Source code for airflow.providers.apache.kafka.hooks.consume

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from __future__ import annotations

from typing import Sequence

from confluent_kafka import Consumer

from airflow.providers.apache.kafka.hooks.base import KafkaBaseHook


[docs]class KafkaConsumerHook(KafkaBaseHook):
    """
    A hook for creating a Kafka Consumer.

    :param kafka_config_id: The connection object to use, defaults to "kafka_default"
    :param topics: A list of topics to subscribe to.
    """

    def __init__(self, topics: Sequence[str], kafka_config_id=KafkaBaseHook.default_conn_name) -> None:

        super().__init__(kafka_config_id=kafka_config_id)
        self.topics = topics

    def _get_client(self, config) -> Consumer:
        return Consumer(config)

[docs]    def get_consumer(self) -> Consumer:
        """Returns a Consumer that has been subscribed to topics."""
        consumer = self.get_conn
        consumer.subscribe(self.topics)

        return consumer