Have you used Kafka for implementing consumer-side interactions?

Yes, I have used Kafka as a consumer to receive messages from topics. Typically, a Kafka Consumer is configured on the consumer side, which subscribes to the necessary topics and processes incoming messages in real-time.

Example in Java using Kafka Consumer API:

Properties props = new Properties();
props.put("bootstrap.servers", "localhost:9092");
props.put("group.id", "test-group");
props.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
props.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");

KafkaConsumer<String, String> consumer = new KafkaConsumer<>(props);
consumer.subscribe(Arrays.asList("my-topic"));

while (true) {
    ConsumerRecords<String, String> records = consumer.poll(Duration.ofMillis(100));
    for (ConsumerRecord<String, String> record : records) {
        System.out.printf("offset = %d, key = %s, value = %s%n", record.offset(), record.key(), record.value());
        // message processing logic here
    }
}

This approach allows asynchronous and reliable receipt and processing of data from event streams.