Usage example:
KafkaConsumerObservable.manualCommit[String,String](consumerCfg, List(topicName)) .map(message => message.record.value() -> message.committableOffset) .mapEval { case (value, offset) => performBusinessLogic(value).map(_ => offset) } .bufferTimedAndCounted(1.second, 1000) .mapEval(offsets => CommittableOffsetBatch(offsets).commitSync()) .subscribe()
- cfg
is the KafkaConsumerConfig needed for initializing the consumer; also make sure to see
monix/kafka/default.conffor the default values being used. Auto commit will disabled and observable commit order will turned to NoAck forcibly!- consumer
is a factory for the
org.apache.kafka.clients.consumer.KafkaConsumerinstance to use for consuming from Kafka
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