Apache Kafka handles message delivery by using a pull-based, consumer-driven approach. This means that consumers must request messages from Kafka in order to receive them.

For example, let’s say a consumer wants to receive messages from a Kafka topic. First, the consumer calls the Kafka consumer API and subscribes to the topic. Then, the consumer sends a pull request to the Kafka server. The Kafka server then sends the messages to the consumer. The consumer can then process the messages and send an acknowledgement back to the Kafka server. The Kafka server then removes the messages from the topic. This process is repeated until the consumer has received all the messages from the topic.

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